Comprehensive Description
provided by North American Flora
Coleosporium ribicola (C. & E.) Arthur
Uredo ribicola C. & E. Grevillea 6 : 86. 1878. Uredo Jonesti Peck, Bull. Torrey Club 12 : 36. 1885.
O and I. Pycnia and aecia unknown.
Uredinia hypophyllous, scattered or in small open groups on conspicuous yellow spots, 0.5 mm. across, tardily naked, reddish orange-yellow fading to pale r yellow, becoming pulverulent; urediniospores broadly oval, or globoid, 20-27 by 26-30 fi; wall thick, 3-5 fi, densely verrucose with slender cylindrical tubercles.
- bibliographic citation
- Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY
