Comprehensive Description
provided by North American Flora
Discospora effusa (Peck) Arthur
Pileolaria effusa Peck, Bot. Gaz. 7: 55. 1882. Uromyces effusus De-Toni, in Sacc. Syll. 7 : 576. 1888.
Pycnia amphigenous and caulicolous, exceedingiy numerous, thickiy scattered along the petioles and veins, preceding or among the telia, papillose, conspicuous, subcuticular, becoming blackish-brown, frustum-like, 60-80// in diameter, two thirds as high.
- bibliographic citation
- Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY
