Murrill : Agaricaceae of. Tropical North America 85 



7. Coprinus cinchonensis sp. nov. 



Pileus very delicate, conic, becoming campanulate, solitary, 2 

 cm. broad and 7 mm. high; surface gray, pulverulent, griseous 

 with isabelline patches on the disk; margin thin, long-striate, be- 

 coming revolute with age; lamellae free or slightly adnexed, 

 tapering behind, ventricose in front, crowded, becoming very dark 

 brown and deliquescing at maturity ; spores ovoid or broadly ellip- 

 soid, smooth, purplish-brown, mostly 2-guttulate, 9-11X5-6/A; 

 stipe subequal, smooth, glabrous, snow-white, 3.5 cm. long, 2 mm. 

 thick at the base and 1 mm. at the apex ; annulus wanting. 



Type collected on a dead log at Cinchona, Jamaica, 1,500 m. 

 elevation, December 25-January 8, 1908-9, W . A. & Edna L. 

 Murrill 579. Known only from the type locality. 



8. Coprinus Spraguei Berk. & Curt. Ann. Mag. Nat. Hist. III. 



4: 292. 1859 



This species was described from plants collected on the ground 

 in New England by Sprague. Berkeley reports it among 

 Wright's collections in Cuba and remarks that the spores are 

 smaller than those of C. plicatilis and of different shape. 



14. Clarkeinda O. Kuntze, Rev. Gen. 2: 848. 1891 



Agaricus § Chitonia Fries, Hymen. Eur. 277. 1874. 

 Chitonia P. Karst. Bidr. Finl. Nat. Folk 32: 482. 1879. Not 

 Chitonia Moc. & Sesse, 1824. 



This genus is distinguished from all the other Agaricanae by 

 the presence of a volva. It contains very few species and none 

 of them are known to occur in tropical North America. 



New York Botanical Garden. 



