Arthur: Uredinales of Porto Rico 
243 
Pnccinia obliqua Berk. & Curt., collected in Cuba, by Charles 
Wright. The material consists of a complete leaf, the blade of 
which is ovate, four by eight millimeters, entire and smooth, with 
a petiole five millimeters long. The under surface of blade and 
petiole is quite evenly covered with about eighty pulvinate, promi- 
nent, brown sori. Both gross and microscopic appearance of the 
fungus that has of recent years been assigned to Pnccinia sphae- 
rospora S. & H. agree with this specimen. The host is undoubt- 
edly some Asclepiadaceous plant, probably a Vincetoxicum or 
Philibcrtia. 
The closely related species, Pnccinia Gonolobi Rav., has been 
collected in the Bahamas on Metastelma palnstre (Pursh) Schl., 
Aug., 1904, E. G. Britton jp<5, Jan., 1903, and IVIarch, 1905, A. E. 
Wight, on Philibertella clausa (Jacq.) Vail, Feb., 1905, E. G. 
Britton 34^3, and in Cuba on the last host, March, 1910, Britton, 
Earle & Wilson 6022. 
58. PucciNiA CRASSiPES Berk. & Curt. Grevillea 3 : 54. 1874. 
Pnccinia Ipomoeae Cooke; Lagerh. Tromso Mus. Aarsh. 17: 
61. 1895. 
On Convolvulaceae : 
Ipomoea triloba L., Mona Island, Dec. 20, 21, 6086, 6236, 
6239. 
The collections show both aecia and telia in good condition, as 
also does a collection from Santa Ysabel, P. R., J. R. Johnston 
203, Jan., 1912. 
Collections have been seen also from St. Croix, on I. triloba, 
and from Cuba, on I. acuminata (Vahl) R. & S. (/. cathartica 
Poir.) by Earle & Wilson 1140 (Barth. Fungi Columb. 2456), 
and on I. trichocarpa Ell. (/. Carolina Pursh not L.) by Britton, 
Earle & Wilson 4827. 
59. PucciNiA Lantanae Earl. Proc. Amer. Acad. Sci. 
18; 83. 1883. 
On Verbenaceae: 
Lantana Camara L., Guanica, Feb. 3, 338, Dec. 29, 6607; 
Lares, Nov. 22, 4926; Guayanilla, Nov. 13, 5952, Dec. 
29, 6603. 
