Comprehensive Description
provided by North American Flora
Nigredo Ruelliae (Holway) Arthur
Uromyces Ruelliae Holway, Ann. Myc. 2 : 394. 1904. Uredo Beloperonis Arth. Bull. Torrey Club 37 : 576. 1910.
O and I. Pycnia and aecia unknown.
Uredinia chiefiy hypophyllous, numerous, scattered, sometimes crowded, roundish or oblong, 0.1-0.3 mm. across, tardily naked, pulverulent, chestnut-brown, ruptured epidermis conspicuous ; urediniospores obovate or ellipsoid, 15-23 by 21-29 jLt ; wall goldenyellow, 1.5-2.5 M thick, rather sparsely and strongly echinulate, the pores indistinct, 2, equatorial.
- 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
