Fig 3 - uploaded by Ángela López-Villalba
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Licea pygmaea (Meyl.) Ing EG5399: a. Sporocarps, b. Spores, c. Spore, d. Details of the spore ornamentation. Scale bars: a = 0.5 mm, b = 10 µm, c = 2 µm, d = 1 µm.
Source publication
The volcanic Canary Islands constitute a biodiversity hotspot. Although our knowledge of the native flora and fauna species is extensive, the myxobiota of these islands is not so well-known. For this reason, we provide herein eight new records for the checklist of Canarian myxomycetes with accurate descriptions and macro- and microphotographs. The...
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Islands are plant invasion hotspots, with some having more non-native than native species. Many plants are recent arrivals, leading to concerns that their full spread and impacts are not yet realised. Given that islands host extraordinary numbers of endemic and threatened species, schemes are urgently needed to track the complex, species-rich but d...
Citations
A taxonomic revision of the genus Licea, subgenus Licea, using type collections and SEM imaging of the type material is presented. The type specimens of 20 species were obtained and studied simultaneously, and detailed comparisons of morphological features by light microscope and SEM were made. In four other species only published information was analized. The SEM imaging of the type material has enabled clarification of some taxonomic characters, such as the number of peridial layers, ornamentation of the inner surface of the peridium, and the ornamentation of the epispore. As a result of this study a new species from Mexico, Licea ampullliformis, has been formally described, and synonymy has been found in the case of two species, L. castanea and the recently described L. bryocorticola. As no type material was found for L. minima, a neotype has been designated here. In the case of L. pusilla an epitype has been selected in addition to the illustration, published in 18th century, which was chosen as a lectotype. A dichotomous key of the species examined is proposed to facilitate their identification.
The genus Perichaena now includes 38 morphospecies and characterized by yellow spore mass, fairly dense per-idium, and the absence of spiral bands on the capillitium tubes ornamented with spines or warts. In some cases, capillitium may be reduced or absent, which tends to obscure the taxonomic boundaries of Perichaena, causing it to approach the genus Licea. During the last 50 years, many new widespread species were described in literature , however, some of them have not been included in fundamental monographs or identification keys. In this paper we summarize data on the genus Perichaena, including its nomenclature history, and propose illustrated identification keys to the species of this genus. The short morphological descriptions and illustrations of 13 species recorded in Russia are presented.
