Phylum：Basidiomycota　>>　Class： Basidiomycetes　>>　 Order： Boletales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Boletus ornatipes
 
   
   
　Author：

Boletus ornatipes Peck, Ann. Rept. N.Y. St. Mus. 29:67. 1878.

Basionym: Suillus ornatipes Kuntze, Rev. Gen. Pl. 3:536. 1898.
   
 
 
 
 
　Description： Pileus 5-11 cm broad, pulvinate to convex, expanding to nearly plane, surface dull and minutely tomentose, when moist subviscid to the touch, color fuscous when young, later becoming dark olive-gray in age. Context 0.7-1.3 cm thick, chrome-yellow, taste slightly bitterish, with FeSO4 no reaction, with KOH bleaching the yellow to a paler tone. Tubes 5-9 mm long, adnate to subdecurrent, lemon-yellow staining orange-yellow. Pores small, 1-2 mm broad, lemon-yellow staining orange-brown when bruised. Stipe 5-9 cm long, 0.9-1.5 cm thick, equal to narrowly clavate, solid, chrome-yellow throughout, becoming dingy yellow-brown where bruised, surface lacerate-reticulate to base, yellow overall. Spore print dark yellow-brown. Spores 14-15 × 5-6.5 μm, fusiform wiith apex obtuse. Basidia 24-33 × 11-13 μm, cylindrical, sterigmata four, 5-5.5μm long, hyaline to yellowish in KOH. Pleurocystidia 90-115 × 12-16 μm, ventricose-rostrate, abundant, thin-walled, surface smooth, as revived in KOH with a strongly pigmented, ochraceous, amorphous mass occupying most of the ventricose part and in Melzer's this body strongly dextckrinoid. Tube trama gelatinous, divergent from a central strand.
 
 
 
 
 
　Specimens：

Taiwan, Nantou: Shanlinhsi, alt. 1750 m, 1 June 1994, Huang HW. 184.
 
 
 
　Habitat： Solitary under broad-leaved forest.
 
 
 
　Distribution：

Taiwan, China (Yunnan, Fujian, Yhainan Island), Japan, North America.
 
 
 
　References：

Peck, CH. 1878; Singer, R. 1947; Chen, CM et al. 1997.
   
   
   
　Provided：

C. M. Chen
 
 
　Note： This species may be confused at times with B. griseus in age. Both context and tubes of B. ornatipes always yellow form the beginning of carpophoral formation. But the tubes of B. griseus is whitish at first and reticulation of stipes is relative inconspicuous. Therefore Peck (1878) recognized both as distinct species. The other side Singer (1947) regarded this species as B.retipes or Pulveroboletus retipes. For the latter twos, original description, the pileus should be “sicco, luteo-pulverulento”, that is a condition do not be seen in this specimen. So we consider this specimen B. ornatipes appropriately.