13 
The spores found on Andropogon provincialis are somewhat narrower 
and longer than on A. Hallii , and more often oval than subglobose. 
They were also more variable in size and shape. On A. provincialis the 
spores were 12-19 by 9J-134//, mostly 13-16 by 10-13£//, while on A. 
Hallii they were 13-184 by 11-16//, mostly 13J-15 by 13—14//. Attempts 
to induce germination failed. 
Southwestern Kansas, June, 188S. On Andropogon Hallii , Seward 
County, June 20, and on A. provincialis , Harper County, July 14, 
1888. The affected ovaries on A. provincialis are 2.5-7 by 1.2-S mm , and 
those A. Hallii , 6-8 by 1.4-8 mm . 
This species is clearly distinct from Ustilago Ischaemi Fckl., and U. 
cylindrical Pk. both in size of spores and in beiugconfined to the ovaries. 
Figs. 12-26. 
Ustilago botttelolle n. s. In the enlarged ovaries of Bouteloua 
oligostachya; spores in mass, brownish; when seen singly, dark brown 
or sometimes light brown, oval, subglobose, or elliptical, regular or 
sometimes slightly angular; wall thin (about J//) irregularly, rather 
sparingly, tubereulate-echinulate (spines short, 14-3//apart); contents 
homogeneous or often containing a single large granule, 8-12 by 6- 
10//, mostly 84-10 by 8-9 J/y. Germination in water by means of a sep¬ 
tate promycelial tube bearing one or two elongate cylindrical sporidia 
just below the septa at the end. Promycelial tube simple or rarely 
brauched, hyaline, 2-4 septate, 25-50// by 2-4//. Sporidia cylindrical, 
ends subacute, hyaline, 9-13// by 2-2J//. 
Mixed with the spores in some cases were seen hyaline bodies of 
varying sizes composed of cells somewhat smaller than the spores, ar¬ 
ranged in a sublinear manner. The spores germinated readily in water 
at a temperature of 37° C. and the promycelial tubes often separate 
readily from the spores when they have attained their growth. The 
sporidia were observed budding in a few cases. 
On Bouteloua oligostachya , Manhattan, Kans., autumn and winter, 
1888. In many cases the affected plants could be detected at a glance, 
as the spikelets were retained long after they had fallen from the 
healthy plants. The smutted ovaries are 1.5- 4.6 by 0.8 - J.7 mm . 
The grasses attacked by the three preceding species of fungi are im¬ 
portant for the West. They furnish a very large part of the pastur¬ 
age, and even a considerable portion of the hay crop. The smuts, pre¬ 
venting the formation of seed, will therefore, when abundant, likely do 
damage of much consequence. 
JEciditdi daleje n. s. Spots none; tecidia on the leaflets or rarely 
on the petioles, mostly hypopliyllous but often also sparingly epiphyl- 
Ions, numerous, crowded, occupying from a third to the whole of the 
leaflet, which becomes yellowish in color as far as attacked. Peridia 
white (or pinkish?), usually slender (i-J mra diameter), of moderate 
length (J- 3 mm ), cylindrical or very often constricted above, open from 
the first, never hemispherical; margin crenate, subentire, or crumb- 
