43<S PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
species, however, are quite distinct. The germination of T. Mcic- 
lagani is not known. Literature : 4, 29. 
* * * * Spores with prominent tubercles , spines, or scales. 
Tilletia Earlei Griff. 
Tilletia Earlei Griff., Bull. Torr. Bot. Club, 29 : 290-291. 1902. 
Exsiccati : Tilletia Earlei Griff., on Agropyron occidental, Griff., West 
AUier. Fungi, 311. 
Soii in culms usually affecting next to upper internode, forming a 
somewhat swollen body 1-10 cm. in length, rupturing by longitudi¬ 
nal fissuies which disclose semidusty light brown spore mass; ster¬ 
ile cells smaller than spores, often with thick smooth wall; spores 
slightly tinted to light golden brown, chiefly subspherical or spheri¬ 
cal, occasionally ovoid, with coarse bluntish tubercles extending out 
about 2 p to the evident hyaline envelope, chiefly 18-22 p in diam¬ 
eter. 
Host: Agropyrum occidental S. Dak. - (type). 
This species, recently described by Griffiths, is distinguished 
among the American Tilletias by having its sori in the culms 
instead of in the ovaries. The germination of the spores has not 
been reported. Literature : 72. 
Tilletia Tex an a L ong. 
Tilletia Texana Long, Journ. Myc., 8: 149. 1902. 
Sori in ovaries, ovoid or oblong, about 3-5 mm. in length, often 
more or less hidden by enveloping glumes, forming a somewhat 
agglutinated light reddish brown spore mass ; sterile cells not very 
numerous, hyaline, with very thick often lamellate walls and central 
contents; spores very light colored orange yellow (appearing as if 
somewhat immature) chiefly subspherical or spherical, with promi¬ 
nent conical tubercles (blunt or sometimes quite pointed) which 
extend out 2-3 p to the evident hyaline envelope, chiefly 19-25 p in 
diameter (including envelope). 
Host: Ilordeumpratense, Tex. (type). 
In Lurope Tilletia Hordei occurs as a parasite on a species of 
Ilordeum, but that smut possesses reticulate spores and so is quite 
