Comprehensive Description
provided by North American Flora
Nigredo scleriae (P. Henn.) Arth. Result. Sci. Congr. Bot
Vienne 344. 1906.
Uromyces Scleriae P. Henn. Hedwigia Eeibl. 38 : 67. 1899. O and I. Pyctiia and aecia unknown.
Uredinia hypophyllous, oblong, 0.2-0.5 mm. long, long covered by the epidermis, finally pulverulent, cinnamon-brown; urediniospores obovoid or ovoid, 18-26 by 23-35 ^u; wall 1.5-2.5 M thick, thicker at apex, 3-9 m, rather sparsely echinulate with conical papillae^ the pores 3, approximately equatorial, obscure.
- 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
