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TECHNICAL KEY TO THE GENERA OF MUSHROOMS<br />

68. Spores smooth (use oil immersion) 69<br />

68. Spores roughened or angular 73<br />

69. Subhymenial zone typically well developed and gelatinous;<br />

typically lignicolous; often with an annulus, and stipe fibrillose<br />

to scaly below annulus or annular zone Pholiota<br />

P. squarrosa (Pers. ex Fr.) Kummer<br />

69. Not as above, typically terrestrial (lignicolous in Gymnopilus) 70<br />

70. Stipe fleshy 71<br />

70. Stipe brittle, typically thin 72<br />

71. Pileus viscid; cystidia when present neither thick-walled<br />

nor encrusted Hebeloma<br />

H. fastibile (Fr.) Kummer<br />

71. Pileus dry or moist; if subviscid then encrusted cystidia<br />

present on sides of lamellae Inocybe<br />

I. trechispora (Berk.) Karst.<br />

72. Spores somewhat almond-shaped; margin of pileus appressed<br />

when young Galerina<br />

G. (Galera) rubiginosa (Pers. ex Fr.) KUhner<br />

72. Spores somewhat reniform in side view or elliptic; margin of<br />

pileus inrolled or incurved at first Naucoria<br />

N. centuncula (Fr.) Kummer<br />

73. Spores angular to nodulose or with prominent spines or<br />

compound nodules Inocybe<br />

I. trechispora (Berk.) Karst.<br />

73. Not as above 74<br />

74. Spores with a smooth area around the hilum Galerina<br />

G. rubiginosa (Pers. ex Fr.) Kummer<br />

74. Not as above 75<br />

75. Membranous annulus present; volva rudimentary Rozites<br />

R. (Pholiota) caperata (Pers. ex Fr.) Karst.<br />

75. Not as above 76<br />

76. Typically lignicolous and spore deposit very bright rusty<br />

fulvous to orange-fulvous Gymnopilus^<br />

G. (Flammula) liquiritiae (Pers. ex Fr.) Karst.<br />

76. Not as above 77<br />

77. Veil lacking and stipe long-radicating Phaeocollybia<br />

P. (Naucoria) festiva (Fr.) Heim. ex Sing.<br />

77. Not as above 78<br />

78. Lamellae separable from pileus Ripartites<br />

R. (Inocybe) tricholoma (A. & S. ex Fr.) Karst.<br />

78. Not as above 79<br />

79. Stipe thin and fragile; clamp connections absent Galerina<br />

G. rubiginosa (Pers. ex Fr.) Kummer<br />

79. Stipe thick, or if thin then clamp connections present 80<br />

80. Typically associated with alder, and pileus showing some differentiation<br />

of the cuticle other than a gelatinous pellicle, or cystidia present<br />

on the pileus; stipe cartilaginous-brittle<br />

A. (Naucoria) submelinoides KUhner<br />

Alnicola<br />

80. Not as above 81<br />

269

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