554 GYROPOBUS. TYLOPILUS 



angular. Flesh white, becoming deep indigo blue on exposure to the air, 

 spongy, thick at the disc, thin at the margin of the p. Spores white, 

 pip-shaped, 8-9 x 4-5/i, 3-5-guttulate. Woods. Aug. Oct. Un- 

 common, (v.v.) 



1830. G. castaneus (Bull.) Quel. (= Boletus castaneus (Bull.) Fr. ; 

 Gyroporus fulvidus (Fr.) Pat. sec. Quel.) Holland, Champ, 

 t. 79, no. 177. Castanea, chestnut. 



P. 5-10 cm., cinnamon, or chestnut coloured, convex, then expanded, 

 or depressed, firm, minutely velvety. St. 5-7 x 2-3 cm., concolorous, 

 attenuated upwards from the somewhat bulbous base, minutely velvety, 

 stuffed, then hollow. Tubes white, becoming yellowish, free, short; 

 orifice of pores white, then yellowish, minute, round. Flesh white, very 

 firm. Spores white, or pale yellow, elliptical, 8-9 x 5-6 /u,, often 1- 

 guttulate. Taste pleasant, nutty. Edible. Woods, rarely in pastures 

 under trees. Aug. Oct. Not uncommon, (v.v.) 



1831. G. fulvidus (Fr.) Pat. (= Boktus fulvidus Fr. ; Gyroporus casta- 

 neus (Bull.) Quel.) Rostk. Bol. t. 45, as Boktus fulvidus Fr. 



Fulvidus, somewhat tawny. 



P. 5-9 cm., becoming tawny, convex, then plane, rigid, firm, smooth, 

 shining. St. 47 x 1-5-2*5 cm., concolorous, equal, firm, smooth, 

 shining, stuffed, then hollow. Tubes white, then citron yellow, free, 

 elongated; orifice of pores white, then lemon yellow, angular. Flesh 

 white, becoming yellowish, firm. Spores "yellowish, elliptic- oblong, 

 10-11 x 5/u" Massee. Taste pleasant. Edible. Heaths, and under 

 trees. Aug. Sept. Uncommon. 



Spores pink. 

 Tylopilus Karst (= Boletus p.p.). 



(rv\o<;, a knot; TrtXo?, cap.) 



Pileus villose, or glabrescent. Stem central, reticulate, apex granular, 

 or smooth. Tubes white, then pinkish, adnate, or sinuate, long, or 

 short; orifice of pores concolorous, angular, or round. Flesh un- 

 changeable, or slightly pinkish when exposed to the air. Spores pink, 

 fusiform, or oblong, smooth. Growing on the ground. 



1832. T. felleus (BuU.) Karst. (= Boletus felkus (Bull.) Fr.) Rostk. 

 Bol. t. 43, as Boletus felkus Bull. Fel, gall. 



P. 6-10 cm., pak yellowish, chestnut, or tawny, pulvinate, or hemi- 

 spherical, then expanded, fleshy, smooth. St. 7-8 x 2-3 cm., con- 

 colorous, attenuated upwards from the thickened base, tomentosely 

 reticulated. Tubes white, then flesh colour, adnate, convex, long; orifice 

 of pores white, then pinkish, fairly broad, angular. Flesh white, be- 

 coming flesh colour, thick, soft. Spores pink, fusiform, or oblong, 

 12-14 x 3-4-5/Lt, 2-3-guttulate. Taste very Utter. Poisonous. Woods, 

 especially on calcareous soil. July Dec. Not uncommon, (v.v.) 



