174 POLYPOREI. 



Boletus. able. Stem 5-7.5 cent. (2-3 in.) long, yellow, smeared with 

 crimson, irregular. Tubes somewhat decurrent, compound, of 

 medium size, wholly carmine. 



It differs from all other British species in the wholly carmine tubes, together 

 with the vivid yellow, wholly unchangeable flesh. 



In mixed woods. Rare. Aug.-Sept. 



Spores oval, almost round, pale warm brown, 6x5 mk. ll'.G.S. Name — 

 ruber, red. From the tubes. Smith Seem. Journ. 1868, p. 33. /. 75./. 1-4. 

 Fr. Hym. Eur. p. 504. C. Hbk. ?i. 709. S. Mycol. Scot. n. 676. 



C. Subpruinosi. Pileus smooth, but most frequently 



pruinose, &c. 



19. B. pruinatus Fr. — Pileus 5 cent. (2 in.) and more broad, 

 piuplisli-bay-brown, umber-pruinose, convex then plane, rigid, 

 dry; flesh white, but also obsoletely green or azure-bluish. 

 Stem 5 cent. (2 in.) long, firm, somewhat ventricose, even, 

 smooth, variegated yellow and reddish. Tubes adnate, light 

 yellow ; pores minute, round. 



On grassy ground. Kew, &c. 



Name — prui/ia, hoar-frost. From the pruinose pileus. Fr. Hym. Eur. 

 p. 504. Epicr. p. 414. B. er 1 Br. n. 1285. Schcvff. t. 133? — Bull. t. 393. 

 / B. C. 



20. B. parasiticus Bull. — Pileus 2.5-5 cent. (1-2 in.) broad, 

 dingy yellow, convex then plane, silky becoming smooth, dry, soon 

 cracked in a tesselated manner. Stem 5 cent. (2 in.) long, thin, 

 rigid, incurved, externally and internally yellow. Tubes decur- 

 rent, of medium size, compound, golden. 



The colour of the pileus is variable. 



On species of Scleroderma. Rare. Clifton. Kew. 



Tubes labyrinthiform. Not viscid in any stage of growth. B. & Br. 

 Spores spindle-shaped, elongated, pale brown, 14 x 4 mk. ll'.G.S. Name — 

 parasitus, a guest. Parasitic. Bull. t. 451./. 1. Fr. Hym. Eur. p. 505. 

 Syst. Myc. i. /. 389. Berk. Out. p. 231. C. Hbk. n. 710. Saund. & Sm. t. 

 43. Rostk. t. 7 (monstrous). 



D. Calopodes. Stem stout, at the first bulbous, &c. 

 * Genuini. Stem reticulated with veins, cVv. 



21. B. variecolor B. & Br.— Pileus olivaceous, convex, some- 

 what tomentose, margi?i involute; flesh dark pu?ple under the 

 cuticle. Stem bulbous, attenuated upwards, reticulated at the 



