Uromyces lupini Berk. & M. A. Curtis 1860

Nigredo lupini (Berk. & Curt.) Arth. R6sult. Sci. Congr
Bot. Vienne 344. 1906.
Uredo Lupini Berk. & Curt. Proc. Am. Acad. 4 : 126. 1858. Uromyces Lupini Berk. & Curt. Proc. Am. Acad. 4 : 126. 1858. Uromyces tomentellus Cooke, Grevillea 6 : 138. 1878. Uromyces Astragali Lupini De-Toni, in Sacc. Syll. Fung. 7 : 550. 1888.
Pycnia chiefiy epiphyllous, gregarious, in small groups, inconspicuous, yellowish becoming brownish, depressed-globose, 128-160 ju in diameter by 91-112 ju high; ostiolar filaments rather short.
Ii Aecia hypophyllous, gregarious, in crowded or annular groups 1.5-5 mm. across on discolored spots, short, cupulate, 0.2-0.3 mm. in diameter ; peridium colorless, the margin recurved, erose ; peridial cells rhomboidal, 23-34 ju long, the outer wall rather thick, 4-7 /x, transversely striate, the inner wall thinner, 2-3 ju, partially striate, moderately verrucose ; aeciospores globoid, 18-24 by 21-29 ju; wall light-yellow or colorless, 1.5-2 /* thick, moderately verrucose.
Uredinia amphigenous, somewhat gregarious, in loose, sometimes annular groups 2-5 mm. across, roundish, 0.5-1 mm. in diameter, rather soon naked, cinnamon-brown, pulverulent, ruptured epidermis conspicuous ; urediniospores subgloboid or broadly ellipsoid, 19-24 by 24-32 jLt; wall dark-yellow, moderately thick, about 2-3 /x, evenly and rather closely echinulate with blunt conical points, the pores 6-8, scattered.