150 
The specimen of T. controver sa in Rabenh., Fung. Eur., 1896, is 
authentic material and was communicated by Kühn. Ana uthentic 
specimen of T. ee Passer., from the author also examined. 
Fig. 18, spore of T. controversa. 
14. Tilletia cerebrina, Ellis «nd Everh. in Journ. Myc. iii. cum 
6.—Spore-mass formed in the ovary, dark brown or black 
spores globose or sub-globose 23-28 » and up to 30 p long Ln 
oe an ier brown, border about 2:5 p thick, paler; epi- 
mented with thickish ridges which are more or less 
x pede ry branched, the branches not unfrequently combining 
here and there to form an irregular Be but free ends of 
the ridges are usually present in considera numbers ; mesh 
varying from 2-5 „ diam.—Sacc., Syll. vii. (1888), no. 1768. 
Host.—Deschampsia cespitosa, Beauv. 
HaB.—United States; Rocky Mountain region. 
Characterised by the bands on the epispore being irregularly 
branched and as a rule having numerous free ends, although in 
some spores the reticulation is fairly uniform and free ends rare 
or absent. Authentic specimen from Ellis examined. 
Fig. 12, spore of T. cerebrina. 
15. Tilletia buchloeana, Keller & Swingle in Journ. Myc. v. 
(1889), 11.—Spore-mass formed in the ovary, dirty brown ; spores 
globose or very slightly oval, 16:5-18 x 20-21 y, brownish ; 
epispore marked with scattered regular spines or faint reticula- 
tions (formed by ale of the spines :5-1:5 p high, covered 
by the outer hyaline layer, which is 1:5-4 p thick. iion Syll. ix. 
(1891), no. 1178. 
Host.—Buchloe dactyloides, Engelm. 
HAB.—United States ; Kansas. 
The fungus is borne on the male plants. In its presence often 
all or nearly all the staminate spikelets produce the ovaries, all 
of which are infested. The few female plants collected in the — 
same localities were free from the fungus (Keller & Swingle). 
Judging from the figures the spores are reticulated at maturity. 
Not examined. 3 
16. Tilletia separata, Kunze, in Josh. Kunze, Fung. Select. Eas. : 
(1874), 29.—Spore-mass formed in the ovary, blackish brown, — 
foetid ; spores oe ih, parre = angularly globose, or broadly _ 
elliptic, clear brown, 20--27 p diam., border a boot 3 p wide, not 4 
appreciably sales | ; epispore ioa raised eta anastomosing io | 
form an irregular, small-meshed network, mesh a veraging 15-250 — 
diameter.—Wint. in Rabenh., m t -Flora, Pilze i. (1884), 11153 
Sacc., Syll. vii. (1888), no, 1760. T. decipiens, Wint. in Rabenh., 
