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. The structure and development of mosses and ferns (Archegoniatae). r pits to be formed between the adja-cent cells (Fig. 3, C). The subsequent divisions in the papillaeare all transverse, and this transforms each papillate surface cellinto a row of cells which, as it elongates, causes the pitsbetween it and the adjacent ones to become deep but narrowair-channels, so that in the older parts of the thallus the upperportion is composed of closely-set vertical rows of chlorophyll-bearing cells separated by narrow clefts opening at the surface. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well Stock Photo
RM2AFN9T4–. The structure and development of mosses and ferns (Archegoniatae). r pits to be formed between the adja-cent cells (Fig. 3, C). The subsequent divisions in the papillaeare all transverse, and this transforms each papillate surface cellinto a row of cells which, as it elongates, causes the pitsbetween it and the adjacent ones to become deep but narrowair-channels, so that in the older parts of the thallus the upperportion is composed of closely-set vertical rows of chlorophyll-bearing cells separated by narrow clefts opening at the surface. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well as other species, the uppermost cell of each row often enlarges very much, and with its fellows in the other rows constitutes the epidermis. According to Leitgeb's researches this epidermal cell is formed by the first division in the outer cell of the segment, and either undergoes no further division, or by dividing once by a transverse wall forms a two- layered epidermis ( R. BischoMi). On the ventral side the odter cells of the segments pro Stock Photo
RMPG060R–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well as other species, the uppermost cell of each row often enlarges very much, and with its fellows in the other rows constitutes the epidermis. According to Leitgeb's researches this epidermal cell is formed by the first division in the outer cell of the segment, and either undergoes no further division, or by dividing once by a transverse wall forms a two- layered epidermis ( R. BischoMi). On the ventral side the odter cells of the segments pro
Elementary botany (1898) Elementary botany . elementarybotany00atki Year: 1898 Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of th Stock Photo
RMRYTTWJ–Elementary botany (1898) Elementary botany . elementarybotany00atki Year: 1898 Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of th
. Elementary botany . Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—Thus we h Stock Photo
RMMA72N0–. Elementary botany . Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—Thus we h
Elementary botany . Nearly mature sporogonium of Riccia crystallina;mature spore at the right. Fig. 256.Riccia glauca; archegoniumcontaining nearly mature spo-rogonium. sg, spore-producingcells surrounded by single layerof sterile cells, the wall of thesporogonium. fours are the spores. At this time the wall of the spore-case dis-solves, the spores separate from each other and fill the now en-larged venter of the archegonium. When the thallus dies theyare liberated, or escape between the loosely arranged cells ofthe upper surface. 481. A new phase in plant life.—Thus we have here in thesporogo Stock Photo
RM2AJD2R5–Elementary botany . Nearly mature sporogonium of Riccia crystallina;mature spore at the right. Fig. 256.Riccia glauca; archegoniumcontaining nearly mature spo-rogonium. sg, spore-producingcells surrounded by single layerof sterile cells, the wall of thesporogonium. fours are the spores. At this time the wall of the spore-case dis-solves, the spores separate from each other and fill the now en-larged venter of the archegonium. When the thallus dies theyare liberated, or escape between the loosely arranged cells ofthe upper surface. 481. A new phase in plant life.—Thus we have here in thesporogo
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 1.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above; B, from below; ^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca, X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2; ^1 antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom, and the new branches are for the most part lateral. The thallus. Please note that these images are extracted from scanned page images that may have been digitally enhanc Stock Photo
RMPG0611–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 1.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above; B, from below; ^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca, X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2; ^1 antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom, and the new branches are for the most part lateral. The thallus. Please note that these images are extracted from scanned page images that may have been digitally enhanc
Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0601rabe Year: 1906 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellulose besteht, und dem Exospor, aus e Stock Photo
RMRYH64M–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0601rabe Year: 1906 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellulose besteht, und dem Exospor, aus e
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 5. Riccia glauca. Querschnitt durch den Thallus. Yerg. ^"/i- Reihen sich verdeutlichen, so muß man eine gemeinsame Urform mit i^ic'cia-Sporogon und etwa Aneura-ThdüMvi^ annehmen, von der sich dann in zwei Richtungen Rieden und anakrogyne Jungermannien herleiten lassen. Über die Beschaffenheit des Rieda-ThdWvi?, gibt wieder ein Querschnitt die erwünschte Auskunft. Als Beispiel sei die verbreitete Rieeia glauea gewählt. (Vergl. Fig. 5.) Man erkennt auf der ThallusunterSeite ein nicht sehr mächtiges p Stock Photo
RMMAB3E5–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 5. Riccia glauca. Querschnitt durch den Thallus. Yerg. ^"/i- Reihen sich verdeutlichen, so muß man eine gemeinsame Urform mit i^ic'cia-Sporogon und etwa Aneura-ThdüMvi^ annehmen, von der sich dann in zwei Richtungen Rieden und anakrogyne Jungermannien herleiten lassen. Über die Beschaffenheit des Rieda-ThdWvi?, gibt wieder ein Querschnitt die erwünschte Auskunft. Als Beispiel sei die verbreitete Rieeia glauea gewählt. (Vergl. Fig. 5.) Man erkennt auf der ThallusunterSeite ein nicht sehr mächtiges p
. The structure and development of mosses and ferns (Archegoniatae). Fig. I.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above;B, from below; (^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca,X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2;^, antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom,and the new branches are for the most part lateral. The thallus II MUSCINE^—HEPA TIC^—MARCH ANTI ALES 23 is fastened to the substratum by rhizoids, which are unicellularand usually of two kinds, those with Stock Photo
RM2AFNGWN–. The structure and development of mosses and ferns (Archegoniatae). Fig. I.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above;B, from below; (^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca,X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2;^, antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom,and the new branches are for the most part lateral. The thallus II MUSCINE^—HEPA TIC^—MARCH ANTI ALES 23 is fastened to the substratum by rhizoids, which are unicellularand usually of two kinds, those with
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 4.—A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (w), X525; B, ripe archegonium of R, glauca^ longitudinal section, X260. separates the ventral canal cell from the egg. The four primary cover cells enlarge a good deal as the archegonium approaches maturity, and divide by radial walls usually once, so that the complete number is normally eight—^Janczewski gives ten in R. BischoMi. The basal cell finally divides into a single lower cell which remains undivided, comple Stock Photo
RMPG0609–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 4.—A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (w), X525; B, ripe archegonium of R, glauca^ longitudinal section, X260. separates the ventral canal cell from the egg. The four primary cover cells enlarge a good deal as the archegonium approaches maturity, and divide by radial walls usually once, so that the complete number is normally eight—^Janczewski gives ten in R. BischoMi. The basal cell finally divides into a single lower cell which remains undivided, comple
Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0601rabe Year: 1906 Riccia. 191 Riccia War'nstorfii ist wohl weiter verbreitet, als mau bisher annahm; sie ist jedoch nicht leicht von den verwandten Arten zu unterscheiden. Von R. glauca und R. sorocarpa unterscheidet sie sich durch zierlicheren Wuchs und sehr dicken Thallus mit gewöhnlich stumpf zugespitzten dicken Rän- dern, die manchmal auch Zilien tragen. Ich halte R. commutata für sehr nahe verwandt mit R. Wavxstorßi. Beide Arten unterscheiden sicl Stock Photo
RMRYYTFT–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0601rabe Year: 1906 Riccia. 191 Riccia War'nstorfii ist wohl weiter verbreitet, als mau bisher annahm; sie ist jedoch nicht leicht von den verwandten Arten zu unterscheiden. Von R. glauca und R. sorocarpa unterscheidet sie sich durch zierlicheren Wuchs und sehr dicken Thallus mit gewöhnlich stumpf zugespitzten dicken Rän- dern, die manchmal auch Zilien tragen. Ich halte R. commutata für sehr nahe verwandt mit R. Wavxstorßi. Beide Arten unterscheiden sicl
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 123. Riccia glauca. a Querschnitte durch alten Thallus Verg. ''Vi- (= Original der R. rup])inensis) b Habitusbild der var. subinermis Verg. ^j. (Nach Levier). (Vergl. ferner Fig. 5 S. 11 und Fig. 97 8. 142). Tai*, subinermis (Lindberg) AVarnstorf, Krypt. Fl. d. Mark Brandenbg. I. S. 70. (1903.) Synonyme: Riccia subinermis Lindberg Meddel. Soc. Fauna et Flora fennica 1881. Rev. bryolog. 1882. S. 82 z. T. Riccia glauca var. ciliaris Warn stör fj, Verh. Bot. Ver. Brandenbg. Jalirg. 17. S. 87. (1885). Ricci Stock Photo
RMMAB37G–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 123. Riccia glauca. a Querschnitte durch alten Thallus Verg. ''Vi- (= Original der R. rup])inensis) b Habitusbild der var. subinermis Verg. ^j. (Nach Levier). (Vergl. ferner Fig. 5 S. 11 und Fig. 97 8. 142). Tai*, subinermis (Lindberg) AVarnstorf, Krypt. Fl. d. Mark Brandenbg. I. S. 70. (1903.) Synonyme: Riccia subinermis Lindberg Meddel. Soc. Fauna et Flora fennica 1881. Rev. bryolog. 1882. S. 82 z. T. Riccia glauca var. ciliaris Warn stör fj, Verh. Bot. Ver. Brandenbg. Jalirg. 17. S. 87. (1885). Ricci
The structure & development of the mosses and ferns (Archegoniatae) . Fig. I.—Marchantiace^. A, B, Male plants of Fiiiibriaria Callforiiica (Hampe). A, from above ;B, from below ; c5i antheridial receptacle; /, ventral lamella, X4; C, Riccta glaiica (h.), X6;sp, sporogonia; D, Cotiocephalus conicus (Corda), X4 ; E, Targionia hypophylla. (L.), X2 ; i,antheridial branch. contains air-spaces in all forms except some species ofDumortiera, and these spaces are either simple narrow canals, 24 MOSSES AND FERNS chap. as in Riccia glauca, or they may be large chambers separatedby a single layer of cell Stock Photo
RM2AX0XH3–The structure & development of the mosses and ferns (Archegoniatae) . Fig. I.—Marchantiace^. A, B, Male plants of Fiiiibriaria Callforiiica (Hampe). A, from above ;B, from below ; c5i antheridial receptacle; /, ventral lamella, X4; C, Riccta glaiica (h.), X6;sp, sporogonia; D, Cotiocephalus conicus (Corda), X4 ; E, Targionia hypophylla. (L.), X2 ; i,antheridial branch. contains air-spaces in all forms except some species ofDumortiera, and these spaces are either simple narrow canals, 24 MOSSES AND FERNS chap. as in Riccia glauca, or they may be large chambers separatedby a single layer of cell
. Die Algen, Moose und Farnpflanzen. . %a. XXI. 1. Riccia glauca, auf bem 33oben hmdf)fenb. 2. Eiccia minima, &uerfd)nitt burd) einen 2^aUuilappen, mit iungen ©porogonien. 3. Eiccia fluitans, unter SBaffer le&enbe 3rorm. 4. Anthoceros laevis, mit reifen ebe3 frei. (Elateren werben ntdjt gebilbet. ©er £r)attu§ ift fetjr regelmäßig bid)otom ber^roeigt unb bifbet meift gietüd)eJKofetten auf feudjter (ärbe (Riccia glauca, crystallina u. a.). Riccia fluitans ift eine im Söaffer fdjtoimmenbe, fterite gorm ber R. canaliculata. Ricciocarpus natans fcrjftnmmt auf bem Sßaffer. SSeibe Wirten fru Stock Photo
RMMEJY2Y–. Die Algen, Moose und Farnpflanzen. . %a. XXI. 1. Riccia glauca, auf bem 33oben hmdf)fenb. 2. Eiccia minima, &uerfd)nitt burd) einen 2^aUuilappen, mit iungen ©porogonien. 3. Eiccia fluitans, unter SBaffer le&enbe 3rorm. 4. Anthoceros laevis, mit reifen ebe3 frei. (Elateren werben ntdjt gebilbet. ©er £r)attu§ ift fetjr regelmäßig bid)otom ber^roeigt unb bifbet meift gietüd)eJKofetten auf feudjter (ärbe (Riccia glauca, crystallina u. a.). Riccia fluitans ift eine im Söaffer fdjtoimmenbe, fterite gorm ber R. canaliculata. Ricciocarpus natans fcrjftnmmt auf bem Sßaffer. SSeibe Wirten fru
. The vegetable kingdom : or, The structure, classification, and uses of plants, illustrated upon the natural system. w hich, in the latter orders,the spores are dispersed ; and to Split-mosses and Urn mosses,because they want the complicated apparatus which is added tothe spore-cases of those orders, under the form of either an oper-culum, or peristome. According to Endlicher, the Crystahvortspass through Corsmia into the tribe of Liverworts, and l)y Sphsero-carpus into that of Scalemosses. There is a detailed account, byUuger, of the anatomy of Riccia glauca, in the Lmnoeo, vol. xiii. p. 1. Stock Photo
RM2CEXKFR–. The vegetable kingdom : or, The structure, classification, and uses of plants, illustrated upon the natural system. w hich, in the latter orders,the spores are dispersed ; and to Split-mosses and Urn mosses,because they want the complicated apparatus which is added tothe spore-cases of those orders, under the form of either an oper-culum, or peristome. According to Endlicher, the Crystahvortspass through Corsmia into the tribe of Liverworts, and l)y Sphsero-carpus into that of Scalemosses. There is a detailed account, byUuger, of the anatomy of Riccia glauca, in the Lmnoeo, vol. xiii. p. 1.
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellulose besteht, und dem Exospor, aus einer chemisch noch wenig bekannten S Stock Photo
RMMAB3AH–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellulose besteht, und dem Exospor, aus einer chemisch noch wenig bekannten S
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well as other species, the uppermost cell of each row often enlarges very much, and with its fellows in the other rows constitutes the epidermis. According to Leitgeb's researches this epidermal cell is formed by the first division in the outer cell of the segment, and either undergoes no further division, or by dividing once by a transverse wall forms a two- layered epidermis ( R. BischoMi). On the ventral side the odter cells of the segments pro Stock Photo
RMRDF3K5–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well as other species, the uppermost cell of each row often enlarges very much, and with its fellows in the other rows constitutes the epidermis. According to Leitgeb's researches this epidermal cell is formed by the first division in the outer cell of the segment, and either undergoes no further division, or by dividing once by a transverse wall forms a two- layered epidermis ( R. BischoMi). On the ventral side the odter cells of the segments pro
. A Ricpia Bi.schoffii: 1 Slafen, nntürl.cyröfie; 2 Sappen bcä- fefbcii, ocrflröfecrt, mit 3ll)t= ^otbeu unb SUntljeribieiiftiftcn. 13 Riocia minima: 1 Slafen, natürliche Övö^e; 2 i!äng§s fc^nitt, oergröRei-t, mit 3ll)is äoi'bcn unb Sporoflonicn; 3 S!äng3f(t)nitt, ftärfer i)er= gröpert, mit iruftgängen unb Mnt^cribium; 4 Sporen, oer? grö^ert, ein5c[ne unb Jetrabc. C Kiccia glauca; 1 u. 2 Olafen, natürl. Wröpe; 3 Säng5fd;nitt, yuilj. 39: Seljcnno »ergröftert, mit Slrc^egonien; 4 jungcS Sporogonium mit Ao[i)ptra, wcrgröfjert, innen SporenmutterjeUen. D Riccia ciliata: Üäng§frf;nitt, mit 2(rcOego Stock Photo
RMMCRB69–. A Ricpia Bi.schoffii: 1 Slafen, nntürl.cyröfie; 2 Sappen bcä- fefbcii, ocrflröfecrt, mit 3ll)t= ^otbeu unb SUntljeribieiiftiftcn. 13 Riocia minima: 1 Slafen, natürliche Övö^e; 2 i!äng§s fc^nitt, oergröRei-t, mit 3ll)is äoi'bcn unb Sporoflonicn; 3 S!äng3f(t)nitt, ftärfer i)er= gröpert, mit iruftgängen unb Mnt^cribium; 4 Sporen, oer? grö^ert, ein5c[ne unb Jetrabc. C Kiccia glauca; 1 u. 2 Olafen, natürl. Wröpe; 3 Säng5fd;nitt, yuilj. 39: Seljcnno »ergröftert, mit Slrc^egonien; 4 jungcS Sporogonium mit Ao[i)ptra, wcrgröfjert, innen SporenmutterjeUen. D Riccia ciliata: Üäng§frf;nitt, mit 2(rcOego
. Elementary botany. Botany. a-T. Fig- 174- Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig. 175. Riccia glauca; archegonium containing nearly mature spo- rogonium. sg, spore-producmg cells surrounded by single layer 'all o£ the sporogonium. of sterile cells, the wall fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plan Stock Photo
RMRE0P5P–. Elementary botany. Botany. a-T. Fig- 174- Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig. 175. Riccia glauca; archegonium containing nearly mature spo- rogonium. sg, spore-producmg cells surrounded by single layer 'all o£ the sporogonium. of sterile cells, the wall fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plan
. Elementary botany. Botany. Fig. 174. Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig- '75- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg; spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—T Stock Photo
RMRDWG4M–. Elementary botany. Botany. Fig. 174. Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig- '75- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg; spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—T
. Elementary botany. Botany. Fig. 255- Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig. 236. Riccia glauca; archegonium containing neariv mature spo- rogonium. j,v, spore-producing cells surrounded bv single layer of sterile cells, the wall of the sporogonium. fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 481. A new phase in plant life.— Stock Photo
RMRE2MX0–. Elementary botany. Botany. Fig. 255- Nearly mature sporogonium of Riccia crystallina; mature spore at the right. Fig. 236. Riccia glauca; archegonium containing neariv mature spo- rogonium. j,v, spore-producing cells surrounded bv single layer of sterile cells, the wall of the sporogonium. fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 481. A new phase in plant life.—
. Elementary botany. Botany. Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—Th Stock Photo
RMRD2HEC–. Elementary botany. Botany. Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of the upper surface. 314. A new phase in plant life.—Th
. Botany of the living plant. Botany; Plants. Fig. 370. A — archegonium of Riccia trichocarpa, showing ventral canal-cell (v) and ovum. ( x 525-) B=ripe archegonium of Riccia glauca. ( x 260.) (After Campbell.) their origin may have been distinct. In the thalloid Liverworts they are always borne on the morphologically upper surface ; but by various means they are carefully protected, being sometimes sunk deeply in the thallus (Fig. 370). In the Jungermanniae they are covered in by envelopes, the number and variety of which give useful features in classification. A particular interest attaches Stock Photo
RMRH7YY3–. Botany of the living plant. Botany; Plants. Fig. 370. A — archegonium of Riccia trichocarpa, showing ventral canal-cell (v) and ovum. ( x 525-) B=ripe archegonium of Riccia glauca. ( x 260.) (After Campbell.) their origin may have been distinct. In the thalloid Liverworts they are always borne on the morphologically upper surface ; but by various means they are carefully protected, being sometimes sunk deeply in the thallus (Fig. 370). In the Jungermanniae they are covered in by envelopes, the number and variety of which give useful features in classification. A particular interest attaches
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 1.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above; B, from below; ^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca, X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2; ^1 antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom, and the new branches are for the most part lateral. The thallus. Please note that these images are extracted from scanned page images that may have been digitally enhanc Stock Photo
RMRDF3KG–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 1.—Marchantiales. A, B, Male plants of Fimbriaria Californica. A, from above; B, from below; ^, antheridial receptacle; /, ventral lamellae, X4; C, Riccia glauca, X6; sp, sporogonia; D, Conocephalus conicus, X4; E, Targionia hypophylla, X2; ^1 antheridial branch. e.g., Targionia (Fig. i, E), may fork comparatively seldom, and the new branches are for the most part lateral. The thallus. Please note that these images are extracted from scanned page images that may have been digitally enhanc
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 184 Riccia. Ist nur durch Größe vor dem Typus R. glauca ausgezeichnet. Rosetten bis 25 mm im Durchmesser. Hauptabschnitte des Thallus herzförmig, an der Spitze wenig geteilt.. Fig. 123. Riccia glauca. a Querschnitte durch alten Thallus Verg. ''Vi- (= Original der R. rup])inensis) b Habitusbild der var. subinermis Verg. ^j. (Nach Levier). (Vergl. ferner Fig. 5 S. 11 und Fig. 97 8. 142). Tai*, subinermis (Lindberg) AVarnstorf, Krypt. Fl. d Stock Photo
RMRED519–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 184 Riccia. Ist nur durch Größe vor dem Typus R. glauca ausgezeichnet. Rosetten bis 25 mm im Durchmesser. Hauptabschnitte des Thallus herzförmig, an der Spitze wenig geteilt.. Fig. 123. Riccia glauca. a Querschnitte durch alten Thallus Verg. ''Vi- (= Original der R. rup])inensis) b Habitusbild der var. subinermis Verg. ^j. (Nach Levier). (Vergl. ferner Fig. 5 S. 11 und Fig. 97 8. 142). Tai*, subinermis (Lindberg) AVarnstorf, Krypt. Fl. d
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellu Stock Photo
RMRED6WN–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellu
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellu Stock Photo
RMRED6WP–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 4 5 6 Fig. G9. Verschiedene S p o r e n f o r m e ii. 1. Sphaerocarpus terrestris. 2. Anthoceros punctatus. 3. Pellia epiphylla. 4. (alypogeia trichomanis. 5. Riccia glauca. 6. Fossombroiiia caespitiformis. Vergrössert. Außer durch Grüße unterscheiden sich die Sporen verschiedener Arten häufig auch durch ihre äußerliche Beschaffenheit. (Vergl. Fig. 69.) Die Sporenwand baut sich aus zwei Schichten auf, dem Endospor (Intine), das aus Zellu
. Annales des Sciences Naturelles Botaniques. TABLE DES PLANCHES RELATIVES AUX MEMOIRES CONTENUS DANS CE VOLUME. Planche i. Yg. i. Bourgeons nés sur une feuille de Drosera interme- dia.— Fig. 2. Dilophora graminis. — Fig. 3. Mgerita perpusilla. 2,3 et 4. Tissus végétaux. 5, 6, 7 et 8. Anthères du Chara. 9. Organes reproducteurs du Riccia glauca. 10, 11 et 12. Anatomie des Lemna. ï3. Structure des vaisseaux annulaires. i4. Quarlinia Abyssinien. 4 5. I. Lefebvrea abyssinica.— II. Antopetitia abyssinica. 16. I. Platanthera tricruris. — II. Peristylus Quarlinia- nus.— III. Peristylus Lefebvreanus Stock Photo
RMRMXHMN–. Annales des Sciences Naturelles Botaniques. TABLE DES PLANCHES RELATIVES AUX MEMOIRES CONTENUS DANS CE VOLUME. Planche i. Yg. i. Bourgeons nés sur une feuille de Drosera interme- dia.— Fig. 2. Dilophora graminis. — Fig. 3. Mgerita perpusilla. 2,3 et 4. Tissus végétaux. 5, 6, 7 et 8. Anthères du Chara. 9. Organes reproducteurs du Riccia glauca. 10, 11 et 12. Anatomie des Lemna. ï3. Structure des vaisseaux annulaires. i4. Quarlinia Abyssinien. 4 5. I. Lefebvrea abyssinica.— II. Antopetitia abyssinica. 16. I. Platanthera tricruris. — II. Peristylus Quarlinia- nus.— III. Peristylus Lefebvreanus
. Bulletin de la Société Impériale des Naturalistes de Moscou. 84 Zahlen. Ordo LXXXII. 338 782 783 784 339 785 340 786 Ordo LXXXHI. 341 787 Ordo LXXXIV. 342 788 Ordo LXXXV. 343 789 Ordo LXXXVI. 344 790 791 Namen. Filices R. Br. Aspidium R. Br. » Thelypteris. h » spinulosuinSw. n. h. » affine Fisch. et Meyer n. h. Asplenium L. » Filix foemina Bernh. h. Cystopteris Bernh. » fragilis Bernh. Q*. h. Hepaticae Juss. Riccia. » glauca (Beckeriana C. A. Meyer). 0. h. Musci Juss. Funaria. » hygrometrica.^.h. Characeae Rich. Chara » vulgaris? h. Lichenes Hofïm. Parmelia. » seruposa. h. » (conspersa. h. L Stock Photo
RMRGPBEF–. Bulletin de la Société Impériale des Naturalistes de Moscou. 84 Zahlen. Ordo LXXXII. 338 782 783 784 339 785 340 786 Ordo LXXXHI. 341 787 Ordo LXXXIV. 342 788 Ordo LXXXV. 343 789 Ordo LXXXVI. 344 790 791 Namen. Filices R. Br. Aspidium R. Br. » Thelypteris. h » spinulosuinSw. n. h. » affine Fisch. et Meyer n. h. Asplenium L. » Filix foemina Bernh. h. Cystopteris Bernh. » fragilis Bernh. Q*. h. Hepaticae Juss. Riccia. » glauca (Beckeriana C. A. Meyer). 0. h. Musci Juss. Funaria. » hygrometrica.^.h. Characeae Rich. Chara » vulgaris? h. Lichenes Hofïm. Parmelia. » seruposa. h. » (conspersa. h. L
. The structure and development of mosses and ferns (Archegoniatae). Fig. 4.—^A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (f),XS25; B, ripe archegonium of R. glauca, longitudinal section, X260. separates the ventral canal cell from the ^gg. The fourprimary cover cells enlarge a good deal as the archegoniumapproaches maturity, and divide by radial walls usually once,so that the complete number is normally eight—Janczewskigives ten in R. BischoMi. The basal cell finally divides into asingle lower cell which remains undivided, completely sunk inthe thallus, and an upper c Stock Photo
RM2AFN99G–. The structure and development of mosses and ferns (Archegoniatae). Fig. 4.—^A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (f),XS25; B, ripe archegonium of R. glauca, longitudinal section, X260. separates the ventral canal cell from the ^gg. The fourprimary cover cells enlarge a good deal as the archegoniumapproaches maturity, and divide by radial walls usually once,so that the complete number is normally eight—Janczewskigives ten in R. BischoMi. The basal cell finally divides into asingle lower cell which remains undivided, completely sunk inthe thallus, and an upper c
. Die Algen, Moose und Farnpflanzen.. fiebertnoofe. 81 Reboulia unb anbete, ©ine Heine©rup^e, Astroporae genannt, ift bnrd) fternförmige Sttemöffnungen ausgezeichnet. Biceiaceae. ©ie 9fticciaceen (£af. XXI: 1—3) finb bnrd) ein* fadjere Drganifation bon ben Sttarcrjantiaceen unterfdjieben. 3)ie Suftlammern be3 £i)atfu3 enthalten, fcrffö fie überf)au:pt entttritfeft finb, lein $ffimüatiou3geit>ebe unb leine ober nur rubimentäre ^temöffnungen. Stntfjeribien unb Sfrdjegonien. %a. XXI. 1. Riccia glauca, auf bem 33oben hmdf)fenb. 2. Eiccia minima, &uerfd)nitt burd) einen 2^aUuilappen, mit iu Stock Photo
RMRCPRY9–. Die Algen, Moose und Farnpflanzen.. fiebertnoofe. 81 Reboulia unb anbete, ©ine Heine©rup^e, Astroporae genannt, ift bnrd) fternförmige Sttemöffnungen ausgezeichnet. Biceiaceae. ©ie 9fticciaceen (£af. XXI: 1—3) finb bnrd) ein* fadjere Drganifation bon ben Sttarcrjantiaceen unterfdjieben. 3)ie Suftlammern be3 £i)atfu3 enthalten, fcrffö fie überf)au:pt entttritfeft finb, lein $ffimüatiou3geit>ebe unb leine ober nur rubimentäre ^temöffnungen. Stntfjeribien unb Sfrdjegonien. %a. XXI. 1. Riccia glauca, auf bem 33oben hmdf)fenb. 2. Eiccia minima, &uerfd)nitt burd) einen 2^aUuilappen, mit iu
. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 4.—A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (w), X525; B, ripe archegonium of R, glauca^ longitudinal section, X260. separates the ventral canal cell from the egg. The four primary cover cells enlarge a good deal as the archegonium approaches maturity, and divide by radial walls usually once, so that the complete number is normally eight—^Janczewski gives ten in R. BischoMi. The basal cell finally divides into a single lower cell which remains undivided, comple Stock Photo
RMRDF3JP–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. Fig. 4.—A, Archegonium of Riccia trichocarpa, showing the ventral canal cell (w), X525; B, ripe archegonium of R, glauca^ longitudinal section, X260. separates the ventral canal cell from the egg. The four primary cover cells enlarge a good deal as the archegonium approaches maturity, and divide by radial walls usually once, so that the complete number is normally eight—^Janczewski gives ten in R. BischoMi. The basal cell finally divides into a single lower cell which remains undivided, comple
. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. Riccia. 191 Riccia War'nstorfii ist wohl weiter verbreitet, als mau bisher annahm; sie ist jedoch nicht leicht von den verwandten Arten zu unterscheiden. Von R. glauca und R. sorocarpa unterscheidet sie sich durch zierlicheren Wuchs und sehr dicken Thallus mit gewöhnlich stumpf zugespitzten dicken Rän- dern, die manchmal auch Zilien tragen. Ich halte R. commutata für sehr nahe verwandt mit R. Wavxstorßi. Beide Arten unterscheiden sicli w Stock Photo
RMRED512–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. Riccia. 191 Riccia War'nstorfii ist wohl weiter verbreitet, als mau bisher annahm; sie ist jedoch nicht leicht von den verwandten Arten zu unterscheiden. Von R. glauca und R. sorocarpa unterscheidet sie sich durch zierlicheren Wuchs und sehr dicken Thallus mit gewöhnlich stumpf zugespitzten dicken Rän- dern, die manchmal auch Zilien tragen. Ich halte R. commutata für sehr nahe verwandt mit R. Wavxstorßi. Beide Arten unterscheiden sicli w
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