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. Stipe eccentric, lateral or — au irregular... ..... 18. 
Stipe central: pileusregular. . 2... 0.2 Le 
. Spores black : pilens tough « ses eee we. . 36, ANTHRACOPHYLLUM. 
Spores purplish-brown . MELANOTUS. 
- 37. 
Spores ochraceous- bowie ievietae separable from hanes 38. TAPINIA. 
Spores ochraceous-brown: lamellae fused with trama . 39. PHIALOCYBE. 
Spores pink orsalmon. ............04. 40. CLAUDOPUS. 
Seas ty Ges Meso atgde Gee ae ge ate, Spe, “Qs 
. Pileus sessile, at first resupinate. . ... Bes Se se, eet 4I. eae 
Pileus dimidiate, sessile or i iia «eae Mahe we ds ee UM. 
Pileus stipitate, ae stipe eccentric... ......, 0. 
. Lamellae decurren Pte hee th  Grctes he ah 4. ‘CREPI DOTUS. 
nese el or ee Sines Tescar ve, Sone hy oh Oe 44. MICROMPHALE. 
(Stipe central.) 
. Stip sep ei tubular, with a cartilaginouscortex. ........ 22, 
Stipe stout, fleshy, of uniformtexture.............. 46. 
. Sporesblack . 6. 0 Fe eee 23. 
Spores purplish- sbiowa or dark fuscous. ... 2... . 04. +. 24. 
Spores ochraceous, ferruginous orcinnamon ......... 26. 
Spores pink orsalmon,. .. 2... 0. eee a 33. 
Spores white orhyaline . 2... 2... 2. ee ee ee eee 35. 
: se ay deliquescent : pileus membranous-plicate, splitting along 
he backs of the lamellae ............ 45. COPRINOPSIS. 
on persistent: margin of pileus appressed to stipe when young. 
SATHYRELLA. 
. Margin of pileus cuba to the stipe when young. 47. ASTYLOSPORA. 
argin at firstincurved. .. 2... 2. 2... ee ee ee 25. 
. Lamellae ane Ge We tyslatar Saha? ae “et eu Han Ge 2 48. Dusowen. 
Lamellae adnate or ee 0 fabs saree. .os taceon we fe Thos tee 49. PSILOCYBE. 
Saee ochraceous. 
Lamellae ca ena (= Bolbitius) .. 1... .. - . 50. MycEna. 
TLamellae persistent. .... . : 27 
. Margin of pileus nee and oppressed to stipe sien young ... 28. 
Margin of pileus incurved when young . ene 
. Lamellae adnate or adnexe eidivge ae Gy a Te A he A 29. 
Lamellae fre PLUTEOLUS. 
- SI. 
Pileus se spitting: on wie back ee the iaisielle.< - 52. seis 
Pileus even or slightly striate 
. Pileus conic-campanulate: ienicliae staeued io a on eilarse: 
ofapex ofstipe ...---....58+-- - 53. CONOCYBE. 
Pileus convex or broadly companuiate: lamellae squarely adnate: 
apex of stipe not aes CO ae Se Ee -.. . 54. GALERINA, 
, Lamellae decurrent ........-+--. . 4 ee 6 . 55. TUBARIA, 
Lamellae adnate, adu axed or eueaiy free. 4. kh et 
32. 
. Spores small, bright-colored, ochraceous or fermuginons 56. Naveonts, 
BULL 
Spores large, dull, fuscous or cinnamon. ........., 57. 
(Spores pin 
) 
. Margin of pileus at first straight and appressed to stipe . 58. NOLANEA, 
