Name: Ganoderma stipitatum
Author: (Murrill) Murrill
Citation: N. Amer. Fl. (New York) 9(2): 122 (1908)
Preferred Synonyms:Ganoderma parvulum Murrill
Ryvarden, L. 2004. Neotropical Polypores. Part 1. Introduction, Hymenochaetaceae and Ganodermataceae. Synopsis Fungorum. 19:1-227
Page number : 99
Remarks (internal) : The species is above all recognized by the dark resinous bands in the pale brown context, reminiscent of the core seen in Amauroderma. As usual in Ganoderma, its basidiocarps can vary considerably from sessile to laterally stipitate. The cuticle is difficult to crush and is rather thick especially on the stipe.
Description type : Non-original description
Description : Ganoderma stipitatum Murrill,
Bull. Torrey Bot. Cl. 30:229, 1903. – Ganoderma parvulum Murrill, N. Am. Fl. 9:123, 1908. – Ganoderma bibadiostriatum Steyaert, Bull. Jard. Bot. Belg. 31:99, 1962.
Basidiocarps perennial, pileate, circular, dimidiate with a contracted base to laterally stipitate, 5 × 10 × 1 cm; upper surface flat, sulcate, glabrous, laccate with a distinct cuticle in section, at first reddish then reddish brown to bay or chestnut brown to almost black, dull, covered with a relatively hard black cuticle, pore surface creamy white at first, later ochraceous to pale brown or black, stipe when present, lateral, short and rarely above 3 cm long and black or at least darker than the upper surface of the pileus, pores angular to circular, about 4-5 per mm; tubes concolorous with pore surface, up to 5 mm thick, context with one or two black dense bands originating at the bottom of the stipe or base of the basidiocarp and extending to about 1 cm from the margin, the lower part of context dark brown, darker than the intermediate and upper paler brown part, context up to 6 mm thick at the base;
Hyphal system dimitic; generative hyphae hyaline, thin-walled, with clamps, 2-3 ?m in diam, difficult to observe in dried specimens; skeletal hyphae abundant, thick-walled, yellowish brown and arboriform, 3-6 ?m in diam.
Cuticle a palisade of hyphal ends, yellowish brown, thick-walled to solid, clavate, occasionally with some scattered outgrowths, smooth, distinctly amyloid in the apical part, 20- 40 × 6-10 ?m.
Basidia not seen.
Basidiospores ellipsoid, brown, 7-9.5 × 5-6.5 ?m.
Substrata. Numerous hardwoods.
Distribution. Widespread in the neotropics from Nicaragua, Costa Rica, Surinam, Bolivia, Brazil, Peru and Venezuela.
Created: 2011-06-26 15:39:46 PDT (-0700) by Darvin DeShazer (darv)
Last modified: 2014-08-26 12:18:41 PDT (-0700) by Erlon Bailey (Herbert Baker)
Viewed: 94 times, last viewed: 2020-05-23 03:09:59 PDT (-0700)