148 ARTHUR: NEW SPECIES OF UREDINEAE 
On Achyranthes obovata. (Mart. & Gal.) Standley, Oaxaca, 
Mexico, October 24, 1899, E. W. D. Holway 3732. The species 
is remarkable for its large, coarsely verrucose teliospores, which 
greatly resemble those of the euphorbiaceous species, P. Euphor- 
biae P. Henn. In that species the uredinia are sometimes accom- 
panied by pycnia. In the present species the annular groups of 
uredinia appear like a primary stage, but no pycnia could be found 
by sectioning or otherwise. 
Puccinia incondita sp. nov. 
III. Telia hypophyllous and caulicolous, densely pressed or 
confluent into more or less rounded pulvinate masses, I-3 mm. 
across, dark cinnamon-brown, early naked, ruptured epidermis 
inconspicuous; teliospores irregularly ellipsoid or oblong, 16-20 
by 23-29 un, rounded at both ends or somewhat narrowed below, 
slightly or not constricted at septum: wall cinnamon-brown, 
1.5-2.5 uw thick, not or somewhat thicker above up to 6 », smooth; 
pedicel colorless, sometimes longer than spore, usually breaking 
near the spore. 
On Solanum triquetrum Cav.., Austin, Texas, January 5, 1916, 
B. C. Tharp. A short-cycle rust which appears to be different 
from any species on Solanum heretofore described. 
Puccinia adducta sp. nov. 
O. Pycnia epiphyllous, in small orbicular groups, dark brown, 
noticeable, subepidermal, globoid, 80-105 » broad. 
II. Uredinia hypophyllous, at first grouped opposite the pycnia 
on larger yellowish spots 2-5 mm. across, afterward scattered, small, 
round, rather tardily naked, cinnamon-brown, surrounding epi- 
dermis noticeable; urediniospores broadly obovoid, 19-23 by 27- 
35m; wall pale cinnamon-brown, 1-2 y thick, moderately and 
strongly echinulate, the pores indistinct, possibly 3 and equatorial. 
III. Telia hypophyllous, following the uredinia in the same 
sori; teliospores ellipsoid or oblong, 19-26 by 35-40 uw, obtuse or 
rounded at both ends, slightly or not constricted at septum, wall 
cinnamon-brown, I-24 thick, usually with a slight papilla-like 
thickening at apex, smooth; pedicel short, rather thick, often 
deciduous. 
On Solanum racemosum Jacq., Antigua, West Indies, Feb- 
ruary 4-16, 1913, Rose, Fitch & Russell 3473. A seemingly dis- 
tinctive species. 
