Arthur; Uredinales of Porto Rico 
191 
ber of the collection is 5050. The same collection has been issued 
in Vestergren’s Micr. Rar. Sel. 1516, and in Bartholomew’s 
Fungi Columb. 40P3, and N. Am. Ured. jp/. Whether the 
species possesses aecia or not is not yet known. 
The species differs from Uromyces Jatrophae Diet. & Holw., 
for which it has been mistaken and to which it is closely related, 
by the thicker-walled urediniospores, and the dark-beaked telio- 
spores. 
The species on the same host has also been collected on the 
island of Jamaica by E. W. D. Holway, Feb. 17, 1915, 211. 
30. Uromyces Cestri Mont, in Gay, Hist. Chile 8 : 49. 1852. 
Aecidium Cestri IMont. Ann. Sci. Nat. II, 3 : 356. 1835. 
Uredo Cestri Mont. Prodr. Flor. Fernandes, no. 35. 1835. 
Uroniycopsis Cestri Arth. Result. Sci. Congr. Bot. Vienne 345. 
1906. 
On Solanaceae: 
Cestrum lanrifoliuni L’Her., Cabo Rojo, June 15, 2251 •, 
Monte Alegrillo, Nov. 14, 4822; Quebradillas, Nov. 22, 
4995 > San German, Nov. 8, 582^; Arecibo — Lares road, 
Jan. 21, 1914, <5757; Arecibo, Jan. 17, 1914, 680^. 
Cestnwi macro phylliim Vent., Barros, Jan. 2, 124, 144; 
Maricao, Jan. 10, 1912, 2jo, April, I and III, 77/, April 
3, 772, no date, 34pp ; Rio Maricao above Maricao, 
Sept. 20, 3640; Ponce, Nov. 8, 4353, 4364-, Monte 
Alegrillo, no date, 4719, Nov. 14, 4766; Lares, Nov. 22, 
4847 ; Luguillo forest, Dec. 2, 5550, 5603 ; IMonte de 
Oro, Dec. 3, 5713] River junction below Utuado, Dec. 
16, 6036, Dec. 17, 6030, Dec. 30, 6313] Preston’s ranch, 
Dec. 31, 6708. 
The aecia produce a considerable hypertrophy, and the peridia 
being evanescent, the spots soon take on the appear.ance of in- 
sect galls. The telia are not common, only one of the collections, 
no. 771, showing a few sori on the same leaf with aecia. No 
pycnia of this species have yet been recorded. 
The species is also known on three other West Indian islands : 
Jamaica, St. Jan and Tortola. 
