142 
Journal of Mycology 
[Vol. 8 
natum, Ill., Mo.; P. pennsylvanicum, Ill., Kans., Mo., N. Y.; ?P. 
virginianum, Mo.; Polygonum sp., D.C., la., Mo., N. J., Tex. 
CINTRACTIA TAUBERTIANA (Henn.) Clint, n. nom.— 
Ustilago taubertiana Henn., Engl. Bot. Jahrb. 17:525. 1893. 
Hosts: Rhynchospora alba, Mass., N. J.; R. cephalantha, 
Miss.; R. fascicularis, Fla.; R. inexpansa, S. Car.; Rhynchos¬ 
pora, ? Tex. 
This smut has smaller and usually lighter colored spores 
than Cintractia montagnei. 
CINTRACTIA MONTAGNEI (Tul.) Magn.—Ustilago 
caricis Auct. p.p. PUstilago juncicola Speg., Fungi Guar. 15. 
1891. 
Hosts: Rhynchospora alba, Me., Newf., N. Y., Verm.; R. 
eximia, Mex.; R. glomerata, Mass., Miss., N. Y.; R. tenuis, Mex.; 
Rhynchospora sp., N. Car., S. Car. 
CINTRACTIA PSILOCARYAE (Tr. & Earle) Clint, n. 
nom.—Ustilago psilocaryae Tr. & Earle, Bull. Torr. Bot. Club 
26493. 1899- 
Hosts: Psilocarya nitens, Fla., Miss, (type) ; P. scirpoi- 
des, Mass., R. I. 
CINTRACTIA CARICIS (Pers.) Magn.—Ustilago caricis 
Ung., Einfl. Bodens 211. 1836. Anthracoidea caricis Bref., 
Unters. Gesammt. Myk. 12:144. 1895. Cintractia caricis 
Magn., Abh. Bot. Ver. Prov. Brand. 37:78. 1896. Ustilago 
caricis douglasii Shear, Fungi Col. 1485. 1901. 
Hosts: Carex sps., distributed over North America; Kob- 
resia caricina, N. Amer.; K. scirpina, Greenl.; Scripus caespito- 
sus, Greenl. 
The writer has listed this smut on over forty species of 
Carex. 
CINTRACTIA EXTERNA (Griff.) Clint, n. nom.—Til- 
letia externa Griff., Bull. Torr. Bot. Club 29:290. 1902. 
Host: Carex fllifolia, Mont, (collected by F. W. Anderson, 
Apr. 1888 at Sand Coulee), Neb. (collected by T. A. Williams. 
Tune 23, 1890, at War Bonnet Canon), Wyo. (type T. externa). 
This species' was first collected nearly fifteen years ago by 
Anderson who distributed it to several herbaria under the name 
of Ustilago caricis. Later it was collected by Williams. Recently 
it has been described from Wyoming, as a new species, bv Grif¬ 
fiths. The writer had it described (in manuscript) as a new spe¬ 
cies when Griffiths description came to hand. It is related to C. 
caricis but differs by having more regular, smooth spores with 
evident hyaline enveloping membranes. These membranes are 
evidently hygroscopic and by means of the absorbed water the 
