JACKSON: UREDINALES OF OREGON 
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120. Puccinia insperata sp. nov. 
O. Pycnia not seen. 
I. Aecia chiefly hypophyllous and_ petiolicolous; in crowded 
groups on yellowish spots 2—3 mm. across; cupulate, 0.2—.25 mm. 
broad; peridium whitish, margin recurved, lacerate; peridial cells 
rhombic, 19-27 by 35-45 u, overlapping, outer wall I-1.5 w thick, 
inner wall 3-4 4 thick, verrucose; aeciospores globoid or broadly 
ellipsoid, 15-19 by 19-23 p, wall colorless, 1-1.5 uw thick, finely and 
closely verrucose. 
II. Uredinia amphigenous, scattered, round, 0.2-0.5 mm. across, 
tardily naked, pulverulent, pulvinate, cinnamon brown, ruptured 
epidermis conspicuous; urediniospores subglobose or broadly ellip- 
soid, occasionally obovate, 19-21 by 23-29 uw; wall cinnamon brown, 
1.5-2 uw thick, minutely and closely echinulate, pores 2—3, scattered. 
Ill. Telia amphigenous and petiolicolous, scattered, round, 0.2- 
0.8 mm. across, tardily naked, pulvinate, becoming pulverulent, 
blackish brown, ruptured epidermis conspicuous; teliospores ellipsoid 
or broadly obovoid, occasionally somewhat irregular, 16-20 by 23-32 u, 
rounded at both ends, scarcely or not at all constricted, wall chestnut 
brown, 1.5-2 uw thick, uniform, smooth; pedicel colorless, deciduous. 
ON CICHORIACEAE: 
Nabalus hastatus (Less) Heller—Hood River, May 16, 1915, 2662, 
July 24, 1915, 3265, type. 
A very distinct species separable from the eastern P. orbicula 
Pk. by the smooth teliospores and the presence of a definite peridium 
in the aecidium. The two collections were made at the same spot. 
The first shows aecia unaccompanied by pycnia, associated with 
telia chiefly on the petioles, suggesting strongly an opsis-form. The 
second collection, however, shows scattered uredinia and telia with a 
few old aecia. 
ii. PuccintA Iris (DC.) Wallr in Rabenh.. Krypt. Fl. in3 23: 
1844. 
Uredo Indis DC. Encycl. 8: 224. 1808. 
ON IRIDACEAE: 
Iris tenax Dougl.—Corvallis, June 24, 1914, F. D. Bailey, 1343; 
Wren, Benton Co., July 22, 1914, 1473, Ashland, Jackson Co., Sept. 
IO, 1914, 1904. 
122. PuCCINIA JONESII Pk. Bot. Gaz. 6: 226. 1881. 
Allodus Jones Arth. Résult Sci. Congr. Bot. Vienne 345. 1906. 
ON UMBELLIFERAE: 
Peucedanum triternata (Pursh) Nutt.—Austin, Grant Co., Aug. 
1915, J. R. Weir, 149, 157. 
