Urocystis gladioli (Requien) W. G. Smith

Urocystis Gladioli (Requien) W. G. Smith, Gard. Chron. II. 6: 421. 1876 Uredo Gladioli Requien; Duby, Bot. Gall. 901. 1830. Erysibe arillata var. Gladioli Wallr. Fl. Crypt. Germ. 3: 211. 1833. Tuburcinia Gladioli Liro, Ann. Univ. Fenn. Aboen. A. 1': 37. 1922.
Sori on the corms and leaves, pustular, small, dark-colored, at first covered by the epidermis; spore-balls dark-reddish-brown, ovoid to spheric, chiefly 45-50 /i in diameter, rarely 65 ^ or as small as 24 m; sterile cells completely covering the spores, brownishyellow, thick-walled, ovoid, sometimes difficult to distinguish from the spores, chiefly 6-10 ;i in diameter; spores dark-reddish-brown, ovoid to spheric, often flatlcned on one side, smooth, chiefly 4-9 in a ball, chiefly 14-17 ii in length.
On Iridaceae:
Gladiolus sp. (cult.), Pennsylvania (Erie Co.); Saskatchewan. Type loc.lit: France, on Gladiolus commnytis. Distribution: Pennsylvania; also in Europe and Japan.