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 Add this item to the list   563414 Original description
   
Remarks (public):This is the largest clade in the Graphidaceae, comprising roughly 600 accepted species in 15 genera. It largely corresponds to the traditional definition of the family Graphidaceae (Staiger, 2002), with the exception of the genera Dyplolabia and Fissurina (subfamily Fissurinoideae) and Acanthothecis and Carbacanthographis (tribe Thelotremateae). Graphideae is characterized by largely lirellate or (pseudo-stromatic) ascomata and amyloid or pigmented ascospores; the lirellate genera in other clades (Fissurinoideae, Thelotremateae) have always hyaline, predominantly non-amyloid (to weakly amyloid) ascospores. Allographa, Glyphis, Graphis, and Schistophoron are well-delimited, strongly supported monophyletic clades (Rivas Plata et al., 2011a), whereas the genera Diorygma and allies (Anomomorpha, Platythecium, Thalloloma) and Phaeographis and allies (all brown-spored lineages) require further phylogenetic studies. Tribe Graphideae can be subdivided into two strongly supported clades, one including Graphis and the other including all other genera (Rivas Plata et al., 2011a). The Graphis clade is genetically distinct from the clade including the remaining genera (Rivas Plata et al., 2011a). 
Description type:Original description 
Description:Ascomata elongate to (pseudo-)stromatic, very rarely rounded, immersed to sessile. Excipulum hyaline to carbonized, usually prosoplectenchymatous. Periphysoids absent. Columella structures absent. Hamathecium and asci non-amyloid or hamathecium amyloid in a few genera. Ascospores transversely septate to muriform, colorless to (grey-)brown, amyloid to non-amyloid, septa usually thickened, often reduced in muriform ascospores, lumina lens-shaped to rectangular. Secondary chemistry variable, but stictic and norstictic acids predominant. 
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