Arthur: Uredinales of Porto Rico 
325 
In the same herbarium it occurs on P. purpurascens from St. 
Domingo, collected March 1913, by Rose, Fitch & Russell 42P4. 
Heretofore the species has only been known from southern 
Florida. 
97. Uredo vicina sp. nov. 
Uredinia hypophyllous, scattered, round, 0.3-0.5 mm. across, 
soon open, dark cinnamon-brown, pulverulent, ruptured epi- 
dermis evident; urediniospores globoid, often flattened above, 
24-29 /A in diameter; wall chestnut-brown, 1.5-2 /x thick, closely 
echinulate, the pores 4, equatorial. 
On Carduaceae: 
Wedelia lanceolata DC., Guanica, Feb. 3, ^65, Feb. 10, ‘ 
SSsbis (type). 
The spores of this species are entirely unlike the uredinio- 
spores of Uromyces pianhyensis, on another species of Wedelia, 
especially in size and in having decidedly thicker walls with more 
pores that are clearly evident. 
98. Uredo Sparganophori P. Henn. Hedwigia 43 : 160. 1904. 
On Carduaceae: 
Struchium Sparganophorum (L.) Kuntze (Spargano- 
phorum Vaillantii Gart.), Mayagiiez, April 29, 523, 
April 30, pi I. 
Although the leaves were well covered with uredinia, no trace 
of telia or aecia could be found. The same rust was detected in 
the phanerogamic collection of the N. Y. Bot. Garden on the 
same host from Green Island, Jamaica, March, 1908, Wm. 
Harris 10254. 
99. Uredo Gymnogrammes P. Henn. Hedwigia 34: 337. 1895. 
On Polypodiaceae : 
Dryopteris Poiteana (Bory) Urban, Villa Alba, Jan. 3, 86. 
The same fungus was collected in Jamaica on Dryopteris patens 
(Sw.) Kuntze, May, 1903, by L. M. Underwood 286p, and in 
Cuba, on Pi tyro gramma calomelaena (L.) Link, March, 1903, 
by E. W. D. Holway. 
