b: Cristataspora coffeata的担子果; c: Cristataspora flavipora的菌盖表面。标尺:1cm。引自Taxonomy and phylogeny of polypores with ganodermatoid basidiospores (Ganodermataceae)咖啡脊孢芝Cristataspora coffeata (Berk.) Robledo, Costa-Rezende & de Madrignac Bonzi 2020 异名: Amauroderma coffeatum (Berk.) Murrill 1905 Fomes augustus (Berk.) Cooke 1885 Fomes coffeatus (Berk.) Sacc. 1888 Fomes hemibaphus (Berk.) Cooke 1885 Ganoderma coffeatum (Berk.) J.S. Furtado 1967 Humphreya coffeata (Berk.) Steyaert 1972 Polyporus augustus Berk. 1856 Polyporus coffeatus Berk. 1839 Polyporus hemibaphus Berk. 1856 Scindalma coffeatum (Berk.) Kuntze 1898 Scindalma hemibaphum (Berk.) Kuntze 1898 子实体一年生,具中生柄,单生。菌盖圆形,略呈漏斗状,革质至木栓质;菌盖表面灰褐色,不具漆状光泽,具同心环状沟纹和皱起以及延伸至菌盖边缘的辐射状线条和不明显皱起;边缘锐,波状。菌孔面白色至奶油色;菌孔圆形;菌管灰褐色至浅褐色;菌肉奶油色,同质或具明显或不明显的黑色线;菌柄纤维质至木栓质,光滑,灰褐色,与菌盖菌肉同色,实心。 Cristataspora coffeata的担孢子电镜图(近光滑的外孢壁和具纵向排列的脊状突起纹饰的内孢壁)引自Taxonomy and phylogeny of polypores with ganodermatoid basidiospores (Ganodermataceae)分布:分布于阿根廷、古巴等新热带地区,中国没有分布 生态:生于地面,可能与地下腐木相连 讨论:该种原隶属于汉弗莱芝属,因其内孢壁具横向或纵向的脊状纹饰的形态学特征以及系统发育学分析高度支持其与C. flavipora成一单系群,故被转移至脊孢芝属中。新组合描述本种分布于新热带地区,我国过往文献记载本种在中国亦有分布,但与原始描述有出入,该种在我国可能没有分布。 相似物种:与C. flavipora较为相似,但其内孢壁脊状纹饰通常为横向分布,而本种内孢壁脊状纹饰通常为纵向排列。 新组合描述:
Basidiomata, annual, stipitate, mesopodal, solitary. Pileus up to 17 cm in diameter, 0.6–2.1 cm thick, circular, slightly infundibuliform, coriaceous to corky. Pilear surface dull, grayish brown, concentrically sulcate, wavy, radially striated and slightly wrinkled towards the margin. Margin entire, wavy and sharp. Context yellowish-white, fibrous, without black lines, 0.6–1.5 cm thick. Pore surface white to cream, pores circular, 4–5 per mm. Tubes grayish brown to pale brown, 0.8–1.5 cm thick. Stipe fibrous to corky, smooth, grayish brown, in section concolorous to pilear context, 14.5–17 cm length, 1.7– 2.8 cm in diameter, solid. Pileipellis composed of thick-walled hyphae, 5–15 μm in diameter, robust, cilindrical some with warts on the walls, golden yellowish brown, IKI-. Hyphal system di-trimitic in whole basidioma; composed of clamped generative hyphae, 3–5 μm in diameter, hyaline, thin walled; skeletal hyphae dichotomously to multiple branched, mainly with arboriform and skeleto-binding pattern, thick-walled, hyaline to yellowish, up to 6 μm in diameter, cyanophilous, IKI -. Basidiospores ellipsoidal to ovoid, 11–13 (–14) × 7–9 μm, truncated at the apex, double-walled, endospore ornamented with longitudinal ridges, either free or slightly anastomosed, yellowish brown or chestnut golden, cyanophilous, IKI- to slightly dextrinoid. Notes: The species is mainly characterized by stipitate basidiomata with a dull, brownish pilear surface, a pale context, and a di-trimitic hyphal system, composed of clamped generative hyphae, arboriform, and skeleto-binding hyphae. The basidiospores are ellipsoid to ovoid, 11–13(–14) × 7– 9 μm, truncated at the apex, double-walled, yellowish brown to chestnut golden, have an endospore ornamented with longitudinal ridges, and a cyanophilous reaction. In our observations, the pores are larger than in the description presented by Decock and Herrera-Figueroa (2007), 4–5 vs (6–) 7–8 (–9) pores/mm.