Comprehensive Description
provided by North American Flora
Physopella vitis (Thiim.) Arth. Result. Sci. Congr. Bot
Vienne 338. 1906.
Uredo Vitis Thiim. Pilze Weinst. 182. 1878.
Uredo Vialae Lagerh. Compt. Rend. Acad. Sci. Paris 110 : 729. 1890. Uredo Viticis Juel, Bih. K. Sv. Vet.-Akad. Handl. 23(3)1° : 26. 1897. Phakopsora Vitis Sydow, Hedwigia Beibl. 38 : 141. 1899.
Uredinia hypophyllous, scattered thickiy over wide areas, round, minute, 0.1 mm or less across, soon naked, arising" between epidermis and mesophyl, surrounded by numerous incurved paraphyses, pulverulent, pale-yellow, fading to dirtywhite, ruptured epidermis inconspicuous; urediniospores broadly ellipsoid or obovate, 13-17 by 18-27 p wall nearly colorless, thin, lfi y minutely and rather closely echinulate, pores obscure; paraphyses hyphoid, curved and irregular, 6-10^ thick, 30-60// long, wall uniformly thin, I//, yellowish.
- bibliographic citation
- Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY
