THE AGARICACEAE OF TROPICAL NORTH 
AMERICA— VI 
William A. Murrill 
The present article concludes the treatment of species with 
ochraceous or ferruginous spores begun in Mycologia for March, 
1912. A portion of the generic key printed at that time appears 
below in a slightly revised form. 
Volva and annulus absent. 
Pileus centrally stipitate. 
Lamellae adnate or decurrent. 
Pileus dimidiate or resupinate. 
Volva absent, annulus present. 
Stipe glabrous or fibrillose. 
Stipe squarrose-scaly. 
9. Gymnopilus. 
10. Crepidotus. 
11. Pholiota. 
12. Hypodendrum. 
9. Gymnopilus Karst. Hattsv. 400. 1879 
Flammula (Fries) Quel. 1872. Not Flammula DC. 1818. 
A difficult cosmopolitan genus, with fleshy or fibrous stipe, 
adnate or decurrent lamellae, and usually abundant bright-fer- 
ruginous spores. Most of the species occur on decayed wood. 
1. Gymnopilus olivaceus (Pat.) 
Flammula olivacea Pat. in Duss, Enum. Champ. Guad. 55. 1903. 
Known only from type specimens collected by Duss on dead 
wood at Basse-Terre, Martinique. 
2. Gymnopilus vinicolor (Pat.) 
Flammula vinicolor Pat. Jour, de Bot. 3 : 339. 1889. 
Collected by Duss on dead wood at Saint Pierre, Martinique. 
Pileus 1-2 cm. broad, deeply umbilicate, glabrous, red tinted with 
wine-color ; lamellae close, large, scarcely decurrent ; spores ovoid, 
smooth, ochraceous, 6-7 X 
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