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Margin of pileus incurved when young. .... 1... ee eee 34. 
. Lamellae decurrent ..... wee ee ee ee) 659. Ecce. 
Lamellae adnate or adnexed. ..... ee Ss ce 60. LEPTONIELLA. 
(Spores white.) 
. Margin at first oie and appressed tostipe.......... 36, 
Margin at firstincurved. 2. 2 2 1 ee ee ee ee ee 43. 
. Pileus Le eptittin g down the backs of the lamellae. 
61. EPTOMYCES, 
Pileus even or striate, not splitting as above ........... 
. Pileus umbilicate: lamellae a OnE eGo ee ae ds he oa GS 38. 
Pileus convex, often umbonate: lamellae adnate or adnexed. . . 39. 
. Lamellae thick, obtuse, narrow fon en 62. DELICATULA. 
Lamellae acute, broad. . .....-...---2024 63, MPHALOPSIS, 
. Base of slender stipe deeply geen in matrix. .... 64. INSITICIA. 
Base of stipe dilated into a disc or 1) oer ar . . 65. BASIDIOPUS. 
Stipe not as above, base normal or radicatiag Shy eats, ete ae 40. 
. Stipe glutinous-viscid. . 6. 2... eee ee eee 66. COLLOPUS. 
Stipe and lamellae lactiferous, oa when cut. . 67. GALACTOPUS. 
Stipe neither glutinous nor Jactiferous. ...-..-.-----. 4I. 
. Cespitose, lignatile: stipe cone Samra . . 68, STEREOPODIUM. 
Solitary or gregarious: stipe often fragile... ......... 42. 
. Lamellae white, thin, gray or reddish : sie slender, fragile, radicat- 
BIN res Sea es an te fay Se nts ees , Hse Ga Pk 69. LINOPODIUM. 
Lamellae unchanging, often bright colored : stipe firmer, not radi- 
cating . PR 
llaed t: pil bilicate. 2 2... 71. One carne 
Lamellae admate or adnexed. . 2. 2 2. eee ee 
Pileus hygrophanous: lamellae cinereous. . . . . 2. TEPHROPHANA. 
Pileus not hygrophanous: lamellae white or tinted. ....... 5 
. Stipe slender, not conspicuously striate. ..... . 73. COLLYBIDIUM. 
Stipe stout, sulcate or fibrillose-striate. ......2.~. 74. GYMNOPUS, 
(Stipe fleshy 
. Spores purplish-brown : lamellae free ..... . . + +75. PILOSACE. 
Spores ochraceous, ete. . 2... ew ee 47. 
Spores pinkorsalmon ....... 0... ee eee eee 50. 
Spores white or hyaline... 0. 2... ee eee ee ee SI. 
Lamellae easily separable Hoey the pileus . 2... 0.2... 2. i: 
mellae concrete with the pileus. ©... 2... 2. eee 
Spores sordid-whitish: lamellae adnexed ........ 6. LEP 
pores ferruginous: lamellaedecurrent ........ 7 eae 
7 
. Lamellae decurrent, anastamosing at base: spores elongate. 
78. PHYLLOPORUS. 
Lamellae decurrent, oe spores elliptical. . . . — GYMNOCYBE. 
Lamellae iis oradnexed. ........0-.-. . HEBOLOMATIS. 
(Spores 
. Lamellae = Clitopilus). . 2. ee . . . 81. ORCELLA. 
Lamellae sinuate or adnexed. . ... 2... 2... 2. 82. ees A. 
Lamellae free. 2. 0. ee ee ee . . . , 83. PLUTEUS. 
( Spores white.) 
