MILDEWS, RUSTS AND SMUTS 
151 
tip generally rounded and thickened, slightly constricted 
at the septum, base rounded, rarely, narrowed, smooth 
chestnut-brown, 24—48 x 16—22 p, pedicel tinged brown, 
persistent. 
On living and fading leaves of Anthoxanthum odoratum. 
Britain and Belgium, Germany. 
Plowright says the uredospores are usually mixed with 
a large number of capitate, colourless paraphyses. 
ARRHENATHERUM 
Puccinia arrhenatheri, Eiiksson. 
Pycnidia. Very numerous, covering the whole or a 
great portion of the leaf. 
Aecidia. On the under surface of the leaves, sometimes 
also on the flowers, and shoots, which are distorted, gener¬ 
ally covering the entire surface of the leaf, cylindric cup¬ 
shaped, edge recurved, whitish, torn ; spores subglobose 
or elliptical, minutely warted, yellowish, 19—32 X 16—24 p. 
Uredospores. Sori most abundant on the upper surface 
of the leaves, rarely on the under surface, on minute yellow 
spots, elliptic or oblong, minute, pale rusty ; spores sub- 
globose or ovate, echinulate, yellow, 19—30 x 19—26 p, 
with numerous germ-pores ; paraphrases numerous, 80 
X 10—14 p. 
Teleutospores. Sori on the under surface of the leaves, 
scattered, minute, circular or shortly elongated and narrow, 
covered by the epidermis, blackish ; spores elliptic-oblong 
or oblong club-shaped, tip rounded, truncate or slightly 
narrowed, thickened and darker in colour, not at all or very 
slightly constricted at the septum, base generally narrowed, 
smooth, pale brown, 30—^45 X 18—24 p, pedicel short, 
tinged brown ; paraphyses brownish. 
Syn. Puccinia perplexans, Plowr., var. arrhenatheri, 
Klebahn. 
P. magelhaenica, Peyr. 
The aecidia occur on the leaves, flowers and shoots 
of the barberry— Berheris vulgaris. 
Uredospores and teleutospores on living leaves of Ar- 
rhenatharum elatior. Britain, Germany, Austria, Hungary, 
Switzerland, Sweden, Finland, and Turkestan. 
BRACHYPODIUM 
Puccinia baryi, Winter ; Plowr., Ured., p. 191. 
Uredospores. Sori minute, scattered or clustered, often 
arremged in hues, long, rust-coloured, on narrow, brovnish 
