Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Boletales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Tylopilus badiceps

Basionym: Boletus badiceps Peck, Torrey Club Bull. 27 : 18. 1900.

Tylopilus badiceps (Pk.) Smith & Thiers, The Boletes of Michigan p. 122. 1971.

 Description: Pileus 4-8.5 cm broad, convex to somewhat centrally depressed when mature, dry, velvety, obliquely truncate on the margin, dark maroon. Context white, unchanging when cut, taste mild sweet. Tubes plane, adnate, whitish, becoming dingy with age. Pores minute, 0.7 mm broad, concolorous with tubes. Stipe 4-5 cm long, 1.5-3 cm broad, equal or slightly swollen in the middle, clavate, glabrous, solid, surface brownish. Spore print dark vinaceous .Spores 10.5-13 × 4-4.5 μm, smooth, walls 0.2 μm thick, narrowly elliptic or subelliptic in face view, with conspicuous suprahilar depression, hyaline to yellwish in KOH, yellowish in Melzer,s. Basidia 28 -34 × 10-12 μm, hyaline in KOH, sterigmata four, 4-6 μm long. Pleurocystidia 27 - 33 × 7-9 μm, abundant, narrowly ventricose-rostrate to clavate-rostrate. Cheilocystidia abundant and prominent, similar to pleurocystida but usually larger and walls distinctly yel-lowish in KOH. Pileocystida 28-42 × 7-11 μm, forming a compact palisade, obtusely fusoid-ventricose varying toward utriform or subclavate-mucronate to clavate. The content yellowish in KOH but soon dissolving into the mount.

Taiwan, Taichung: Hsin-she, alt. 800 m, 8 June 1995, Huang HW. 1173.

 Habitat: Scattered under Diospyros morrisiana Hance in Walp.

Taiwan, China, North America.


Chen, CM and Peng JJ. 1998.


C. M. Chen

 Note: This spccies is one of the most easily recognizd species in genus Tylopilus. It has the aspect of T. rubrobrunneus Mazzer & Smith but is readily distinct because of its small spores and mild taste, conspicuous cheilocystidia and turf of pileocystidia as a cuticle over the pileus.