180 
Mycologia 
Hoy 220. The host species of the Ricksecker collection is clearly 
identical with the Hoy collection. 
15. Argomyces Vernoniae Arth. N. Am. Flora 7: 218. 1912. 
On Carduaceae: 
Vernonia borinquensis Urban, Consumo, April 27, O. II. 
HI, 8oq\ Jajome Alto, Dec. 3, O, II, HI, 5684-, El 
Gigante near Adjuntas, Dec. 15, II, HI, 5962. 
Vernonia phyllostachya (Cass) Gleason, Cabo Rojo, Dec. 
27, II, HI, 6473. 
The species was described from a Porto Rican collection from 
Cayey, on V. borinquensis, by E. W. D. Holway, Jan., 1911. 
The Stevens collections are the first additions to the type material 
so far seen. The shape and the pore arrangement as given for 
the urediniospores in the original description appear to need 
some modification. The spores may be ellipsoid, and the pores 
more than four and not strictly equatorial. 
16. Uromyces Eragrostidis Tracy, Jour. Myc. 7; 281. 1893. 
Nigredo Eragrostidis Arth. Result. Sci. Congr. Bot. Vienne 
343. 1906. 
On Poaceae: 
Eragrostis tephrosanthus Schult., Bayamon, Feb. 21, II, 
442. 
The species was collected on the same host by Mr. & Mrs. A. 
A. Heller at Rio Piedras, Jan. 17, 1899, ipy, which is the only 
other West Indian collection known to the writer. 
17. Uromyces leptodermus Sydow; Sydow & Butler, Ann. 
Myc. 4: 430. 1906. 
Puccinia (?) panicicola Arth. Bull. Torrey Club 34: 586. 
1908. 
Nigredo leptoderma Arth. N. Am. Flora 7: 224. 1912. 
On Poaceae: 
Lasiacis divaricata (L.) Hitchc. {Panicum divaricatum 
L.), Coleha, Nov. 3, 4528-, Utuado, Nov. 8, 4608', San 
German, Dec. 8, 4677, Dec. 12, 3857-, Maricao, Nov. 18, 
4792 \ Mona Island, Dec. 20, 21, 6o8g, 6143, 6423. 
