Boletus,] FUNGI. 151 



of an inch thick, nearly smooth, very firm, yellow streaked more or less 

 with red, generally crooked particularly at the base which is often sud- 

 denly attenuated, though sometimes that part is tiiickest, changing 

 slightly to blue when cut. l\iste not unpleasant. Part of the above 

 description is taken from Dr. Greville's excellent account of this species 

 in the Flora Edinensis. It is eaten in Germany, according to Trat- 

 tinick, but he does not give a very favourable account and recommends 

 only young specimens, old ones having frequently proved injurious. 

 M. Roques considers the use of it as hazardous. Great caution would 

 be required in distinguishing some states from B. luridas. 



9. B.cdlojms, Pers. {scarlet-stemmed Boletus) ; pileiis pulvinate 

 more or less olive, tubes adnate angular yelloAV, stem nearly 

 equal reticulated scarlet. Pers. Syn, p. 513. Fr. Syst. JShjc, 

 V. 1. p. 390. Nees, Syst. f. 2m {copied from Schceff.) — B. 

 terj'eus, Schceff. t. 315. 



Heathy woods. Aug. Loch Laggan, Klotzsch in Hook Herb.-^ 

 " Differs from B. subtomentosns in the red, thicker, reticulated stem and 

 narrower tubes. Flesh more or less changing to blue." — Fr. I. c. 



10. B. pdchypus, Fr. (thick-stemmed Boletus) ; pileus pulvi- 

 nate subtomentose tan-coloured, tubes free round yellow, stem 

 thick reticulated yellowish-red. Fr, Syst. Myc. v. I. p. 390. — 

 Suillus, .)c3Itch.t. 69./. 2. 



b. pileus olive. B. olivaceus, Schceff. t. 105. With. v. 4r. p, 

 279. Purt. Midi. Fl. v. 2 &,• 3. 7i. 988.— j5. elatus, Pers. Myc. 

 Eur. V. 2. p. 1 34. 



Fir woods. July — Sept. Helensburgh, Dumbartonshire, Klotzsch 

 in Hook. Herb. Lytchett, East Morden, Dorset. Rev. M. J. Berkeley 

 ^Pileus (i— 7 inches broad, dry, pulvinate, subtomentose, pale reddish- 

 brown, very thick and fleshy, when young firm, when full-grown very 

 soft ; jittsh white, not changeable. 'I'ubes free, at first lemon-coloured, 

 afterwards dirtv-yellow, simple. Stem 3—4 inches high, 1>.^ inches 

 thick, bulbous,' often swollen from the top, rarely equal, reticulated, 

 yellowish when young, subrufescent when old. Sometimes two or 

 three specimens spring from the same root. This, as far as I can judge 

 froM) Fries' description, is his B. pdchypiis. The tubes, however, do 

 not become blue when touched. Whatever may be thought of the above 

 description, the species nmst still be considered liritish, on the autho- 

 rity of M. Klot/sch. The form b. which 1 have met with 1 am inclined 

 to think distinct. 



Another large Bnhtns occurs in pastures, under oaks, in Aug. .nnd 

 Sept., apparently distinct, though nearly allied. I sliall therefore give 

 its characters at length, leaving the establishment of it as a species for 

 further consideration. Pileus 10 inches or more across, pulvinate, 2 

 inches thick, pale ochraceous umber, smooth but with a satiny appear- 

 ance from the miiuite matted silk with which it is clothed, visible only 

 under a lens ; s )metimes much cracked. FUsh instantly changing from 

 yellow to a beautiful blue, which, however, is very evanescent ; towards 

 the edge the flesh scarcely changes at all. Ttdns free, but pressed 

 close to the stem, forming an irregular spongy mass an inch thick, pale 

 yellow, blue when bruised. Spnridrs pule olivaceous ochre. Stan S 

 inches high, nearly 3 inches thick, bulbous at the base, generally reticu- 



