CLAVIS AGARICINOHUM. 321 



pileus with an inseparable pellicle ; stem confluent and homogeneous 

 with the hymenophorum. — Hab. Generally stumps. 



Most of the species are gregarious and not edible. Sypholoma cor- 

 responds with Tricholom.a, Plate C. fig. 4 ; \Entoloma, Plate CI. fig. 

 13 ; Hebeloma, Plate CII. fig. 20 ; and Parueolus, Plate CIV. fig. 33. 

 The species figured is Agaricus (HypJioloma) lacrymahundus, Fr. 

 Spores -0003" X -0003". 



Subgenus 30. Psilocybe, Fr. Syst. My col. vol. i. p. 289 

 (Plate cm. fig. 30). — Spores purple, purple-brown, or slate-colour; 

 veil obsolete (or in a few species fugacious, when present not forming a 

 distinct ring) ; pileus glabrous, at first incurved ; stem cartilaginous, 

 ringless, confluent with but heterogeneous from the hymenophorum. 

 — Hab. All grow on the ground. 



The species are almost all gregarious, caespitose, inodorous, with 

 fugitive colouring, and not edible. Fries divides the subgenus into 

 two groups, the tenacious and i\\Q fragile. Psilocybe corresponds with 

 Collyhia, Plate C. fig. 7 ; Leptonia, Plate CI. fig. 16, and Naucoria, 

 Plate CII. fig. 23. The species figured is Jgaricus (Psilocybe) spadi- 

 ceus, Schaeff". Spores -0003" X -0003". 



Subgenus 31. Psathyra, Fr. Epic. p. 231 (Plate CIII. fig. 31). 

 — Spores dark purple-brown, approaching slate-colour ; veil universal, 

 fibrous, or absent, not forming a ring ; pileus subraembranaceous, coni- 

 cal or campanulatc, margin at first straight and adpressed to the stem ; 

 stem fistulose, ringless, cartilaginous, fragile, confluent with but hete- 

 rogeneous from the hymenophorum. — Hab. On the ground or rotten 

 wood. 



All are slender and hygrophanous, with fugitive colouring, and 

 closely allied to the fragile species of the last subgenus. Psatliyra 

 agrees with Mycena (Plate C. fig. 8), Nolanea (Plate CI. fig. 17), 

 Galera (Plate CII. fig. 24), Psathjrella (Plate CIV. fig. 34). The 

 species figured is Agaricus (Psathyra) corrugis, Pers. Spores 

 •0005" X -0003". 



Subgenus 33. Deconica, subgen. nov. sp. Psilocybis Fr. (Plate 

 CIII. fig. 32). — Pileus thin, plane, at first incurved; veil obsolete or 

 adhering to the margin of pileus, not forming a ring ; stem cartilagi- 

 nous, hollow, confluent with but heterogeneous from the hymenopho- 

 rum ; gills decurreut. 



The typical species figured is A. (Deconica) physaloides, Bull. ; it is 



