Thus, further investigations should be undertaken

to evaluate the relevance of pseudo-cystidia at generic level. Although Ko (2000) showed recently on the basis of ITS sequences that Daedaleopsis flavida (Lév.) A. Roy & A. PD0332991 chemical structure Mitra clustered with Pycnoporus, Selleckchem Tariquidar Ryvarden and Johansen (1980) considered this taxon in the synonymy of L. acutus, a species closely related by several morphologic similarities to L. warnieri (Gilbertson and Ryvarden 1987). Morphologic description (Ryvarden and Johansen 1980) and molecular results of L. acutus remind us of our Guianese species named Leiotrametes sp. but thorough comparison of both species finally reveals no real morphological similarities. Genus Artolenzites Falck, Hausschwammforsh 3: 37 (1909) Type species: Daedalea repanda Pers. (= A. elegans (Spreng.: Fr.) Teixeira) Species studied: Artolenzites elegans (Spreng.: Fr.) Teixeira, Rev. Brasil. Bot. 9(1):43 (1986). Observations: So far only one species is recognized in this genus, with an abundant synonymy (Ryvarden and Johansen 1980). However, Liproxstatin-1 solubility dmso we noted several morphological and genetic differences between our collections from New Caledonia and French West Indies, and do not exclude that the type species of the genus – Daedalea repanda Pers., originally from New Guinea (Gaudichaud-Beaupré 1827) might be different from L. elegans from Guadeloupe (Fries 1821). Further comparisons within this cosmopolitan and polymorphic species are required. The morphology

of specimens in this clade matches those formerly described by Vlasák Molecular motor and Kout (2011) and Ryvarden and Johansen

(1980). All basidiomes are white to cream-coloured, glabrous, of large size, spathulate to reniform with acute margin, sometimes with stipe-like base attached to the substrate with a disc. The hymenophore is narrowly daedaleoid to lamellate (Fig. 5a). All possess hyphal pegs. As already stated above the hymenial surface cannot be considered as a separating character at generic level so that Ryvarden (1991) was right on this very point in considering Artolenzites as a taxonomic synonym of Trametes. However, since molecular results clearly separate T. elegans from the core Trametes, the type of abhymenial surface turns out to present the main feature for distinguishing Artolenzites from Trametes. Thus, the aspect and structure of the upper surface are much more significant than the hymenial pattern to separate the genera from the Trametes group. Finally, Artolenzites is distinguished from the other glabrous genera (Pycnoporus, Leiotrametes, ‘Lenzites’ warnieri and the T.cingulata-T. ljubarskyi clade) by lack of both resinous accumulation in the upper surface skeletal hyphae and parietal crystals (Fig. 4d). Key to genera of the Trametes group (see Table 3) 1. Upper surface pubescent to hirsute………..genus Trametes 1. Upper surface glabrous…………………………………………2 2. Basidiome red, incrusting pigment present as orange-red parietal crystals soluble in 5% KOH ……….