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Literature:
 
Page number:139 
Description type:Non-original description 
Description:Trametes rhodophaea (Lév.) comb. nov. Plate 3 Polyporus rhodophaeus Lév., Ann. Sci. nat. ser. 3, 2 (1844) 190; Bresadola, Hedwigia 53 (1912) 46; Bakshi (1971) 119.
Fomitopsis rhodophaea (Lév.) Imazeki, Bull. Tokyo Sci. Mus. 6 (1943) 92; Ryvarden and Johansen (1980) 340.
Polyporus cinereofuscus Currey (1874), fide Bresadola. Polyporus zonalis var. semilaccatus Berk. (1878), fide Bresadola. Fomes semilaccatus (Berk.) Cooke, Grevillea 15 (1886) 22, fide Bresadola. - Polyporus semilaccatus (Berk.) Petch, Ann. r. bot. Gdn Peradeniya 6 (1916) 87. Polyporus retro-ater C.G. Lloyd, Myc. Writ. 7 (1922) 1112.
Pileus -11.5 cm in radius, 16 cm wide, usually sessile, dimidate with a short resupinate foot -1 cm in radius, often shortly effuso-reflexed, the pilei fusing laterally into long flanges, slightly ascending, but sometimes pleuropodal with a stem -35 x 30 mm when growing from an upper surface, matt or minutely pubescent, becoming glabrous, irregularly rugulose or subtuberculate towards the base, faintly sulcate but occasionally strongly, at first dingy whitish to dingy ochraceous, then fawn buff, pale cinnamon buff, fawn brown or madder brown, often with a vinaceous tinge, paler towards the margin, with narrow darker and often faint zones, becoming fuscous to dull black from the base outwards, the blackening part often sharply delimited, finally wholly dull black, weathering drab grey with subfuscous zones in perennial fruit-bodies; margin obtuse and tumid to subacute, entire, white, occasionally lobed in old specimens. Tubes 1-2 mm long in the first season, sometimes -4 mm, 0.3-1 mm at 5 mm from the margin of the pileus, developing 2-3 more layers each 1-1.5 mm thick and often separated by a thin layer of flesh 0.2-0.5 mm thick, up to 6 mm long overall, cinnamon vinaceous to dark vinaceous brown, darker than the flesh; pores 60-90 µm wide, dissepiments 40-150 µm thick, round, rarely subangular, entire, white becoming brownish drab, vinaceous drab or greyish from the base of the pileus outwards, finally fuscous black. Flesh usually 2.5-10 mm thick at the base of the pileus, in some cases -18 or 25 mm in imbricate pilei, 1.55 mm at 5 mm from the margin, 0.5-2 mm thick in the resupinate part, corky, very compact and tough, drying woody and closely felted, at first pale wood-colour or nearly pallid white becoming cinnamon vinaceous to dark vinaceous brown, with a thin hard darker subcrustaceous layer 100-600 µm thick at the surface. Smell rather strong, farinaceous.
On dead fallen trunks in the forest, rarely in secondary forest, lowland and montane -1300 m alt. South east Asia, common in the Malay Peninsula.
Spores 4-4.5 x 3-3.5 µm, white, subglobose or broadly ellipsoid, smooth, thinwalled, with oleaginous contents when dried (?I -guttate when fresh), inamyloid. Basidia? Hymenium composed of closely set cylindric, often slightly roughened, ends of skeletal and binding hyphae c. 3 µm wide. Cystidia and hyphal pegs none. Hyphae trimitic, clamped, not encrusted, not dextrinoid, scarcely swelling in potash; skeletals 4-7 µm wide in the flesh, with very thick pale vinaceous brown and glassy walls, lumen linear or obliterated, aseptate, unbranched, unlimited, 2.5-3 µm wide in the dissepiments with many crystals 5-12 µm wide; binding hyphae 1-3 µm wide, not coralloid, scattered in the flesh and mainly near its upper and lower surfaces; generative hyphae 1-3.5 µm wide, clamped, thin-walled, abundant but very transparent. Surface of pileus with the ends of skeletal hyphae dressed into a fairly regular palisade 50-100 µm high with their tips cylindric, subclavate or shortly constricted below the apex, soon invaded by generative and binding hyphae and leaving the tips of the skeletals free for lengths of 10-70 µm, then overtopping the skeletals and forming a thinly levigate layer, the walls of the invading hyphae turning brown and becoming slightly agglutinated, the agglutination extending inwards to give the dark subcrustaceous layer, not encrusted.
Collections: Sing. F.N. 5650 (type number of P. retro-ater Lloyd); Sing. F.N. 23179 and 24474, det. Fomes semilaccatus by E.M. Wakefield; Ridley 59, det. Polystictus vinosus Cke.
Misidentifications (det. P. semilaccatus): Sing. F.N. 8830 is a species near to Tr. tennis; Sing. F.N. 8840 is probably Tyromyces ostreiformis; Sing. F.N. 19753 is Tr. dochmia.
This description is drawn from living specimens collected in the Malay Peninsula. It agrees well with that of Petch for P. semilaccatus in Ceylon. Bresadola reduced Berkeley's taxon to P. rhodophaeus Lév., and it is given as a synonym by Ryvarden. However, it hardly agrees with the description of Ryvarden and Johansen who give the flesh as ochraceous to light fulvous and the pores as ochraceous of buff woodcolour, often with a greyish tint. These points may refer to Tr. aurora Ces. which they cite as another synonym, but not to P. semilaccatus. I place the species in Trametes where it is related with Tr. feei and Tr. scopulosa. The hyphal ends entering the tubes suggest the catahymenial construction of Daedalea. The subglobose to broadly ellipsoid spores are those of Mollicarpus.
The colour of living fruit-bodies is drab and dirty. The pileus becomes somewhat vinaceous brown and blackens from the base. The pores soon become dirty brownish and may also blacken. Thus, old fruit-bodies are scarcely recognisable until examined microscopically. Fruit-bodies are more commonly found in the first season of growth with short tubes and such, in my experience, yield no spore-print. Perennial states, with 3-4 layers of tubes, are uncommon but, usually, fertile. I have seen no older specimens, and 3-4 layers of tubes in the Malay Peninsula means 3-4 seasons at 2 seasons a year; the fruit-bodies seem biennial rather than perennial. The thick-walled glassy skeletal hyphae, the lack of incrustation in the crust on the pileus, and the crystals that occur in the dissepiments are characteristic. Tyromyces ochraceivinosus can be mistaken for Tr. rhodophaea but it is dimitic with narrower skeletals and has obtusely allantoid spores which place it nearer to Nigroporus vinosus. The dimitic Loweporus fuscopurpureus has dark brown flesh and tubes.
 
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