Murrill: Agaricaceae of Tropical North America 67 



I have found it rather scarce in tropical regions during the winter 

 but it may be more abundant there during the rainy season. 



Cuba, F. S. Earle 289; Santo Domingo, /. R. Johnston 803; 

 Jamaica, at low elevations, W. A. Murrill 230, 825; Colima. 

 Mexico, W. A. Murrill 61 2 } 617. 



12. Drosophila caespitosa (Earle) 



Gymnochilus caespitosus Earle, Inf. An. Estac. Centr. Agron. 



Cuba 1 : 240. 1906. 

 Hypholoma caespitosum Morg. Jour. Myc. 14:29. 1908. 



Known only from specimens collected by Earle at the base of 

 a stump in a garden at Santiago de las Vegas, Cuba. 



8. Hypholoma (Fries) Quel. Champ. Jura Vosg. 112. 1872 



Agaricus § Hypholoma Fries, Syst. Myc. 1: 287. 1821. 

 Naematoloma P. Karst. Bidr. Finl. Nat. Folk 32 : 495. 1879. 



This genus differs from Drosophila in having a dry, glabrous, 

 firm, densely cespitose hymenophore. It contains few species, 

 but they are abundant in temperate regions and have been much 

 confused among themselves. 



Pileus acutely umbonate i. H . papillatum. 



Pileus not acutely umbonate. 



* Pileus yellow or reddish 2. H . fasciculare. 



Pileus some shade of green, at least when young. 



Lamellae white; stipe 5-10 cm. long 3. H. tuberculatum. 



Lamellae green ; stipe 3-4 cm. long 4. H. fiavovirens. 



1. Hypholoma papillatum Pat. Bull. Soc. Myc. Fr. 14:54. 



1898 



Described from specimens collected by Paul Maury on decay- 

 ing logs in Mexico. Known only from the type locality. 



2. Hypholoma fasciculare (Huds.) Quel. Champ. Jura Vosg. 



113. 1872 



This very common temperate species has been frequently re- 

 ported from tropical North America by Patouillard and others, 



