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. If". G.S. Name 

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

 Fr. Hym. Eur. p. 504. C. Hbk. n. 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, 

 purplish-bay-brown, innber-pruijiose, 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 pruina, hoar-frost. From the pruinose pileus. Fr. Hym. Enr. 

 p. 504. Epicr. p. 414. B. cr 1 Br. n. 1285. Schceff. 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 Sclerodcrma. Rare. Clifton. Kew. 



Tubes labyrinthiform. Not viscid in any stage of growth. B. 6^ Bi\ 

 Spores spindle-shaped, elongated, pale brown, 14x4 mk. II'. G.S. Name 

 parasitits, a guest. Parasitic. Bull. t. 451. /. i. Fr. Hym. Eur. p. 505. 

 Syst. Myc. i. p. 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, &>c. 



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

 what tomentose, margin involute ; flesh dark purple under the 

 cuticle. Stem bulbous, attenuated upwards, reticulated at the 



