SYSTEMATIC INDEX. 9 



hymenophore, thin, unequal, membranaceous, with the edge 

 serrate or torn into teeth. Spores white, roundish, even. 

 Growing on wood. 



i. Mesopodes. Pileus nearly entire, stem distinct. 



* Lepidei. Pileus squamose, more or less mani- 



festly veiled. 



1089. tigrinus, Bull. . . 1138, 1139a 



1090. Dunalii, D. Cand. . . 11396 

 1091, 1092. lcpideus, Fries . . 1140, 1141 



** Pulverulenti. Pileus villose or pulverulent. 



leontopodius, Schultz . . 



pulverulentus, Scop. . . 



resin aceus, Trog. . . 



adhaerens, Alb. 4" Schw. . 



* # * Cochleati. Pileus smooth. 



1093a. cochleatns, Fries . . . 1142a 



ii. Pleuroti. Dimidiate, sessile, or with a rather 

 lateral stem. 



1094. scoticus, B. ^ Br. . . 1143 



1095a. fimbriatus, Curr. . . 1148a 



10936. vulpinus, Fries . . . 11426 



10956. flabelliformis, Bolt. . . 11486 



Gen. 15. FANUS, Fries Spier. 396. 

 Whole fungus fleshy-leathery, tough, becoming dry, sub- 

 stance fibrous, radiating into the hymenium. Gills concrete 

 with the hymenophore, unequal, at length leathery, edge 

 entire. Spores even, white. 



* Pileus irregular, stem excentric. 



inQfi C conchatus, Fries . . 1149a 



iUyt> ' (torulosus, Fries . .11496 



** Stem definitely lateral. 



1097 f stypticus, .Bw^Z.* . . 1144a 



' *j farinaceus, Schum. . . 11446 



* # * Pileus resupinate, sessile, or extended behind. 



1097c. patellaris, Fries . . 1144c 

 Stevensoni, B. fy Br. . . 



Gen. 16. XEROTUS, Fries Flen. I. 48. 

 Hymenophore continuous with the stem, descending into 

 the trama, which is similar to the leathery pileus. Gills 

 leathery, broadly fold-like, dichotomous, edge entire, 

 obtuse. 



