140 
MILDEWS, RUSTS AND SMUTS 
by the epidermis, at length showing through the cracked 
epidermis, dusky brown ; spores elliptical, ends rounded, 
scarcely constricted at the septum, dusk}/ brown, covered 
with rather long, sharp, colourless spines, 54—66 X 34— 
40 p, pedicel almost absent. 
On leaves of cultivated tulips. Sent for identification 
from Card. Chron. 
JUNCACEAE 
LUZULA 
Puccinia obscura, Schroet.; Plowr., Ured., p. 174. 
Aecidia. On both sides of the leaves, on circular or 
irregularly shaped, discolourcvd spots, in loose clusters, or 
scattered without order, cylindric cup-shaped, edge 
whitish, torn ; spores angularly globose, very minutely 
warted, yellowish, 16—22 p diam. 
Uredospores. Sori generally on the upper surface of the 
leaves, more or less crowded on irregularly shaped, brownish 
spots, elliptical or narrow, for a long time covered by the 
epidermis, then powdery, rusty yellow ; spores globose, 
elliptical or ovate, echinulate, pale brown, i8-—26 x 15— 
22 p. 
Teleutospores. Sori on the under surface of the leaf, on 
irregularly shaped, crowded, brown spots, generally scat¬ 
tered, oblong or narrow, surrounded by the split epidermis, 
soon naked, rather compact, dusky brown; spores oblong, 
tip rounded, rarely truncate or narrowed, thickened, slightly 
constricted at the septum, base usually narrowed, smooth, 
brown, 30—^48 X 16—25 p, pedicel almost colourless, 
persistent, up to 30 p long ; mesospores are often intermixed. 
The aecidia occui on Beilis perennis. 
The uredospores and teleutospores on Limda campesfris, 
L. pilosa, and L. silvoiica. Britain, Europe generally, and 
N. America. 
Puccinia oblongata, Winter; Plowr., Ured., p. igo. 
Uredospores. Sori on both surfaces of the leaves, on 
clustered, irregularly shaped, reddish-brown spots, scattered, 
circular or oblong, for a long time covered by the epidermis, 
rust-coloured ; spores oblong-ovate, pear-shaped or club- 
shaped, rarely elliptical, smooth, or the tip sometimes 
minutely echinulate, yellow, 30—^44 X 15—20 p. 
Teleutospores. Sori on both surfaces of the leaf, on 
irregularly shaped, brownish spots, which are more or less 
in clusters, scattered or in loose clusters, circular, oblong or 
long and narrow, suirounded by the split epidermis, rather 
