CLAVIS AGARICINOEUM. 203 



times evanescent ; volva none ; gills free, hence not sinuate or decur- 

 rent. — Hab. On the ground, mostly in rich grassy places, and more 

 often in fields than woods. 



Lepiola corresponds in structure with Chamreotn, Plate II. fig. 11, and 

 Psalliota, Plate IV. fiig. 26 ; the sections of both subgenera change 

 colour, and they have a common habitat. Coprinus is allied to this sub- 

 genus. Several species o( Lepiota, as J. clypeolarius. Bull, A. cepastipes. 

 Sow., and A. cridatus, Fr., appear in hothouses all the year round. 

 Lepiota is readily recognized amongst white-spored Agarics by \t% free 

 (/ills, annulated stem tciiliont a volva, and generally scaly pileus. Nearly 

 all are autumnal and edible. The species figured is Agaricus (Lepiota) 

 •procerus. Scop. Spores -0006 "X -00035." 



Subgenus 3. Aemtllaria, Fr. Syst. Myc. vol. i. p. 26 (Plate I. 

 fig. 3). — Veil partial, in infancy attaching the edge of pileus to the 

 upper part of stem, and often forming ttocci on the pileus (g); pileus gene- 

 rally fleshy; stem homogeneous and confluent with the hyraenophorum, 

 furnished with a ring (sometimes absent in abnormal specimens), below 

 the ring the veil is concrete with the stem, often forming scales upon 

 it similar to the scurfy scales on the pileus ; gills broadly touching or 

 running down the stem. — Hab. On the ground or on stumps of trees. 



This subgenus corresponds with PhoUota, Plate III. fig. 19, and 

 Stt-opharia, Plate IV. fig. 28 ; it is also allied to Tricholoma, CUtocybe, 

 and Collybia, amongst the white-spored Agarics. Fries subdivides 

 Armillaria into groups, depending on their relations to one or other of 

 these subgenera. The species figured is Agaricua (Armillaria) melleus, 

 Vahl. Spores -00035" x -00023". 



Subgenus 4. Tricholoma, Fr. Syst. Myc. vol. i. p. 36 (Plate I. 

 fig. 4). — Veil absent, or if present, floccose and adhering to the mar- 

 gin of pileus ; in A. acerbus, Bull., the margin of pileus extends beyond 

 the gills, exactly as in A. separatus, L. (Plate V. fig. 33) ; pileus 

 generally fleshy ; stem homogeneous and confluent with tbe hyraeno- 

 phorum, central and subfleshy, without either ring or volva, and with 

 no distinct barklike coat ; gills sinuate, i. e. with a sinus (or small 

 sudden curve) near the stem (h). — Hab. All the species grow on the 

 ground, the larger in hilly woods, and the smaller in pastures. 



TricJioloma corresponds with Entoloma, Plate II. fig. 13 ; Hebeloma, 

 Plate III. fig. 20 ; Hypholoma, Plate IV. fig. 29 ; and Panceolus, 

 Plate V. fig. 33. Most of the species grow in the autumn, some 



