Comprehensive Description
provided by North American Flora
Nigredo zygadeni (Peck) Arth. Result. Sci. Congr. Bot
Vienne 344. 1906.
Uromyces Zygadem Peck, Bot. Gaz. 6 : 239. 1881. Caeom-urus Zygadeni Kuntze, Rev. Gen. 3^ : 451. 1898. Uromyces Fraserae Arth. & Ricker, Jour. Myc. 8 : 128. 1902.
Pycnia amphigenous, gregarious, punctiform, honey-yellow, inconspicuous, immersed, small, globoid, 85-115m wide; ostiolar filaments 40-50 /z long.
- bibliographic citation
- Joseph Charles Arthur, Frank Dunn Kern. 1912. (UREDINALES); AECIDIACEAE (continuatio), GYMNOSPORANGIUM. North American flora. vol 7(3). New York Botanical Garden, New York, NY
