Search on : Taxa descriptions

 


 
 Add this item to the list  PHELLINUS GILVUS (Schw.) Pat.
   
Literature:
 
Page number:166 
Description type:Non-original description 
Description:PHELLINUS GILVUS (Schw.) Pat.
Essai tax. p. 97, 1900. - Boletus gilvus Schw. Fungi Carol. Super. 11:70, 1822 (K!). - Polyporus scruposus Fr. Epicr. p. 473, 1838 (UPS!). - Polyporus spurcus Lv. Ann. Sci. Nat. ser 3, Vol 5:135, 1846 (PC!). - Polyporus licnoides Mont. Ibid. ser. 2 vol. 13:204 (PC:). Trametes pertusa Fr. Kungl. Vetensk. Akad. Handl. 1848:130, 1848 (S!). - Polyporus holosclerus Berk. Lond. J. Bot. 6:501, 1847 (K!). - Polyporus breviporus Cooke. Grevillea 12:17, 1883 (K;). - Polyporus hookeri Berk.
ex Lloyd Syn. Sect. Apus Lloyd mycol. Writ. 4:348, 1915 (K!). - Polyporus isidioides Berk. Hook. Lond. J. Bot. 2:515, 1843 (K!). - Polyporus illicola Henn. Engl. Bot. Jahrb. 32:39, 1902 (teste Wakef. in Kew Herb.). Forces taxodii Murr. Torrey bot. Cl. Bull. 65:661, 1939 (acc. to the description).
FRUITBODY perennial, solitary, imbricate, pileate broadly attached to effused reflexed, consistency weakly coriaceous in thin specimens, firm and woody hard in thick ones. PILEUS dimidiate to semicircular, up to 14 cm broad and 8 cm wide, 3-20 mm thick near the base, flat to weakly convex, upper surface very variable in colour, golden-yellow to cinnamon near, the margin in' growing specimens, darkening to fuscous, bay to pale chestnut usually with a distinct reddish tint especially near the base and then with a thin crust of agglutinated hyphae, azonate or moderately zoned, sometimes weakly to strongly hispid with tufted skeletal hyphae becoming radially agglutinated (var. scruposus) and then without any crust, first finely velutinate soon glabrous smooth to finely to densely warted or with irregular low protuberances. Margin thin to rather thick, acute to blunt. PORE SURFACE fulvous to fuscous, usually with purplish tint, pores round and regular, 5-7 per mm, dissepiments entire and relatively thick, tubes more fulvous to ferruginous, single-layered or in several strata, each layer 2-5 mm thick, sterile margin almost absent to several mm broad. CONTEXT fulvous to cinnamon, shiny, up to 7 mm thick, but usually 2-3 mm, homogeneous, sometimes with a thin basal cuticle in older specimens.
HYPHAL SYSTEM dimitic, generative hyphae in tubes and context hyaline to pale yellow, thin to weakly thick-walled, simple septate, sparsely branched, 2-3 µm wide, often collapsed. Skeletal hyphae yellow to bay, more thick-walled, up to 5 µm wide in the tubes, thicker in the context. SETAE frequent, ventricose to subulate, acute thick-walled and dark ferruginous, 20-45 x 6-11 µm, often projecting beyond the hymenium. SPORES oblong to narrowly ellipsoid, hyaline to pale yellow, smooth and thin-walled, 4-5 x (2.7)3-3.5(4) µm, often partly collapsed.
HABITAT. On living and dead angiosperms. DISTRIBUTION. Pantropical and into warmer parts of the temperate zone. It is common in East Africa.
REMARKS. Corner (1932) notes two varieties var. scruposus based on the pilear surface and var. licnoides based on thin fruitbodies, reddish-brown zones on the pileus and tropical distribution. P. gilvus is characterized by the thin pileus, upper surface with a distinct reddish tint, glabrous often finely to densely warted, the purplish-brown pore layer, abundant long setae, and narrow ellipsoid spores.
 
Taxon name: