Search on : Taxa descriptions


 Add this item to the list  PHELLINUS PUNCTATUS (Fr.) Pilat.
Page number:201 
Description type:Non-original description 
Description:PHELLINUS PUNCTATUS (Fr.) Pilat.
Atl. Champ. Europe. 3:530, 1942. - Polyporus punctatus Fr. Hym. Eur. p. 572, 1874.
FRUITBODY perennial, resupinate, effused, mostly elongated and cushion formed to pulvinate, distinctly thickened in center, up to 3 cm thick in old specimens, woody hard. PORE SURFACE smooth, greyish-brown to ochraceous and somewhat shiny when actively growing, first more or less flat with a light brown, finely velutinate margin, with age the pore surface recedes slowly leaving a greyish to almost black, smooth margin which becomes steep as fruitbody thickens with age, when old and dry often cracked from the margin which partly loosened in dry specimens, pores round and small, 5-6 per mm, mostly oblique, tubes distinctly stratified, 1-3 mm in each layer, usually with a thin intermittent layer of mycelium, tubes up to 3 cm thick. CONTEXT cinnamon, very thin and almost absent in old and thick specimens.
HYPHAL SYSTEM dimitic, generative hyphae hyaline to light yellowish, thin-walled to slightly thick-walled, simple septate, 3-5 µm wide, skeletal hyphae thick-walled with a distinct lumen, straight, rusty brown to yellowish, 3-5 µm wide. SETAE none. CYSTIDIOLS present in the hymenium, thin-walled, hyaline, tapering and acute or ventricose with a tubular tip slightly projecting beyond the hymenium, their
number is quite variable and they are often quite difficult to observe, especially in old and dry specimens. SPORES subglobose, first hyaline and thin-walled, when mature thick-walled and light yellowish, strongly dextrinoid, 6-7.5 x 5-7 µm, (in KOH) slightly smaller when measured in Melzer.
HABITAT. On standing and fallen branches and trunks of deciduous trees. DISTRIBUTION. Probably pan tropic, but reaches far north into the temperate zone, in Europe it has a continental distribution. It seems to be widespread in East Africa.
REMARKS. The main characteristics are the resupinate often cushion-shaped fruitbody, the lack of setae, presence of hyaline cystidiols and dextrinoid subglobose spores.
Taxon name: