OEDOCEPHALUM. 289 



Oidium monilioides. Link, sp. pi. p. 122; Sacc, Syll., iv. 

 n. 219. 



On the livinj:; leaves and cnlms of various grasses. The 

 conidial stage of Erysi^he graminis. 



Sutsect. 2. Macronemeae. Saco. 



Tribe 3. Gephalosporieae. Sacc. 



OEDOCEPHALUM. Preuss. (figs. 4, 5, p. 274.) 



Sterile hyphae scanty ; creeping ; fertile hypliae erect, 

 simple, gregarious, apex swollen and rough, with minute 

 point-like projections, to which the conidia are attached; 

 very slightly or not at all aieolate; conidia sessile, con- 

 tinuous, globose or oblong, hyaline or bright coloured. 



Oedocephalum, Preuss, Fimg. Hoyersw., n. 100; Sacc, 

 Syll., iv. p. 47. 



Distinguished from Bhopalomyces in the swollen apex of 

 the fertile hyphae not being broken up into polygonal 

 portions. 



Oedocephalum roseum. Cooke. 



Forming effused rose-coloured tufts ; fertile hyphae short, 

 simple, septate, heads subglobose; conidia broadly elliptical 

 with a basal apiculus, colourless, smooth, 11—14 x 8—l6/x.. 



Oedocephalum roseum, Cooke, Grev., i. p. 184, t. 22, f. 8 ; 

 Sacc, Syll., 226. 



On paper and old cloth, &c. 



Individual tufts almost invisible to the naked eye, but 

 gregarious, and forming extended patches. 



Oedocephalum laeticolor. B. & Br. (fig. 4, p. 274.) 



Very minute, brick-red with a rosy tinge ; fertile hyph.ie 

 equal, pallid, apex inflated, not 1 mm. high; heads sub- 

 globose, conidia subglobose or broadly elliptical, apiculate 

 at the base, minutely warted, 15-20 X 9-12 fi.. 



Oedocephalum laeticolor, B. & Br., Ann. Nat. Hist., no. 

 1056, t. 14, f. 12 ; Sacc, Syll., 228. 



On dung of sheep. 



VOL. lu. r 



