ON GRAMINEEX 257 
120. Puccinia Festuce Plowr. 
Ateidium Periclymeni Schum. Enum. Pl. Sill. ii. 225. Cooke, Mier. 
Fung. p. 196. Plowr. Ured. p. 264. 
.E. crassum var. Periclyment Cooke, Handb. p. 539. 
Puccinia Festucae Plowr. Gard. Chron. 1890, ii. 42, 139, and 1891, 
i. 460; Grevillea, xxi. 109. Sacc. Syll. xi. 194. Sydow, Monogr. 
i. 752. Fischer, Ured. Schweiz, p. 377, f. 272. McAlpine, Rusts 
of Australia, p. 119, f. 13. 
Spermogones. In‘small clusters, honey-coloured. 
Ajcidiospores. Aicidia hypophyllous, on round yellow or 
brownish spots, 1n roundish clusters 2—5 mm. diam., shortly 
cylindrical, whitish-yellow, with recurved irregularly torn 
margin; spores delicately verruculose, orange, 16—27 y. 
Uredospores. Sori epiphyllous, scattered, minute, oblong, 
yellow; spores globose to ellipsoid, echinulate, yellow-brown, 
2230 w, without paraphyses. 
ile 
v 
Fig. 196. P. Festucae. Teleutospores and mesospore. 
Teleutospores. Sori hypophyllous, minute, scattered, oblong 
or sublinear, black-brown; spores clavate-oblong, crowned at the 
summit, with four to six curved and sometimes bifid processes, 
gently constricted, attenuated downwards, smooth, pale-brown, 
40—60 x 15—23 w; pedicels brown, persistent, 15—25 pu long; 
a few mesospores intermixed. 
Aicidia on leaves of Lonicera Periclymenum, June—August, 
not uncommon; uredo- and teleutospores on Festuca duriuscula, 
F. ovina, August—October, not common or at least rarely 
observed. (Fig. 196.) 
It was Plowright who first, in 1890 (after twenty-eight unsuccessful 
trials), proved that the well-known xcidium on Londcera was connected 
G. U. 17 
