284 British Uvedinee and Ustilaginee. 
Lxsiccati, 
Baxter, 113. Cooke, i. 53. Vize, ‘“‘ Micro. Fungi,” 130, 
On Triticum vulgare. 
BIOLOGY.--See p. 86. 
Tilletia decipiens. (Pers.) 
Spore-masses black, compact, produced within the ovary, fetid. 
Teleutospores globose, reticulated, ridges 2'5-3u high and 
about 4p apart, dark brown, 24-28, in diameter. 
Synonyms. 
Schrot., doc. cit, p. 278. Winter, oc, cit, p. 111. 
Oredo segetum, vax. decipiens. Pers., ‘Syn.,” p. 225. 
Tilletia spherococca, F. v. Waldh. Cooke, “ Grevillea,” vol. xii. 
P- 99. 
On Agrostis vulgaris. 
BioLocy.—Professor J. W. H. Trail states that the presence of 
the fungus in Agvrostzs vulgaris causes it to assume the form called 
pumila, usually regarded as a distinct variety of this grass, 
Tilletia strizeformis. (Westd.) 
Spore-masses black, in parallel lines on the leaves, leaf-sheaths, 
and stems. Teleutospores globose or irregularly rounded, 
thickly covered with minute spicules, which towards the base 
of the spores tend to form reticulations, olive-brown, 10-1 5 
X Q-I2p. 
” Synonyms, 
Schrot., Joc. cit., p. 278. Winter, Joc. ciz., p. 108. 
Uredo striaformis. Westd., Bull. Acad. de Brux,, 1851, 
p. 406. 
Ustilago salveiit. B. and Br., Ann. Nat. Hist, No. 482. 
Cooke, ‘“Hdbk.,” p. 514; “Micro. Fungi,” 4th edit., p. 230, 
t. vi. figs. 117-119. 
Lixsiccati, 
Cooke, i. 57. Vize, “ Micro. Fungi,” 133; “Micro, Fungi 
Brit.,” 222. 
