Puccinia caricis-polystachyae Dietel 1906

Dicaeoma caricis-polystachyae (Dietel) Arthur & Kern.*
Puccinia Caricis-polystachyae Dietel, Ann. Myc. 4: 306. 1906. Puccinia Kellermanii Kern, Mycologia 9: 210. 1917.
O and I. Pycnia and aecia unknown.
Uredinia chiefiy hypophyllous, scattered, oval or oblong, 0.4-0.7 mm. long, rather soon naked, pulverulent, pale cinnamon-brown, ruptured epidermis noticeable; urediniospores eUipsoid or obovoid, 18-26 by 25-32 m; wall light golden-brown, about 1.5 ju thick, moderately and distinctly echinulate, the pores 2, or sometimes 3 or 4, equatorial.
III. Telia chiefly hypophyllous, sometimes on the upper part of the culm or rachis, scattered, oval or oblong, 0.4-1 mm. long, early naked, chocolate-brown, ruptured epidermis noticeable; teliospores clavate-oblong, 16-21 by 30-45 m. rounded or sometimes narrowed above, usually narrowed below, slightly constricted at septum; wall goldenor chestnutbrown, 1-1.5 M thick, much thicker above, 5-10 /x; pedicel tinted next to the spore, once to once and a half length of spore.
On Cyperaceae:
Carex madrensis L. H. Bailey, Morelos.
Carex polystachya Wahl. (C. cladostachya Wahl.), Guatemala; Oaxaca Type locality: Oaxaca, Mexico, on Carex polystachya. Distribution: Southern Mexico and Guatemala.