Comprehensive Description
provided by North American Flora
Dicaeoma abruptum (Dietel & Holway)
Arthur & Jackson.
Puccinia ahrupta Dietel & Holway; Dietel, Hedwigia 37: 208. 1898 Puccinia suhglobosa Dietel & Holway; Holway, Bot. Gaz. 31: 332. 1901. Puccinia Ximenesiae Long, Bull. Torrey Club 29: 114. 1902. Puccinia affinis Sydow, Monog. Ured. 1: 174. 1902. O and I. Pycnia and aecia unknown.
Uredinia amphigenous, chiefiy epiphyllous or caulicolous, scattered or occasionaliy confluent, roundish or elongate when caulicolous, 0.5-1.5 mm. across, early naked, pulverulent, cinnamon-brown, ruptured epidermis noticeable; urediniospores variable, broadly ellipsoid, obovoid, or cuneate, 19-26 by 22-32 m; wall light or dark cinnamon-brown, variable in thickness, 1.5-3 /i, moderately and strongly echinulate, markings often deciduous, the pores 2, equatorial or on some hosts subequatorial, occasionally 3, with one at apex, often with a smooth area around pores.
- bibliographic citation
- Joseph Charles Arthur, Herbert Spencer Jackson, Clayton Roberts Orton. 1921. (UREDINALES); AECIDIACEAE (continuatio); DICAEOMA ON CARDUACEAE; ALLODUS. North American flora. vol 7(6). New York Botanical Garden, New York, NY
