182 
Mycologia 
19. Uromyces Rhyncosporae Ellis, Jour. Myc. 7; 274. 1893. 
Nigredo Rhyncosporae Arth. Result. Sci. Congr. Bot. Vienne 
344. 1906. 
On Cyperaceae: 
Rynchospora micrantha Vahl, Preston’s ranch near Na- 
guabo, Dec. 31, 6p66. 
Porto Rican material on the same host has been seen from 
Tabucoa, taken from a phanerogamic collection by Boeckeler 
3301, Oct. 12, 1886, and on R. aurea Vahl, collected by G. P. 
Clinton, at Mayagiiez, April 13, 1904. 
Collections have also been examined on R. cy per aides (Sw.) 
Mart, from Bahamas, on R. distans (Michx.) Vahl, from Cuba 
and Bermuda, and on R. polyphylla Vahl, from Jamaica, all of 
which are noted in the N. Am. Flora, vol. 7, pp. 232, 233. 
20. Uromyces Scleriae P. Henn. Hedwigia Beibl. 38; 67. 
1899. 
Nigredo Scleriae Arth. Result. Sci. Congr. Bot.. Vienne 344. 
1906. 
On Cyperaceae : 
Scleria pterota Presl. Luguillo forest, Dec. 2, 555^. 
Material has also been seen on the same host from Bayamon, 
E. W. D. Holway, Jan., 1911, and on an undetermined species of 
Scleria from near Santurce, A. A. Heller, Jan., 1903, 6447. 
21. Uromyces Commelinae (Speg.) Cooke, Trans. Roy, Soc. 
Edinb. 31 : 342. 1888. 
Uredo Commelinae Speg. Anal. Soc. Ci. Argent. 9: 172. 1880. 
Uredo Commelinaceae Ellis & Kelsey, Bull. Torrey Club 24: 
209. 1897. 
Nigredo Commelinae Arth. N. Am. Flora 7 ; 237. 1912. 
On Commelinaceae; 
•Commelina virginica L. (C. elegans H.B.K.), Desecheo, 
May 31, 1578c. 
The only other West Indian collection seen is on the same host 
from St. Croix, made in 1896 by A. E. Ricksecker, which was 
used as the type for Ellis & Kelsey’s name. 
