Comprehensive Description
provided by North American Flora
Micropuccinia thlaspeos (Schubert) Arthur & Jackson
Puccinia Thlaspeos Schubert; Ficinus & Schubert, Fl. Dresd. 2: 254. 1823. Puccinia Thlaspidis VuiU. Bull. Soc. Bot. Fr. 32: 184. 1885. Puccinia Vuilleminii De-Toni, in Sacc. Syll. Fung. 7: 692. 1888. Leptopuccinia Thlaspeos Sydow, Ann. Myc. 20: 121. 1922.
O. Pycnia not seen.
III. Telia chiefly hypophyllous, evenly distributed over the surface of the leaf, occasionally scattered on upper surface, small, round, 0.3-0.5 mm. across, not confluent, early naked, pulvinate, light chestnut-brown, becoming cinereous from germination, ruptured epidermis not conspicuous; teliospores oblong or clavate, 14—18 by 32-45 n, rounded above, rounded or more commonly narrowed below, slightly constricted at septum; wall thin, 1-1.5 ju, goldenbrown, thicker above up to 8 ix, smooth; pedicel colorless, persistent, once to once and a half length of spore.
On BrassicacEae :
Thlaspi glaucum A. Nelson, Colorado, Utah.
Thlaspi Nuttallii Rydb., Colorado.
Thlaspi purpurascens Rydb. (T. alpestre Am. Auth.), Idaho. Type locality: Near Dresden, Germany, on Thlaspi montanum. Distribution: Southern Utah and Colorado to central Idaho; also in Europe.
- bibliographic citation
- Joseph Charles Arthur, Edwin Butter worth Mains, Guy Richard Bisby, Herbert Spencer Jackson. 1922. (UREDINALES); AECIDIACEAE (continuatio); BULLARIA, TELEUTOSPORA, MICROPUCCINIA (pars). North American flora. vol 7(7). New York Botanical Garden, New York, NY
