. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . X-400 ndral 78 GUIDE TO THE MODELS OF FUNGI. GENUS LIJ.—PORONIA Willd. Stipitate; stroma between fleshy and corky, fructifying surface discoid ; perithecia immersed. The fol-m lowing species is the only one known in^ Britain. 205. Poronia punctata Fr.—Stipi-tate, turbinate, externally blackish ; disctruncate, whitish, dotted with the blackostioles. Gregarious on horse and cow dung.. X-200 Fig. 88.—Poronia punctata Fr.(Natural size.) Section showingperithecia x 2. Ascus x 200. GENUS LIII

. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . X-400 ndral 78 GUIDE TO THE MODELS OF FUNGI. GENUS LIJ.—PORONIA Willd. Stipitate; stroma between fleshy and corky, fructifying surface discoid ; perithecia immersed. The fol-m lowing species is the only one known in^ Britain. 205. Poronia punctata Fr.—Stipi-tate, turbinate, externally blackish ; disctruncate, whitish, dotted with the blackostioles. Gregarious on horse and cow dung.. X-200 Fig. 88.—Poronia punctata Fr.(Natural size.) Section showingperithecia x 2. Ascus x 200. GENUS LIII Stock Photo

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. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . X-400 ndral 78 GUIDE TO THE MODELS OF FUNGI. GENUS LIJ.—PORONIA Willd. Stipitate; stroma between fleshy and corky, fructifying surface discoid ; perithecia immersed. The fol-m lowing species is the only one known in^ Britain. 205. Poronia punctata Fr.—Stipi-tate, turbinate, externally blackish ; disctruncate, whitish, dotted with the blackostioles. Gregarious on horse and cow dung.. X-200 Fig. 88.—Poronia punctata Fr.(Natural size.) Section showingperithecia x 2. Ascus x 200. GENUS LIII.—HYPOXYLON Bull. Convex or plane; stroma corkyor brittle ; perithecia immersed. Thereare thirteen species in Britain. XSmrtt 206. Hypoxylon cocci-neum Bull.—Globose, aboutthe size of a pea, oftenbecoming confluent, at firstpruinose, becoming brown-ish vermilion, black within;perithecia ovate with pro-minent ostiola.

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RM2CE5M7E–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . Fig. 76.—Leotia lubricaPers. (Natural size.) 184. Mitrula cucuUata Fr. — Receptacleovate, globose, or mitrate, even, yellowish-red or ferruginous, ap-proaching black; stalkslender, solid, even,or tomentose down-wards, fl e X u o u s ,darker than recep-tacle or brown-black.Grows gregariouslyon decaying pineleaves in the autumn. Fig. 77, Fr..

RM2CE0H2P–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . dii.Dermini. PRATELLiE.COPRINARII. These groups, except the last, are well represented in themodels, and the outlines on the back of the case show, by the tint of the paper on which they are drawn,the colour of the spores. These series, however, somewhat over-lap, and some species exhibit relationshipswith other Agaricinece not belonging to thegenus Agaricus. The colour of the spores having beendetermined, it is necessary to examine asection of the specimen, especially in re-lation to t

RM2CE0BRH–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . GUIDE TO THE MODELS OF FUNGI. 29 A. tener is very common in pastures and gardens, in grassyplaces in woods, and by grassy roadsides; variable in size, pileusfrom 2 in. to i|in. in diameter. Sub-genus 19. Tubaria.—There are nine British species ofTubaria one only is represented by a model. Tubaria correspondsin structure with Omphalia; but the sporesare ferruginous, not white. All the speciesare small. <^^

RM2CE0FK5–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . GUIDE TO THE MODELS OF FUNGI. 13 Sub-genus 4. Tricholoma.—There are more than seventyBritish species of Tricholoma, of which seven only are representedby models ; all the species are truly terres-trial, and none are marked by a centraldepression of the pileus. The sterri hasneither volva nor ring; the gills are neverfree from the stem, but are distinctlysinuate. None have been recorded aspoisonous, although a few may be sus-pected, as A. sulphureus, which has anoffensive odour ; A. sapo

RM2CE07K0–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . change colour to cinna-mon, and by ferruginous spores. Thespecies appear of various colours at dif-ferent periods of growth and according asthey are wet or dry ; all are terrestrialand autumnal. They are frequently confounded with species ofPholiota and Hebcloma, but these do not possess a cortina. C. violaceus Yr. is looked upon as esculent. The Rev M. J.Berkeley has recorded an undoubted case of poisoning by C. bolarisFr.: the results were alarming, but not fatal; the symptoms were gr

RM2CE0ARH–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . 30 GUIDE TO THE MODELS OF FUNGI. are a hundred British species of Pratcllce, eight of which are repre-sented by models. The species with brownish-purple and brownishspores are often confused with the Dcnuini. Some PraMlce producefew spores, and the gills remain white. Sub-genus 21. Psalliota.—There are eleven British speciesof Psalliota (with many varieties) ; two species are represented by models. Psalliota agrees in structure andhabit with Lcpiota; but the spores are darkpurple shaded

RM2CE0DCJ–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . ple, if true to nature, would suggest Amanita. SuB-GENUS II. Pluteus.—There are thirteen British species ofPluteuSy only one of which is represented by a model. All the species are beautiful; some are very large in size,others are most brilliant in colour. Allthe species have ringless stems and freegills, and grow on or near stumps, or onsticks or sawdust. None are edible; theodour of some is faint and unpleasant.Pluteus agrees in structure with Hiatulaand Plutcolus; but the spores are

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RM2CE5GX2–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . p-shaped,marginate ; epidermis thin, contiguous, glabrous, pruinose or floccoso-furfuraceous, persistent, distinct; cups adfixed to the centre, oftenstipitate, unfolding, more or less concave, often becoming plane ;hymenium smooth, nearly always differing in colour; substancefleshy-membranaceous, not waxy or gelatinous. There are morethan a hundred British species of Pesiza, of which nine arerepresented by models. 187. Peziza macropus Pers.—Cup stalked, hemispherical, thenexpanded, some

RM2CE0EA6–. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . runks ottrees, where it grows abundantly from midsummer to early winter;soon withering in dry weather, but reviving with moisture. Sub-genus 8. Omphalia.—There are nearly forty British speciesof Omphalia, two of which are represented by models. All the species are small; the pileus is generallydepressed, the gills decurrent. Somespecies of Omphalia grow on the ground,others in moist situations among or upondead twigs, leaves, mosses, etc. They aremost commonly met with in wet weather,an

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