ARTHUR AND JOHNSTON: UREDINALES OF CUBA 135 
This autoecious species, having pycnia, uredinia, and telia, is 
now first reported from Cuba, but has been known from Porto 
Rico, Jamaica, and Martinique, as well as from the continents of 
North and South America. It has usually been listed under U. 
Bidentis Lagerh., a name belonging to a similar short-cycle species 
on the same hosts, not yet reported for Cuba. 
55. ОКОМҮСЕЅ COLUMBIANUS Mayor, Mém. Soc. Neuch. Sci. Nat. 
5:467. 1913. 
Nigredo columbiana Arth. Mycologia 7: 194. 1915. 
ON CARDUACEAE: 
Melanthera brevifolia O. E. Schultz, Santiago de las Vegas, 
July 26, 1915, II, III, Johnston 143. 
Uredinia have been found on phanerogamic specimens in the 
herbarium of the N. Y. Bot. Garden, on M. brevifolia, Vedado 
(Prov. Habana), May, 1909, Bro. León 1371, and on M. hastata 
cubensis O. E. Schultz, near Sta. Fé (Prov. Habana), Oct. 7, 1915, 
Bro. León. 
This autoecious rust has heretofore been known only from 
Porto Rico, and from the type locality in Colombia, S. A. The 
life cycle embraces pycnia, aecia, uredinia, and telia. 
56. PUCCINIA PURPUREA Cooke, Grevillea 5: 15. 1876. 
ON POACEAE: 
Holcus halepensis L. (Sorghum halepense Pers., Andropogon 
halepensis Brot.), Santa Clara (Prov. Santa Clara), 
March 19, 1903, II, Holway (Barth. Fungi Columb. 4670); 
Havana, March 21, 1903, II, Holway (Barth. N. Am. 
Ured. 963) and March 24, 1903, Holway; Aguacate 
(Prov. Habana), March 23, 1903, Holway; Santiago de las 
Vegas, July 19, 1904, Horne, and Sept. 27, 1915, Johnston 
169; Herradura (Prov. Pinar del Rio), March, 1917, II, 
III, Horne. 
Holcus Sorghum L. (Sorghum vulgare Pers.), Santiago de las 
© Vegas, Хоу. 17, 1905 (Broom, Kaffir, and Milo), Horne, 
March r, 1907, Baker 1716, 1717 (Barth. N. Am. Ured. 
1072, Fungi Columb. 2464, Sydow Ured? 2328), March 
10, 1916 (Egyptian millet), Johnston 730. 
The species is undoubtedly heteroecious, but the aecial host is 
yet undiscovered. A very common rust in warm regions, usually 
