Arthur: Uredinales of Porto Rico 
175 
The two species of Ficus rust described in N. Am. Flora (7: 
103. 1907) are here united. It was found in carefully study- 
ing the ample collections by Dr. Stevens that they showed great 
variation in size of spores and development of paraphyses. 
Upon comparing data from all sources available there remained 
no doubt that only one species is represented, whether para- 
physes with thick or thin walls are present in full development 
or practically absent, or whether the spores are larger or smaller, 
etc. 
The genus Kuehneola is here associated with Physopella, 
Phakopsora, Pucciniastrum, etc., in the Uredinaceae, instead of 
with Phragmidium in the Aecidiaceae, as heretofore. The 
change is made on account of the evident unpedicelled, catenulate 
teliospores, corresponding to those of Melampsoropsis and other 
genera of the former family, but clearly alien to the Aecidiaceae. 
6. Kuehneola Gossypii (Lagerh.) Arth. N. Am. Flora 7: 187. 
1912. 
Aecidium desmium Berk. & Br. Jour. Linn. Soc. 14: 95. 1873. 
Uredo Gossypii Lagerh. Jour. Myc. 7 : 48. 1891. 
On Malvaceae: 
Gossypium barbadense L., Isabela, Nov. 22, j226 ; Mona 
Island, Dec. 20, 21, 6141. 
Gossypium brasiliense Macf., River junction below 
Utuado, Dec. 7, 6052. 
The rust was found on G. hirsutum L. at Mayagiiez, P. R., 
May, 1903, by F. S. Earle, y8. 
The only other specimen in the Arthur Herbarium from the 
West Indies is one collected on a species of tree cotton at Santiago 
de las Vegas, Cuba, Aug., 1904, by C. F. Baker (Barth. Fungi 
Columb. 248^), although the rust is doubtless rather common 
in the warm regions adapted to cotton growing. 
7. Milesia columbiensis (Diet el) comb. nov. 
Milesina columbiensis Dietel; Mayor, Mem. Soc. Neuch. Sci. 
5:559- 1913- 
On Polypodiaceae : 
Nephrolepis rividaris (Vahl) Urban, without locality, 
Nov., 4504; Agucaltaria, Nov. 25, 48 
