(The macroscopical characteristics, the hyphal system and the setae are identical in the two species. Until fertile specimens have been collected in Brazil and proved to have different spores from those described here, the two names are treated as belonging to the same taxon. The species is related to P. johnsonianus which is chiefly separated by larger setae (20-30 μm long). P. glaucescens Petch described from Sri Lanka comes also very close to the species described here. The spores are slightly larger while the setae are identical as are the pore size and the hyphal system. It may be that this is a pantropical species where we have to accept a slight variation in the microscopical characteristics. The resupinate, small-pored Phellinus-species with sub-globose spores and medium-sized setae, is a difficult group and more collections are needed before their inter-relationship can be settled.) The macroscopical characteristics, the hyphal system and the setae are identical in the two species. Until fertile specimens have been collected in Brazil and proved to have different spores from those described here, the two names are treated as belonging to the same taxon. The species is related to P. johnsonianus which is chiefly separated by larger setae (20-30 μm long). P. glaucescens Petch described from Sri Lanka comes also very close to the species described here. The spores are slightly larger while the setae are identical as are the pore size and the hyphal system. It may be that this is a pantropical species where we have to accept a slight variation in the microscopical characteristics. The resupinate, small-pored Phellinus-species with sub-globose spores and medium-sized setae, is a difficult group and more collections are needed before their inter-relationship can be settled.[2]
(1-2 layers each 2-5 mm thick, with or without a thin intervening layer of flesh, totalling up to 16 mm thick) 1-2 layers each 2-5 mm thick, with or without a thin intervening layer of flesh, totalling up to 16 mm thick[1]
This is my description of Malayan material. The fruit-body is truly resupinate because it does not form pilei on ascending surfaces. The very small spores, the abundant small setae, the d2 construction, and the basal crust of incrustation are characteristic. Thus it agrees with the description of Ryvarden and Johansen, though the tubes are longer. David and Rajchenberg rejected the name Ph. ferrugineovelutinus as a nomen ambiguum because the type is sterile, but many tropical fungi would lose their first names if this idea was generally adopted. They also give Ph. glaucescens (Petch) Ryv. as a synonym, which is not my understanding of either species. Larsen and Cobb-Pulle substitute Ph. tropicalis for the later homonym.[1]
Notice: The data in the table above is semi-automatically extracted from the description. Please be sure to check the original documents for accurate information.