Murrill : Agaricaceae of Tropical North America 273 



5. Leptoniella cinchonensis sp. nov. 



Pileus thin, irregular, convex, umbilicate, gregarious, 2-2.5 cm - 

 broad, less than 1 cm. high ; surface dry, striate, avellaneous, 

 fuliginous at the center, margin lobed ; lamellae" adnate, rather 

 broad and distant, pale-russet; spores angular, uninucleate, 10-12 

 X 7-9 p ; stipe cylindric, smooth, fumosous, slightly tapering 

 upward, 3 cm. long, 2.2 mm. thick. 



Type collected on the ground on a shaded bank at Cinchona, 

 Jamaica, 5000 ft. elevation, December 25-January 8, 1908-9, 

 W. A. & Edna L. Murrill 562. 



6. Leptoniella mexicana sp. nov. 



Pileus convex to expanded, umbilicate, gregarious, 1.5 cm. 

 broad ; surface smooth, silky-fibrillo.se, pale-avellaneous, margin 

 thin, fragile ; lamellae adnate, broad, distant, heterophyllous, pale 

 ashy-gray with a slight rosy tint ; spores polygonal, uninucleate, 

 7X4.5-5/*; stipe slightly larger below, concolorous, glabrous, 

 cartilaginous, 2.5 cm. long, 1.5 mm. thick. 



Type collected on the ground in humus in a coffee plantation 

 near Orizaba, Mexico, January 10-14, 1910, W. A. & Edna L. 

 Murrill 837. 



2. Eccilia (Fries) Quel. Champ. Jura Vosg. 90. 1872 

 Hyporhodius Schrot. Krypt. Fl. Schles. 3 1 : 613. 1889. 



A small genus readily distinguished by its cartilaginous stipe 

 and decurrent gills. One species, E. rhodocylix, has been re- 

 ported from Cuba and Bermuda, but such tropical material as I 

 have seen so determined does not agree with the European 

 plant. 



1. Eccilia atrides (Lasch) Quel. Champ. Jura Vosg. 90. 1872 

 A well-known European and temperate North American spe- 

 cies reported as far south as North Carolina. The edges of the 

 gills are black and denticulate ; spores angular, 7-9 fi. 



Troy and Tyre, Jamaica, W. A. Murrill & W. Harris 1069; 

 Jalapa, Mexico, W . A. & Edna L. Murrill 77. 



2. Eccilia cubensis sp. nov. 



Pileus convex, 1 cm. broad ; surface dark-tan, darker at the 

 disk, innate-scaly, not striate ; lamellae decurrent, rather distant, 



