THE AGARICACEAE OF TROPICAL NORTH 

 AMERICA— VIII 



William A. Murrill 



In Mycologia for January, 1918, the first six genera in the 

 subtribe Agaricanae were discussed ; the remaining eight having 

 been reserved for the present paper, which concludes the series. 

 For a key to the genera of this subtribe, see Mycologia 10: 15. 

 1918. 



The total number of tropical agarics treated by me in this 

 series of articles and in North American Flora, exclusive of 

 doubtful species, amounts to 525, of which number 300 are newly 

 described. A great many species would doubtless be added by 

 further exploration, which is very much needed. 



7. Drosophila Quel. Ench. Fung. 115. 1886 



Lachrymaria Pat. Hymen. Eur. 122. 1887. 

 Cortinopsis Schroet. Krypt.-Fl. Schles. 3 1 : 566. 1889. 

 Glyptosperma Fayod, Ann. Sci. Nat. VII. 9 : 377. 1889. 

 Gymnochilus Clements, Bot. Surv. Neb. 4: 23. 1896. 

 Hypholomopsis Earle, Bull. N. Y. Bot. Gard. 5 : 436. 1909. 



This genus, well represented by the common species, D. ap- 

 pendiculata, is distinguished from other brown-spored genera by 

 an appendiculate veil, fleshy stipe, adnate or adnexed lamellae, 

 and a pileus usually thin, fragile, and solitary or subcespitose. 

 The number of temperate species is large and their characters 

 rather indistinct. Several cespitose species occur in tropical 

 America. 



Species occurring on cultivated or exposed soil. 

 Hymenophores solitary. 



Stipe 2 mm. thick 1. D. castaneidisca. 



Stipe 7 mm. thick 2. D. brevipes. 



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