Foraminispora rugosa的菌盖表面和菌孔面。标尺：1-2: 20mm，3-4: 40mm，5-6: 70mm。来源：Taxonomy and phylogeny of polypores with ganodermatoid basidiospores (Ganodermataceae)环皱空洞孢芝Foraminispora rugosa (Berk.) Costa-Rez., Drechsler-Santos & Robledo 2017 异名： Amauroderma avellaneum Murrill 1908 Amauroderma dubiopansum (Lloyd) Ryvarden 2004 Amauroderma dubiopansum (Lloyd) Dennis 1970 Amauroderma sprucei (Pat.) Torrend, Brotéria 1920 Ganoderma avellaneum (Murrill) Sacc. & Trotter 1912 Ganoderma sprucei Pat. 1894 Polyporus dubiopansus Lloyd 1912 Porotheleum rugosum Berk. 1856 子实体一年生，具中生或侧生柄，软木栓质。菌盖圆形或半圆形、扇形至匙形，平展；菌盖表面灰巧克力褐色至暗褐色，不具漆状光泽，光滑，具明显或不明显的同心环状沟纹和辐射状皱起；边缘锐，波状，与菌盖同色。菌孔面新鲜时橘色，干燥时浅橘色；菌孔圆形，较小；管壁厚；菌管新鲜时白色至浅橘色，干燥时近白色至浅奶油色、灰橙色；菌肉白色至奶油色、浅灰褐色，同质；菌柄圆柱形，光滑，褐色至暗褐色，菌柄基部略膨大，实心。 分布：分布于巴西、阿根廷、法属圭亚那等新热带地区，中国没有分布 生态：生于地面或生于阔叶树腐木桩 营养类型：腐生Saprotrophic 讨论：此种原隶属于假芝属，因其具孔洞的外孢壁这一奇特超微特征特征以及系统发育学分析高度支持其单独成一支系，故被转移至新成立的空洞孢芝属中。 描述：
Basidiocarp stipitate, pleuro- or mesopodal. Stipe short, thin to thick, more or less round in section or slightly ellipsoid, 31-40 mm long × 3.5-22 mm wide at the occasionally slightly bulbous base, down to 5-14 mm at the apex, smooth, glabrous, covered by a hard, horny crust, brown to dark brown (mainly chocolate brown, 6E6 but up to 6F6). Pileus laterally, centrally or eccentrically attached to the stipe, spathulate, flabelliform, semicircular to dimidiate, up to 20-60 mm long, 30-90 mm wide, or circular, slightly ellipsoid, to irregular in shape, and up to (28)36-135 mm diam., applanate, horizontal, to somewhat campanulate in section, occasionally slightly umbonate at the centre, 9-15 mm thick at the base/centre, down to 1-2 mm thick at the margin. Pileus surface slightly to distinctly concentrically sulcate and radially wrinkled, dull, glabrous, covered by a crust, homogeneously brown all over the surface (chocolate brown (6E5-6), cocoa brown), greyish chocolate brown, up to dark brown (toward 6F6), or commonly with narrow to medium size, concentric, darker bands, dark brown up to blackish brown (6F5-6)) to blackish, larger and darker near the base or at the centre, rarely with a tint of reddish (7F6), occasionally paler, pale corky (4B3, 5B4, greyish orange) near the margin. Margin sharp to abruptly bent, creamy, pale corky, or concolorous with the pileus, chocolate brown. Pore surface in variable orange tint when fresh, from very pale orange, almost white, to bright orange, cadmium orange (5A8, to more commonly deep orange, carrot red, orange peel (6AB7-8), drying paler, whitish, pale orange white (6A3), greyish orange (5B4-5), or darker, near brick red or dirty brownish orange (6BC5-6, 6D5-7). Pores round, even, small, (6)7-8/mm, (85)95-147(170) µm diam. (› = 114 µm diam.). Dissepiments thick, smooth or with a slightly pruinose aspect. Trama of the stipe usually homogeneous, with a corky consistency, a fibrous texture when fresh, or heterogeneous, with the centre slightly hollowed or having a looser consistency, which is more obvious near the base, then shrinking on drying, white, whitish, and drying whitish, pale creamy, faintly pale greyish brown near the surface (the crust). Trama of the pileus 3-14 mm thick at the centre or base down to 1-3 mm thick at the margin, homogeneous, with a hard corky consistency, a fibrous texture, white, whitish, and drying whitish, pale creamy, faintly pale greyish brown near the crust. Tube layer single, 2-9 mm thick, white to pale orange when fresh, drying off-white, pale creamy, greyish orange (5B4, 6B4), light brown (6CD6-7), reddish golden, light brown), with a harder consistency, up to hard resinaceous, and a denser fibrous texture. Crust on the stipe and pileus, hard, horny, dark brown to blackish brown, 50-200 µm thick. Hyphal system di-trimitic in the context and the trama of the tubes. Generative hyphae thin-walled, clamped. Vegetative hyphae in all part of the basidiome hyaline, strongly dextrinoid, cyanophilous. Stipe and Context of a similar composition. Trama of the tubes dimitic with generative and hyaline arboriform skeletal hyphae. Mature basidia not seen. Basidiospores subglobose to globose, double-walled, the endospore thick-walled, faintly yellowish, slightly dextrinoid, cyanophilous, with conspicuous fine, cylindrical endosporic projections, the exospore hyaline, thin, negative in Melzer’s reagent not cyanophilous, the endo-exosporic space 0.5-0.8 µm thick, (6.8)7.5-9.8(10.3) × (6.5)7.0-9.0(9.5) µm, R = (1.0)1.1-1.2(1.2) (› = 8.6 × 7.8 µm, › = 1.1). Chlamydospores absent. Substrate. On soil, or wood (buried wood?). Type of rot. A white rot (positive reaction with ABTS in pure culture). Sexuality. Unknown. In pure culture, the species produce on malt agar a bright orange mycelium, up to brick red with age.
