290 



FUNGUS-FLORA. 



Boletus purpureus, Fries, Bol., p. 11 ; Hym. Eur., p. 511 ; 

 Cke., Hdbk., p. 258. 



In woods. Distinguished by the deep purple-red pileus 

 and the purple or orange-red openings of the tubes. Fries 

 says that the apex of the stem is sometimes reticulated. Dis- 

 tinguished from Boletus purpurascens by the red or purple 

 mouths of the tubes. A very fine form of the present species 

 was collected at Morpeth in Cumberland, presenting the fol- 

 lowing characters : Pileus 4 in. across, convex then plane, 

 rather flexuous, margin slightly exceeding the tubes and in- 

 curved, very minutely tomentose, reddish-purple, flesh about 

 in. thick, thinner towards the margin, yellow, unchange- 

 able ; tubes free from the stem, ventricose, ^ in. long, yel- 

 lowish-olive, becoming blue when cut, openings irregular, 

 circular and about ^ mm. across, or elongated up to 1 mm., 

 edges of dissepiments deep orange ; stem 3 in. long, equal, 

 but attenuated at extreme base, ground yellow, but densely 

 covered with purple spots and lines, solid, flesh yellow above, 

 becoming blue when cut, deep purple downwards ; spores 

 olive, elliptical, 9 x 5 /x. 



C. Tubes red throughout their length. 



Boletus rubirms. W. G. Smith. 



Pileus 2-3 in. across, gibbous, convex, when old often 

 nearly plane, dry, minutely tomentose, often slightly cracked, 

 pale yellow-brown ; tubes subdecurrent, about ^ in. long, 

 wholly clear carmine, openings subangular, compound, about 

 ^ mm. diameter; stem 1^-3 in. long, i f in. thick, solid, 

 yellow more or less streaked or smeared with carmine, or 

 sometimes entirely red, flesh, like that of the pileus, clear 

 yellow, unchangeable ; spores pale yellow-brown, elliptical 

 6x 4/t. 



Boletus rubinus, W. Gr. Smith, in Seeman's Journ., 1868, 

 p. 33, t. 75, f. 1-4 ; Cke., Hdbk., p. 253. 



On the ground under trees. It differs from all other 

 British species in the wholly carmine tubes, together with 

 the vivid yellow, wholly unchangeable flesh. 



A larger form or variety of this species occurred plentifully 



