LEUCOSPORI. 



33 



more or less radiato-wrinkled, smeared over with a thick tenacious Armillaria. 

 gluten; margin striate when thinner. Stem 4-7.5 cent. (1^-3 in.) 

 long, 2-4 mm. (1-2 lin.) thick at the apex, thickened at the base, 8 

 mm. (4 lin.), stuffed, thin, rigid, curved-ascending, smooth, white, 

 but fuliginous-scaly at the base when most perfectly developed. 

 Ring inserted at the apex of the stem, dent downwards and ghied 

 close to the stem, silicate; the white border again erect, with a 

 swollen and entire margi?i which sometimes becomes fuscous. 

 Gills rounded behind, obtuse, adhering to the stem and striato- 

 decurrent, distant, broad, lax, mucid, always shining w r hite. 



Very variable in stature, from 2.5 cent, (i in.) (when of this size the stem is 

 almost equal) to as much as 15 cent. (6 in. ) broad. The colour of the pileus 

 varies grey, fuliginous, olivaceous. The gills sometimes become yellow, but 

 only from disease. Sometimes solitary, sometimes a few are joined in a cees- 

 pitose manner at the base. 



On beech. Frequent. Aug.-Nov. 



Very beautiful, of an exquisite pellucid white. Tough and very sticky. 

 Spores 14x17 mk. IV.G.S. Name mucus, slime. Schrad. Spic. p. 116. 

 Fr. Monogr. \. p. 46. Hym. E^^r. p. 46. Berk. Out. p. 96. C. Hbk. n. 37. 

 Illust. PL 16. S. Mycol. Scot. n. 34. Saund. & Sm. t. 5. Quel. t. 2.f. i. 

 Price t. 14 f. 91. Paul t. 139, bis. A. nitidus Fl. Dan. t. 773. Trait. 

 Aiistr. t. 27. A. splendens Fl. Dan. t. 1130. Hartz. t. 35. Var. with oliva- 

 ceous fuscous pileus=A. olivaceo-fuscus Fl. Dan. t. 1372. 



Subgenus IV. TRICHOLOMA (0pi|, a hair, 



a fringe). Tricholoma. 



Fr. Syst. Myc. i. p. 36. Veil obsolete or only consisting of flocci 

 or fibrils which adhere to the margin 

 of the pileus. Stem fleshy, not fur- 

 nished with a bark. Hymenophore 

 continuous with the stem, gills sin- 

 'uate behind. All growing on the 

 ground, fleshy, never obconic or truly 

 umbilicate. Fr. Hym. Eur. p. 47. 



The sinuate gills distinguish this 

 from all the other white-spored sub- 

 genera. None are known to be truly 

 poisonous. A few, such as A. sapo- 

 naceus, are suspicious. 



Series A. Pileus viscous, fibrillose, scaly 

 or pubescent, and not watery-moist or be- 

 coming even. Flesh not absorbing moisture 

 nor hygrophanous. Stem fibrillose, as is also 

 the universal veil, which is adnate (and scarcely distinctly conspicuous). 



C 



V. Agaricus ( Tricholoma) sapona- 

 ceus. One-third natural size. 



