Poroid Hymenochaetaceae from Guineo–Congolian rainforest: Phellinus gabonensis sp. nov. from Gabon – taxonomy and phylogenetic relationships

Abstract

Phellinus gabonensis sp. nov. is described and illustrated on the basis of several collections made in three protected areas of primary rain forest in the western edge of the Guineo-Congolian center of endemism, in Gabon. The species is characterized by resupinate, perennial basidiomes, numerous, straight to commonly apically hooked hymenial setae, and ellipsoid to broadly ellipsoid, thin-to thick-walled, hyaline to yellowish basidiospores. Both the morphology and the phylogenetic inferences based on partial nuc-LSU relate this species to Ph. caribaeo-quercicolus.

Phellinus castanopsidis sp. nov. (Hymenochaetaceae) from southern China, with preliminary phylogeny based on rDNA sequences

“…Dai from Fujian Province (Cui and Dai 2008), and F. ellipsoidea produces larger and perennial basidiomata on dead fallen trunk . This combination of macromorphology is also common for Phellinus gabonensis Decock & Yombiyeni from Central Africa (Yombiyeni et al 2011), and for P. caribaeo-quercicolus Decock & S. Herrera from the Caribbean area (Decock et al 2006), however, both P. gabonensis and P. caribaeo-quercicolus differ in absence of dextrinoid basidiospores.…”

“…However, P. ellipsoideus is separated by its perennial growth habit, yellowish brown to rust brown pore surface, and slightly smaller basidiospores (4.9-6×3.9-4.8 μm, L05.26 μm, W04.14 μm; Cui and Dai 2008). P. gabonensis was described from central Africa, and it differs in having perennial growth habit, effused to cushion-shaped basidiocarps, slightly smaller and faintly yellowish basidiospores (4.5-5.5×3.5-4.3 μm, Yombiyeni et al 2011).…”

“…The taxa sampled in the phylogenetic analysis, except those newly obtained from this study, were chosen according to Wagner and Fischer (2002); Decock et al (2006); Yombiyeni et al (2011);Zhou and Xue (2012); and sequences data were downloaded from GenBank (Table 1). The sequences of Fomes fomentarius (L.) J.J. Kickx obtained from GenBank was used as outgroup (Yombiyeni et al 2011).…”

“…The sequences of Fomes fomentarius (L.) J.J. Kickx obtained from GenBank was used as outgroup (Yombiyeni et al 2011). Sequences were aligned with BioEdit (Hall 1999) and ClustalX (Thomson et al 1997).…”

Hymenochaetaceae from the Guineo-Congolian rainforest: three new species ofPhylloporiabased on morphological, DNA sequences and ecological data

“…Taxonomic knowledge of the Hymenochaetaceae in the botanically rich Guineo-Congolian phytogeographic region in central Africa (also known as Guineo-Congolian regional center of endemism; White 1979White , 1983) remains fragmentary and critically understudied (Ryvarden 1998(Ryvarden , 2000Yombiyeni et al 2011). As far as Phylloporia is concerned, seven species are known from tropical Africa: P. chrysites, P. fruticum, P. minutispora, P. parasitica, P. pectinata, P. spathulata and P. weberiana (Ryvarden and Johansen 1980, Hjortstam et al 1993, Núñez and Daniëls 1999, Ryvarden 2000, Wagner and Ryvarden 2002, Ipulet and Ryvarden 2005, Roberts and Ryvarden 2006.…”