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Page number:27 
Description type:Non-original description 
Description:Echinochaete russiceps (Berk.& Br.) Reid. Fig. 6 Kew Bull. 17:285, 1963. Polyporus russiceps Berk. & Br., Jour. Linn. Soc. Bot. 14:48, 1873.
Basidiocarps annual, usually solitary, 2-6 cm wide and long, 1-4 mm thick, spathulate to flabelliform, narrowing behind to a flattened stipe-like base, 4-10 mm wide, consistency coriaceous to brittle; pileus whitish-pink when fresh, mostly reddish-brown to golden brown with an ochraceous tint when dry, minutely tomentose and often with dark, radiating lines and some dark, erect scales (more prominent when fresh); pore surface whitish when fresh, ochraceous-buff to dark-brown when dry, pores angular, 3-5 per mm, easily seen with the naked eye, dissepiments thin and papery, tubes up to 1.5 mm deep, concolorous with the pore surface; context up to 4 mm thick near the stipe, thin towards the margin, whitish when fresh, ochraceous buff when dry, usually paler than the tubes.
Hyphal system dimitic; generative hyphae hyaline, clamped and thin-walled, 2-3 µm in diameter; skeleto-binding hyphae dominating, yellow and thick-walled, 1-8 µm wide, contextual hyphae strongly dextrinoid when seen in clusters, dominated by skeletobinding hyphae up to 10 µm in diameter. Setoid elements thick-walled and golden brown, lanceolate, with a number of projecting spines near the apex, present in groups in the hymenium, but very scanty, up to 35 x 10 µm, also present on the pilear surface where they are extremely abundant, but larger and more lax than in the hymenium, up to 100 µm long, appearing as golden to darkbrown spinous hyphae. Basidiospores subcylindrical to ellipsoid, smooth, hyaline and thin-walled, 8-10 x 3.5-4.75 µm, non-amyloid.
Cultural characteristics. Unknown.
Substrata. On dead wood.
Distribution. Paleotropic species, rare in Africa and specimens only seen from Malawi and Kenya.
Remarks. The species is easily recognized by the small pores and the long and slender setoid elements with short to long protuberances near the apex.
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