MILDEWS, RUSTS AND SMUTS 
153 
mis, convex, dusky brown ; spores club-shaped, tip gener¬ 
ally truncate or slightly narrowed, much thickened, slightly 
constricted at the septum, base narrowed, smooth, pale 
brown, 40—56 X to— 22 p, pedicel colourless, about equal 
in length to the spore. 
On leaves and culms of Koeleria cristaia. 
MOLINIA 
Puccinia moliniae. Tub 
Aecidia. On the under surface of the leaves on brownish 
or purplish spots, cup-shaped, edge recurved and torn, 
white ; spores angularly globose, very minutely warted, 
yellowish, 15—18 p diam. 
Uredospores. Sori on both surfaces of the leaves, most 
frequently on the under surface, on brownish or purplish 
spots, scattered or in crowded lines, oblong or narrow, brown, 
spores subglobose, aculeate, yellowish-brown, 20'—28 x 
20—24 p. 
Teleidospores. vSori on both surfaces of the leaves, most 
abundant on the under surface, scattered or in clusters, 
oblong or narrow and elongated, convex, blackish ; spores 
elliptical, ends rounded, tip thickened, not at all, or very 
slightly constricted at the septum, smooth, brown, 36-— 
46 X 20^—30 p, pedicel colourless or tinged yellow, rather 
thick, long ; a few mesospores sometimes intermixed. 
S^m. Puccinia nemoralis, Juel. 
Aecidium melampyri, Kze. 
Aecidia on Melampyruni'arvense, M. cristatum, and other 
species of Melampyrum. 
Uredospores and teleutospores on Molinia caerulea. 
The aecidial form of this species has, incorrectly, been 
described as occurring on Orchis laiifolia, and on other 
orchids. 
PHALARIS 
Puccinia sessilis, Schneid. 
Pycnidia. On the upper surface of the leaf. 
Aecidia. On the under surface of the leaf, on circular 
or irregularly-shaped yellowish spots, cup-shaped, white, 
edge recurved and torn ; spores angularly globose, minutely 
warted, yellowish, ig-—27 p diam. 
Uredospores. Sori on both surfaces of the leaf, scattered, 
minute, dot-like or slightly elongated, yellow; spores 
globose, subglobose or elliptical, echinulate, yellowish- 
brown, 20—28 X 18—24 p. 
