Comprehensive Description
provided by North American Flora
Ravenelia fragrans Long, Bot. Gaz. 35 : 123. 1903
Pycnia unknown
Uredinia amphigenous, often forming witches' brooms, thickiy covering large areas, or later scattered, round, 0.3-0.5 mm. across, often confluent, subcuticular, early naked, cinnamon-brown, ruptured cuticle scarcely noticeable ; paraphyses abundantly intermixed with the spores, mostly cylindrical, or somewhat clavate, 7-12 by 32-50//, wall thickened and pale cinnamon-brown above, nearly colorless below, peripheral ones thinner-walled and more spatulate ; urediniospores ellipsoid or globoid, small, 13-15 by 18-23/* ; wall pale cinnamon-brown, uniformly thin, 1.5-2/^, closely and minutely echinulate, pores 8 or more,
scattered.
III. -Telia amphigenous, scattered, irregular, small, less than 1 mm. across, subcuticular, soon naked, blackish-brown, shining, ruptured cuticle noticeable ; paraphyses none ; teliospore-heads chestnut-brown, 5-7 cells across, 65-85 (J. in oiameter, each spore bearing 3-4 short, blunt, semihyaline papillae, marginal tubercles about 2 to each cell, nearly colorless, cylindrical or somewhat capitate, 5-7 i long, 3-4 ft wide; cysts pendent beneath the head, ovate-oblong, hyaline ; pedicel hyaline, short, deciduous.
On Mimosaceae :
Mimosa fragrans A. Gray, Texas. Type locality : Austin, Texas, on Mimosa fragrans. Distribution : Central Texas.
- bibliographic citation
- Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY