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Comprehensive Description

provided by North American Flora
Uropyxis roseana Arthur, sp. nov
Pycnia amphigenous, few in small groups surrounded by uredinia, brownish-yellow, punctiform, inconspicuous, subcuticular, frustum-like, small, 80-110// broad by 60-80// high.
Uredinia amphigenous, in small annular groups, often confluent on slightiy discolored spots, round or oblong, 0.3-0.8 mm. long, soon naked, pale cinnamon-brown, pulverulent, ruptured epidermis conspicuous ; paraphyses none ; urediniospores obovate or ellipsoid, 17-22 by 23-27 // ; wall thin, 1-1.5//, pale-yellow, echinulate-verrucose, pores numerous, 12 or more, scattered, obscure.
III. Telia not seen ; teliospores in the uredinia elliptical, 18-23 by 29-37 //, rounded at both ends, slightly constricted at septum ; wall laminate, inner layer cinnamon-brown, 1.5-2.5 // thick, pores 2 in each cell, lateral and opposite, outer layer colored, barely perceptible, verrucose with fine points 2-3// apart; pedicel colored, very short, not swelling in water, slender.
On Fabaceae :
Cracca Talpa (S. Wats.) Rose, Queretaro. Type collected at Hacienda Ciervo, State of Queretaro, Mexico, August 20, 1905, /. N. Rose
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cc-by-nc-sa-3.0
bibliographic citation
Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY
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