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Page number:515 
Remarks (public):The species is distinctive in Europe by its distinct southern distribution, the ungulate black and cracked basidiocarps with relatively large pores, strongly coloured globose spores and lack of setae. In the tropics the situation is far more confusing and numerous names have been proposed for this or strongly similar taxa. 
Description type:Non-original description 
Description:Phellinus rimosus (Berk.) Pilat, Ann. Mycol. 38:80, 1940. - Polyporus rimosus Berk., Lond. J. Bot. 4:54, 1845.
Basidiocarps pileate, perennial, pileate, solitary, mostly ungulate to triquetrous with a sloping pileus, semicircular and dimidiate with a contracted base, up to 12 cm wide and long 3-8 cm thick at the base, some specimens may even be larger, woody hard, margin sharp to rounded; upper surface at first more or less glabrous, except for a narrow marginal zone, fulvous to dark brown, smooth or with a few quite wide sulcate zones, somewhat warted or with irregular protuberances around the basal part, then the upper layer becomes indurated and black and the surface cracks up, both radially and along the sulcate zones and often in a tile-like way so very coarse black polygons of the surface become partly deflexed or bent upwards, finally the whole surface becomes cracked or creviced in black irregular polygons, often with a greyish bloom on the top, along the margin in such old specimens there is often a narrow, more smooth and light-coloured zone reflecting new growth; pore surface yellow-brown in actively growing specimens and then pores thin-walled, in older specimens the pores become more occluded and more round and with thicker walls, (3)4-5 per mm; context rusty to snuff brown, radially fibrillose, but fairly dense and with a fine lustrous sheen when broken, 0.5-3 cm thick; tube layers fulvous brown, mostly distinctly stratified, up to 7 cm thick, rather easily sectioned.
Hyphal system dimitic; generative hyphae variable, in the tubes 2.5-4.0 µm wide, thin-walled, yellow to pale rusty brown, simple-septate and moderately-branched, in the context there are also some hyphae with distinctly thickened septa and moderate branching, rusty brown, up to 7 µm in diam, with a wide lumen, they must be classified as generative hyphae and are very similar to many hyphae in the context without any trace of septation; skeletal hyphae 3-5 µm in diam, almost solid in the trama, in the context somewhat wider but mixed with simple-septate hyphae of the same kind, and it is difficult to be sure whether only one type of hypha is present in the context, i.e. variably scelerified generative hyphae with very scattered septa; in the material examined by us, it has been easier to differentiate the two types of hyphae in the trama than in the context.
Setae or other sterile hymenial elements absent.
Basidia broadly clavate, 4-sterigmate, 15-16 x 7-8 µm, simple septate at the base. Basidiospores abundantly present, broadly ellipsoid to subglobose, thick-walled, rusty brown, negative in Melzer's reagent, 5.5-7 x 4.5-6 µm.
Cultural characteristics and sexuality. Unknown.
Substrate. On dead and living hardwoods such as Arbutus, Robinia, Pistacia, Punica and Quercus. In tropical areas species of Fabaceae (in a wide sense) are the most common hosts. hosts, but also recorded on numerous other trees.
Distribution. In Europe known in the Mediterranean and Black Sea areas, widespread and common throughout Africa, Asia and Australia.
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