CLAVIS AGARICINOUUM. 215 



Allied to Tricholoma, Plate C. fig. 4, but, with few exceptions, the 

 species of Entoloma are much thinner and often brittle. Many possess 

 the odoiu" of new flour, but none are edible, and some highly poisonous. 

 They appear in summer after heavy rains. Besides con-esponding 

 with Tricholoma, Entoloma agrees in structure with Hebeloma, Plate 

 CII. fig. 20, and Hypholomu, Plate CIII. fig. 29. The species figured 

 is Agaricus (Eidoloiua) smualiis, Fr. {A. fertlUs of Berkeley's ' Out- 

 lines '). Average size of spores -00035" X -00025". 



Subgenus 14. Clitopilus, Fr. Epicr. p. 148 (Plate CI. fig. 14).— 

 Spores salmon-colour, in some species very pale, almost white, pip- 

 shaped, somewhat irregular spheres or altogether irregular as in Ento- 

 loma, fig. 13 ; pileus viscid, smooth or pruinose, dull white, cinereous or 

 brownish, generally fleshy ; stem fleshy or fibrous, confluent with the 

 hymenophorura and homogeneous with it ; gills decurrent, never 

 sinuated. — Hab. All are terrestrial. 



With the exception of the gills, most of the characters correspond 

 with Entolunia. The odour of the species is more or less mealy ; 

 some, however, are oily, some tasteless, others edible. Clitopilus is 

 closely allied to Clitocyhe, Plate C. fig. 5, and diflers from Entoloma 

 precisely as CUtocyhe diff"ers from Tricholoma. Clitopilus agrees more 

 or less with Flatnmula, Plate CII. fig. 21. The species figured is 

 Agaricus (Clitopilus) prunulus, Pers. Spores -00045" x -0002". 



Subgenus 15. Claudopus, subgen. nov. sp. Pleuroti and Crepidoti, 

 Fr. (Plate CI. fig. 15). — Spores pink, or pale lilac; stem lateral or 

 none, when present confluent and homogeneous with the hymenopho- 

 rum ; gills sinuate or decurrent. — Hab. on wood or the ground. 



Claudopus corresponds with Pleurotus, Plate C. fig. 6, and Crepidotus, 

 Plate CII. fig. 22, only diftering in the colour of the spores. Mr. 

 Berkeley's fine species, Agaricus (Pleurotus) euosmus, A. (Crepidotus) 

 byssisedus. P., and other species fall naturally into this subgenus. The 

 spores of A. prunulus, Pers., are often quite as pale in colour as those 

 of A. euosmus, B., and those of A. (Clitopilus) popinaUs, Fr., are paler ; 

 indeed, the tint here (if present) is so faint as to be scarcely per- 

 ceptible. The species figiu'cd is A. (Claudopus) euosmus, B. Spores 

 •0003" X 00013". 



Subgenus 16. LeptOxNia, Fr. Syst. Myc. vol. i. p. 201 (Plate CI. 

 fig. 16). — Spores salmon-colour, irregular in shape; pileus less cam- 

 panulatc than Nolanca, and never truly fleshy, cuticle always torn 



