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

Tylopilus neofelleus Hongo, Journ. of Jap. Bot. 42: 154. 1967.

 Description: Pileus 3-6 cm broad, pulvinate to broadly convex; surface distinctly tomentose, dry, subviscid when wet, smooth to occasionally rimose toward the margin when old; vinaceous-brown in color; context thick, white, but pinkish brown when exposed, often vinaceous-red around the larval tunnel, no odor but with a very bitter taste. Tube 0.6-1.2 cm deep, adnate, white in color, vinaceous-brown to yellow-brown when old. Pores 1-1.5 mm broad, circular to angular, usually elongate near the stipe. Stipe 3-6 cm long, 0.7-1.1 cm thick, equal or flared either above or below, or both, solid, surface dry, glabrous to subvelutinous, typically distinctly reticulate at apex; color pinkish brown to vinaceous, often with ochre red streaks, staining ding pinkish brown when handled; context firm, white, pinkish brown when cut. Spore deposit maroon, spores 11-14 × 4-5 μm, ellipsoid to narrowly subfusoid in face view, obscurely inequilateral in profile, smooth, thin-walled, with a slight suprahilar depression, pale melleous in KOH, hyaline in Melzer,s. Basidia 30-39 × 10-13 μm, clavate, thin-walled, with two or four spores, hyaline or pale gray in KOH, pale yellow in Melzer,s. Pleurocystidia 49-107 × 14-24 μm, scattering and numerous, fusoid-ventricose, often with an elongated neck and obtuse apex, with umbrinous contents. Cheilocystidia 33-43 × 13-17 μm, ventricose but obtuse at top, numerous, shorter and smaller than pleurocystidia under microscope, thin-walled, with dark fawn contents, pallid brown in KOH, dark fawn in Melzer,s. Pileus cutis of appressed hyphae, end cells ventricose and concentrating at the subacute apex, each 38-46 μm in length, 12-14 μm in diameter, with granular yellowish contents in KOH; lower cells mostly cylindrical and 12-14 μm broad with constricted septa. Hyphae in subcutis, 7-9 μm thick. Trama bilateral type. No clamps observed.

Taiwan, Chiayi: Da-Tung-Shan, alt. 1,500 m, 14 Jun 2002, Chen CM. 3246.

 Habitat: Scatter under broad-leaved forest.

Taiwan, China (Sichuan,Yunnan), Japan, New Guinea.


Chen, CM et al. 2004.


C. M. Chen

 Note: T. neofelleus is closely related to T. felleus (Bull.: Fr.) Karst. and T. plumbeoviolaceus (Snell) Snell et Dick. The three species are distinguishable in the field by differences in their morphological characters. T. felleus has a yellowish brown pileus with olive-gray color and distinct reticulation on its yellowish stipe, while T. plumbeoviolaceus has an olive-brown to avellaneous carpophore, and T. neofelleus has smaller spores and longer pleurocystidia, as compared to those of T. felleus. Also, spores of T. neofelleus are evidently longer (11-14 μm) than those of T. plumbeoviolaceus (7.5-9.5 μm) under micro-scopic examination .