398 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Cintractia Taubertiana (P. Henn.) Clint. 
Ustilago Taubertiana P. Henn., Engl. Bot. Jahrb., 17 : 525. 1893. 
Cintractia Taubertiana Clint., Journ. Myc., 8 : 142. 1902. 
Similar to C. Montagnei except spores medium to light brown, 
usually angular, lateral wings apparently entirely lacking, usually 
8-13 /jl in length. 
Hosts : Rhynchospora alba , Mass., N. J.; R. cephalantha , Miss.; 
R. fascicularis , Fla. ; R. inexpansa , S. Car.; Rhynchospora sp. ?, 
Tex. 
In looking over the specimens of Rliynchospora in the Gray 
herbarium for'smuts, the writer found a number of specimens that 
in the smaller lighter colored spores were quite distinct from 
Cintractia Montagnei. These correspond closely with specimens 
of Ustilago Taubertiana P. Henn. issued by Uie from Brazil and so 
have been placed here under that species. This smut has not been 
germinated. 
Cintractia Montagnei (Tul.) Magn. 
Ustilago Montagnei Tul., Ann. Sci. Nat., Bot., m, 7 : 88. 1847. 
Microbotryum Montagnei Lev., Ann. Sci. Nat., Bot., in, 8: 372. 1847. 
Ustilago Montagnei var. major Desrn., Plant. Crypt., ii, 1726. 1850. 
Ustilago Rhynchosporae Saut., Ivlotz. Herb. Viv. Myc. Fung., 1896. 1854. 
? Ustilago juncicola Speg., Fungi Guar., 15. 1891. 
Cintractia Montagnei Magn., Abh. Bot. Ver. Prov. Brand., 37 : 79. 1896. 
Ustilago Caricis, Auct. 
Exsiccati: Cintractia Montagnei (Tul.) Magn., on Rhynchospora alba , 
Seym. & Earle, Econ. Fungi Clinton Ust. Supp., C 7. 
Sori in ovaries, usually rather completely hidden by the envel¬ 
oping glumes, oblong to subspherical, small, powdery or less com¬ 
monly firm ; spores brown or black brown, somewhat compressed 
laterally and so showing oblong to polygonal or subcircular 
according to view, usually with remains of enveloping membrane 
showing as prominent hyaline lateral wings, minutely pitted, 12-19 
/x, chiefly 13-16 y, in length. 
Hosts: Rhynchospora alba , Conn., Me., N. Y., Vt., N. F.; 
R. ciliata,' Fla.; R. eximia, Mex.; R. glomerata , Mass., Miss., 
N. Y.; R. tenuis, Mex. ; Rhynchospora sp., N. Car., S. Car. 
This species is often placed with Cintractia Caricis and in some 
