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 Add this item to the list  PHELLINUS CONTIGUUS (Fr.) Pat.
   
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Page number:153 
Description type:Non-original description 
Description:PHELLINUS CONTIGUUS (Fr.) Pat.
Ess. tax. p. 97, 1900 - Polyporus contiguus Fr. Syst. mycol. 1:378, 1821.
FRUITBODY perennial, resupinate, adnate, mostly elongated and effused, up to 20 cm long, 5 cm wide and up to 1 cm thick, smooth and even, or nodulose and undulated on oblique substrates with smooth sterile areas in between fertile poroid areas, spongy when fresh, hard when dry. PORE SURFACE reddish-brown, umber brown, often with a greyish pruina, margin mostly narrow, rusty brown and finely floccose, disappearing with age, pores angular, on average 23(4) per mm, often somewhat sinuous and irregular, especially on oblique substrates and then often split in front, up to 1 mm wide, along the margin often deeply split into a labyrinthine to irpicoid configuration, tubes indistictly stratified, up to 15 mm deep, usually with a greyish-brown pruina. CONTEXT very thin, rusty brown, up to 1 mm thick.
HYPHAL SYSTEM dimitic, generative hyphae thin-walled and hyaline, 2-3.5 µm, slightly thick-walled and pale yellowish in the subiculum and the floccose margin, skeletal hyphae yellowish to rusty brown, straight thick-walled and 3-5 µm wide with a distinct lumen. SETAE of two kinds a) tramal setae acute, tapering from the base, thick-walled and straight, often with a bent base, dark brown to light yellowish in the top, scattered and not always easy to find, occurring in the floccose margin and in the trama, 40-120 x 5-12 µm, b) hymenial setae very abundant, subulate, thick-walled, dark brown, and with a bent base, either terminal or more rarely lateral from generative hyphae, often with a bulbous base, projecting 15-25 µm above the hymenium (35)4060(65) x 6-10 µm. CYSTIDIOLS abundant, mostly as hyphal ends, partly embedded in the hymenium, partly projecting above it, but also as ventricose organs with a tube like upper part projecting above the hymenium, hyaline and thinwalled. SPORES oblong ellipsoid, hyaline, thin-walled, smooth, usually with a large oil-drop, non-amyloid and indextrinoid, 5-7 x 3-3.5 µm.
HABITAT. On dead wood, preferably on angiosperms. DISTRIBUTION. Known from warmer parts of all continents, quite common in Eastern Africa.
REMARKS. P. contiguus is recognized by its fairly large spores, the tramal setae and the large hymenial setae.
 
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