Tilletiacei. 2 8 



J 



Synonytns. 



Schrot. in Cohn's " Krypt. Flor. Schl.," vol. iii. p. 275. 



Uredo hydropiperis. Schum., " Enum. Plant. Saell.," vol. ii. 

 p. 234. 



Ustilago candollei, Tul. Cooke, "Micro. Fungi," 4th edit., 

 p. 229. 



Exsiccati. 



Cooke, i. 58; ii. 72. Vize, "Micro. Fungi Brit," 221. 



On Polygonum hydropiper. 

 August to October. 



Biology.— See p. 85. 



TILLETIACEI. Schrot. 



Promycelium producing spores only at its apex. Conidia 

 either produced on the host-plant or from mycelium. 



Tilletia. Tulasne. 



Teleutospores simple, produced separately as outgrowths from 

 the gelatinized mycelium, when mature, pulverulent. Conidia 

 produced from mycelium in nahrlosung. 



Tilletia tritici. (Bjerk.) 



Spore-mass dusty, olive-black,- within the ovary, when rubbed 

 emitting an offensive fishy odour. Teleutospores spherical, 

 olive-brown. Epispore reticulated with ridges, from i to i 'S/x 

 high and about \\jl apart, 16-20/x in diameter. 



Synonyms. 

 Winter in Rabh., " Krypt. Flor.," vol. i. p. no. Schrot., loc. 



cit, p. 277. 



Ly coper don iriticL Bjerk., Act. Snec, 1775, p. 326. 



Uredo caries, D. C. Grev., " Flor. Edin.," p. 443. Berk., " Eng. 

 Flor.," vol. V. p. 373. Johnst., "Flor. Berw.," vol. ii. p. 204. 



Tilletia caries, Tul. Cooke, " Hdbk.," p. 511; "Micro. 

 Fungi," 4th edit., p. 223, t. v. figs. 84-91. 



