'248 CLAVIS AGARICINOKUM. 



The species are polymorplious and defined with difficulty, in conse- 

 quence of the changeable colour of the gills. 



Subgenus 5. Telamonia, Fr. Epicr. p. 291. — Pileus racist, liygro- 

 phanous, at first glabrous or sprinkled with tlie arachnoid superficial 

 fibres of the veil, thin or moderately compact in the disk ; stem peronate, 

 and annulate from an inferior veil. Mostly large and handsome. 



Subgenus 6. HYGROCYBE,Fr. Epicr. p. 303. — Pileus generally thin, 

 glabrous, hygrophanous, but not viscid, cuticle rigid, not fibro-lace- 

 rate ; stem rigid, subcartilaginous without, never annulated or scaly. 



Genus V. Lepista, gen. nov. ; Lepista, Paxilli sect. Fr. Epicr. p. 

 315. — Spores (as well as the whole plant) dirty white; pileus fleshy, 

 with an involute margin gradually increasing indefinitely ; stem always 

 central, continuous with the horny hyraenophorum ; gills fragile, per- 

 sistent, decurrent, membranaceous, entire, Avith a sharp edge, supported 

 by the horny hymenophorura. — Hab. All the species are terrestrial. 



I have followed Fries' later views in transferring some Tricholomata 

 to this position, on account of the absence of a true trama, etc. ; as 

 TricJioloma is analogous to Entoloma, I have sought for the corre- 

 sponding absence of a trama in the latter subgenus, and from my own 

 notes I find it partially absent in Jguricns (Entoloma) placenta, Batsch., 

 and A. (Entoloma) nidorosiis, Fr. Certain species also occur in the 

 analogous subgenera Hebeloma and Hypholoma, with the trama partially 

 absent, as A. (Hebeloma) laniiginosus, Fr., and A. (Hypholoma) lacry- 

 inabundus, Fr. ; the character also pertains to some species of Copri- 

 iiar'd. 



The value of the trama as a character has not been properly studied, 

 and in future its presence or absence should be invariably given in all 

 descriptions of Agarics. Nylander and Hoffman affirm its presence in 

 Paxlllus involiUus, Fr. ; and there certainly appears to be a floccose 

 trama present in P. panuoides, Fr., a species which may be as readily 

 mistaken for a Cantharellus as P. poi'osus, Berk., for a Boletus. 



Genus VI. Paxillus, Fr. Gen. Hymen, p. 8, ex parte. — Spores (as 

 well as the whole plant) ferrugineous ; pileus fleshy, seldom entire, gene- 

 rally more or less dimidiate, entirely lateral or sessile, with an involute 

 margin, and gradually increasing indefinitely ; stem continuous with 

 the hymenophorum ; gills tough, soft, persistent, decurrent, anasto- 

 mosing behind, branching, or forming spurious pores as in Boletus, 

 with a sharp edge, separating from the fleshy hymenophorura, owing 



