128 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
41. UROMYCES JAMAICENSIS Vesterg. Ark. Bot. Stockh. 45: 33. 
1905. 
ON FABACEAE: 
Bauhinia divaricata L., Caleta Grande, Isle of Pines, March 
9, 1916, Britton, Wilson & León 15335. 
An autoecious species, apparently short-cycled although no 
pycnia have yet been detected. It occurs in Mexico on the same 
host, and in Porto Rico and Jamaica on other hosts. 
42. Uromyces MEpIcAGINIs Pass.; Thüm. Herb. Myc. Oecon. 
156. 1874. 
Uromyces Medicaginis-falcatae Wint. in Rab. Krypt.-Fl. 1: 159. 
1881. 
ON FABACEAE: 
Medicago sativa L., Santiago de las Vegas, May 13, 1916, 
II, Johnston 700. 
The alfalfa rust has not before been reported from Cuba, and 
only one other West Indian station is known for it, Bermuda. 
When it does occur the rust appears to attack its host with much 
virulence, causing the leaves to roll up and shrivel. 
The species is considered to be heteroecious, with aecia on 
upright-growing euphorbias of the genus Tithymalus, but no aecia 
have been found in America, and no cultures have been made with 
American material. 
43. Uromyces Nevurocarp! Dietel, Hedwigia 34: 292. 1895. 
Uromyces insularis Arth. Bull. Torrey Club 33: 515. 1906. 
ON FABACEAE: 
Clitoria rubiginosa Juss., Baracoa (Prov. Oriente), March, 
1903, II, IIT, Underwood & Earle 1386, April 14, 1916, II, 
Johnston 615; Rio de la Casas, Isle of Pines, March 20, 
1916, II, III, Britton & Wilson 15653; Sabanilla (Prov. 
Oriente), April 22, 1916, II, Johnston 631. 
This species was detected also in the phanerogamic herbarium 
of the N. Y. Bot. Garden on the same host from Tabajó at base of 
El Yunque, Dec. 12, 1910, J. A. Shafer 7719. The species has 
been taken also in Porto Rico and Jamaica, but outside of the 
West Indies only in Vera Cruz, Mexico, and Brazil. The species 
is doubtless autoecious, requiring pycnia and aecia to complete 
the life cycle, although they have not yet been discovered. 
