308 BOTANICAL GAZETTE [APRIL 
and similarly placed between pedicel and septum in the lower cell; 
noticeably and evenly rugose; pedicel short, colorless, deciduous. 
On Vernonia patens HBK., Orotina, Costa Rica, January 1, 1916, 
Holway 343; Vernonia sp., Colombia, Panama, September 1890, G. Lagerheim. 
(2336) on V. Tweediana, at Gavea, Rio de Janeiro, Brazil, June 1897. The 
first specimen mentioned has not been examined by the writer, but a specimen 
on V. Tweediana from the herbarium of Hotway, collected by Ule at Jacare- 
pagua, Rio de Janeiro, October 1897, bearing the same number (2336) as the 
Gavea specimen, has been studied. This material agrees with Sydow Ured. 1605 
on the same host from Gavea, Brazil, collected by Héhnel, August 1899 and 
referred to P. rugosa Speg. A specimen in the herbarium of the New York 
herbarium of the New York Botanical Garden and is marked P. panamensis 
Lagerh. n. sp., which was apparently never described. Mayor (Mem. Soc. 
Neuch, Sci. Nat. 5:511, 512. 1913) reports this species as P. rugosa Speg.; 
on V. patens and V. scabra, from Colombia, having made several collections on 
the former host and one on the latter. None of Mayor’s collections have been 
seen, but a specimen was obtained on V. scabra in the phanerogamic collection 
of the Field Museum (sheet 137666) made at Santa Marta, Colombia, December 
1898-1901 by H. H. Smith (613). The type of P. rugosa has not been seen. 
The description and range indicate, however, that it is identical with sg 
rotundata, as has been previously assumed by Sypow (Monog. Ured. 1:176- 
1902). P. rugosa was described as occurring on an unknown composite, 
questionably Verbesina. Its exact status will remain somewhat in doubt until 
authentic material can be compared. 
22. Puccinia discreta Jackson and Holway, sp. nov. 
QO. Pycnia epiphyllous, surrounded by the telia, few, gregarious,. 
noticeable, subepidermal, golden brown fading to dark brown, 
globoid or depressed globoid, go-100 by 100-130 w; ostiolar fila- 
ments short. 
III. Telia chiefly epiphyllous, densely gregarious and confluent 
in groups 0. 5~3 mm. across, on yellowish hypertrophied spots, often 
arranged in a concentric manner around the pycnia, roundish or 
somewhat irregular, 0.2-0.6 mm. across, early naked, at first 
punctiform, becoming pulverulent, dark cinnamon brown, ruptured 
epidermis conspicuous; teliospores ellipsoid, 18-22 by 32-42#, 
