Puccinia gnaphalii (Speg.) Henn. 1902

Puccinia gnaphalii (Speg.) P. Henn. Hedwigia Beibl.
66. 1902.
Uredo Gnaphalii Speg. Anal. Soc. Ci. Argent. 12: 73. 1881. Puccinia gnaphaliicola P. Henn. Hedwigia Beibl. 38: 68. 1899. Puccinia Gnaphalii Speg. Anal. Mus. Nac. Buenos Aires 19: 309. 1909.
Uredinia mostiy hypophyUous, numerous, scattered or gregarious, occasionaliy concentrically arranged, roundish, 0.2-0.7 mm. across, early naked, pulverulent, pale cinnamonbrown, ruptured epidermis at first conspicuous; urediniospores globoid or broadly ellipsoid, 18-23 by 23-26 m; wall cinnamon-brown, 1.5-2.5 /x thick, finely and closely echinulate, the pores 2, rarely 3, equatorial or slightly superequatorial.
III. Telia hypophyUous, in arrangement, size, etc., conforming to the uredinia, compact, chestnut-brown; teliospores oblong, oblong-ovate, or oblong-clavate, 18-24 by 32-56 m, rounded or rarely somewhat acute above, narrowed below, slightly constricted at septum; wall lightbrown, thickened to 8 ;u at apex, smooth; pedicel colorless below, tinted above, about as long as spore; mesospores occasionally intermixed with the teliospores.
On Carduaceab:
Gnaphalium purpureum L., Louisiana, South Carolina.
Gnaphalium rhodanthum Schultz-Bip., Guatemala.
Gnaphalium spathulatum Lam., Alabama, North Carolina. Type locality: Chacarita, Argentina, on Gnaphalium americanum. Distribution: North Carolina to Louisiana, and in Guatemala; also in South America.