Murrill: Agaricaceae of Tropical North America 91 



7. Chamaemyces Batt. Fung. Hist. 32. 1755 

 MuciduL* Pat. Hymen. Eur. 95. 1887. 



This genus, founded on the species commonly known as Armil- 

 laria fracida Fries, differs from Poly'myces chiefly in its sub- 

 cartilaginous stem, the adnate gills being hardly distinctive in this 

 instance. 



Chamaemyces alphitophyllus (Berk. & Curt.) 



Agaricus (Amanita) cubensis Berk. & Curt. Jour. Linn. Soc. 10: 



282. 1868. (Type from Cuba.) 

 Agaricus (Armillaria) cheimonophyllus Berk. & Curt. Jour. Linn. 



Soc. 10: 284. 1868. (Type from Cuba.) 

 A. (Mycena) alphitophyllus Berk. & Curt. Proc. Am. Acad. 4: 



112. i860. (Type from the Bonin Islands.) 

 A. (Mycena) leucoconis Berk. & Curt. Proc. Am. Acad. 4: 113. 



i860. (Type from the Bonin Islands.) 



This' interesting species, easily identified by its immense globose 

 spores, 16^ or more in diameter, is common on exposed hard- 

 wood logs and decayed spots in standing trunks throughout the 

 lowlands of Cuba, Jamaica, and Guadeloupe, and also occurs in 

 Louisiana, Mexico, and elsewhere in our tropics. The only col- 

 lection made above 2,000 ft. seems to have been at Jalapa, Mex- 

 ico, at an elevation of 5,000 ft. Earle found it common on willow 

 in one of the parks at New Orleans in August, 1908. It was 

 first described from the Bonin Islands, and, according to Patonil- 

 lard, it also occurs in Tonkin. 



Cuba, Wright, Earle 38, 112, 151, 267, 376, 294, 268, 150, 2/8, 

 Baker 262, Underwood & Earle 420, 11 37, 11 12; Honduras, Ml 

 E. Peck; Mexico, W . A. & Edna L. Murrill 166, 1071; Jamaica, 

 Earle 263, §62, 573, Underwood 3339, W. A. & Edna L. Murrill 

 120, 124, 828, Murrill & Harris 1067, 1075, E- G. Britton ppd; 

 Guadeloupe, Duss; Grenada, Broadzvay; Montserrat, Shafer 875; 

 Louisiana, Earle 12; Bonin Islands, Wright. 



New York Botanical Garden. 



