CLINTON: NORTH AMERICAN USTILAGINEAE. 
401 
Sori in the ovaries, often concealed by the perigynium, subspheri- 
cal, about 2-4 mm. in diameter, at first agglutinated but as usually 
seen forming a more or less granular olive black spore mass ; spores 
dark olive brown, usually subopaque, ovoid to subspherical, occasion¬ 
ally more elongated and often somewhat angular, provided with 
coarse, tinted scales showing at circumference as truncate append¬ 
ages, chiefly 14-19 g, most elongated rarely 22 /x, in length. 
Hosts: Car ex lanuginosa , Nev.; C. Michauxiana , Brit. Amer., 
New Bruns.; C. oligosperma , N. F. ; C. trichocarpa var. Deweyi , 
N. Dak.; C. utriculata, Nev., Ore. 
This species is easily distinguished from C. Caricis by the promi¬ 
nent scales on the spores and by the less conspicuous and usually 
granular sorus. It is, apparently, found most commonly in the 
northern regions. Its germination has been reported by Brefeld. 
Literature: 23, 115, 163. 
Cintractia Caricis (Pers.) Magn. 
Uredo caricis Pers., Syn. Fung., 225. 1801. 
Farinaria carbonaria Sow., Engl. Fungi, t. 396, f. 4. 1803. 
Uredo carpophyla Schum., Enum. PI. Sael., 2 : 234. 1803. 
Uredo segetum t] caricis DC., Poir. Enc. Meth. Bot., 8 : 227. 1808. 
Uredo decipiens p Strauss, Ann. Wett. Ges., 2 : 111. 1811. 
Uredo urceolorum DC., FI. Fr., 6 : 78. 1815. 
Caeoma decipiens Mart., FI. Crypt. Erl., 315. 1817. p. p. 
Caeoma urceolorum Schl., FI. Ber., 2 : 130. 1824. 
Caeoma Caricis Lk., Sp. PL, 6 2 : 5. 1825. 
Ustilago utricolorum Fr., Syst. Myc., 3 : 519. 1832. p. p. 
Erysibe baccata Wallr., FI. Crypt. Germ., 2 : 214. 1833. 
Ustilago caricis Ung., Einfl. Bodens, 211. 1836. 
Ustilago urceolorum Tul., Ann. Sci. Nat., Bot., in, 7 : 86 . 1847. 
Ustilago Scirpi Kuhn, Hedw., 12. 150. 1873. 
Anthracoidea Caricis Bref., Unters. Gesammt. Myk., 12: 144. 1895. 
Cintractia Caricis Magn., Abh. Bot. Yer. Prov. Brand., 37 : 78. 1896. 
Ustilago caricis douglasii Shear, Fungi Col., 1485. 1901. 
Exsiccati: Cintractia Caricis (Pers.) Magn., on Carex sp., Syd., List., 
173, on Carex Douglasii , Griff., West Amer. Fungi, 209, 209a, on Carex echi- 
nata var. cephalaiitha, Seym. & Earle, Econ. Fungi Clinton Ust. Supp., C 
5, on Carex marcida, Griff., West Amer. Fungi, 210, on Carex pseudo- 
scirpoidea , Griff., West Amer. Fungi, 211, on Carex Pennsylvania, Seym. 
& Earle, Econ. Fungi Clinton Ust. Supp., C 3, C 4 ; Ustilago Caricis (Pers.), 
on Carex Douglasii , Ell. & Ev., N. A. Fungi, 2259, on Carex Pennsyl¬ 
vania, Ell. & Ev., N. A. Fungi, 1090, Shear, N. Y. Fungi, 81, Seym. & 
