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Pileus moist or sub-viscid: lamellae forking. . . . 14. DIxoPHYLLUM. 
Pileus slimy-viscid : lamellae See a gal . . 15. OMPHALOMYCES. 
. Pellicle dry, velvety, or crustose-areolate. ......- 16. RUSSULA. 
Pellicle moist or viscid, glabrous : See equal. . . 17. RUSSULINA. 
Tribe ITI. AGARICEAE 
pee naked even when young : no veil orcortina ol edt ae toe 2. 
ellae when young covered by a veil ora cortina or by 
“(Ceyptophylli) Se igy 28 ty GS te he Gy ae aan eee ae ck ae kee Gow 58. 
(Gymnophyllt.) 
. Lamellae densely hirsute, the edge splitting longitudinally: sessile. 
18, 
HYPONEVRIS. 
3- 
Lamellae glabrous, the edge entire ......-..+-. 
. Sporocarp tough, coriaceous or woody, reviving : spores whilken. oe 4 
Sporocarp fleshy or membranous, not reviving .......--. 17. 
Stipe eccentric, lateral or wanting: pileus irregular ...... - 5 
Stipe central: pileus regular or near 2 $028 es De Ae ». 8, 
Pileus cane Meds ater when young ....---- +--+ eee 6 
Pileus i or dimidiate, not eae Sosah et a fue op dota aut Ts 
ileus thin, nants SB vegaenat Gita ty ey guia, oe Te I9. PLEUROTOPSIS. 
Pileus coriaceous, of uniform texture ........ 20, ScYTINOTUS. 
Pileus coriaceous, with a gelatinous upper layer . 21. RESUPINATUS 
Stipe lateral or none: lamellae thin, lacerate. . . . . . 22, HEMICYB: 
Stipe lateral or none: lamellae thick, entire. . .... 23. PaxeLts 
Stipe eccentric: pileus somewhat fleshy. ......... 
Stipe tubular, slender, with a cartilaginous cortex. .......-.- 3 
Stipe solid, thick, of uniform texture. ........-4.. 
Pileus gelatinous: stipe horny. .........--. 25. iaaioncves, 
i nous or somewhat fleshy... ....+.-+--+..6. 
. Margin of pileus straight, Barn to the stipe when young... . II. 
Margin of pileus incurved when young. ..........- 
. Pileus convex: stipe rigid, ria or dilat 26, aes 
Pileus plane or umbilicate: stipe filiform, se . 27. MARASMIUS. 
7: 
. Pileus with a pellicle of thread-like hairs: hymenium persistent, of 
well developedlamellae ............. 28. CRINIPELLIS. 
Pileus glandular-hirsute : acca deliquescent, . rudimentary 
lamellae. es Sah ee ae OM a . HOMYCENELLA. 
Pileus without a pelicieg glabrous, or eels 80°s go ea ee I3. 
. Lamellae adnate or aubdecuren ih os at aetageenea sce. dead 30. COLLYBIOPSIS., 
Lamellae free or slightly adnexed. ... 2. 6. 2 ww. 31. SCORTEUS. 
. Cespitose: pileus irregular, subeccentric. ... . 32. eevee 
a 
mycelium... 2... ee ee 
Pileus thin, umbilicate or ee ee lamellae long ee t. 
Se is he Atay eb ee Fh, ah AS IE Sen Ge EL ee: ee 34. CILLARIA. 
Pileus thick, convex: lamellae adnate. ... . . . . . 35. pee 
