Arthur: Uredinales of Porto Rico 
185 
A collection on the same species of host was also made at 
Mayagiiez, January, 1911, by E. W. D. Holway. 
The type of the species came from Jamaica, as the name indi- 
cates, and is on an undetermined species of Bauhinia, having a 
similar leaf to that of R. pauletia, but doubtless specifically dif- 
ferent from it. The spores of the type are slightly smaller for 
the most part than are those from the Porto Rican material. One 
collection has been examined from Mexico on B. divaricata. All 
collections agree in showing only telia, and in having the appear- 
ance of a micro-form, that is, in being short-cycled and incapable 
of germination immediately upon maturity. 
24. Uromyces appendiculatus (Pers.) Fries, Summa Veg. 
Scand. 514. 1849. 
Nigredo appendiculata Arth. Result. Sci. Congr. Bot. Vienne 
343. 1906. 
On Fabaceae: 
Phaseolus adenanthus G. Meyer, Vega Baja, Feb. 22, 574 
bis; Mayagiiez, May 8, 1139. 
Phaseolus vulgaris F., Cabo Rojo, June 15, 2270. 
Vigna repens (L.) Kuntze, Arecibo, May 21, iy6o. 
Vigna vexillata (F.) A. Rich., Mayagiiez, June 14, 2216. 
The species has also been collected in Porto Rico on P. aden- 
anthus by E. W. D. Holway, Caguas, January, 1911, by Mr. & 
Mrs. A. A. Heller on a phanerogamic specimen, Rio Piedras, 
April, 1889, 1221, and by Britton & Cowell on a phanerogamic 
specimen, near Arecibo, March 14, 1908, ; and also on P. 
zndgaris by F. S. Earle, La Carmelita, June, 1903, no, and by 
G. P. Clinton, same locality, Apr. 18, 1904, 724. The last col- 
lection bears teliospores as well as urediniospores. 
On phanerogamic specimens in the herbarium of the New York 
Botanical Garden the uredinial stage has been found on both 
Vigna repens and V. vexillata from Cuba. 
While the pores in the urediniospores of this species are usually 
two or three, and equatorial, as given in the N. Am. Flora 7 : 257, 
they are sometimes four in number, and sometimes are distinctly 
superequatorial. The Stevens’ collections from Porto Rico show 
