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208 MICEOSCOPIC FUNGI.
Trichobasis linearis, Lev. Long Corn Rust; spots
yellow-brown. Sori elliptic, then elongated and linear ; epidermis
bursting; spores oblong or globose, yellow.—On leaves and
sheaths of Corn and Grasses. Summer. Common. (Plate VII.
figs. 143, 144.)
Trichobasis Glumarum, Lev. Glume Rust; sori minute,
round, scarcely convex, subgregarious, often confluent. Spores
globose or subovoid, orange, not pedicellate ; epispore smooth.
— On the glumes of Cereals. August.
Trichobasis Symphyti, Lev. Comfrey Rust ;
Sori
minute, very numerous, scattered, roundish, then confluent;
epidermis ruptured, scarcely conspicuous around the margin ;
spores subglobose, pallid orange. — On Comfrey.
Trichobasis Pyrolae, B. Wintergreen Rust; spots
yellowish-brown on the opposite side; sori globose, minute,
scattered or aggregate, on the under surface ; epidermis generally
closed ; spores subglobose, yellow.—On Pyrola rotundifolia, &c.
Trichobasis Petroselini, B. Parsley Rust; spots
yellowish ;
sori subrotund and oval, confluent, on both surfaces ;
epidermis at length ruptured; spores globose or subglobose,
occasionally obsoletely pedicellate, pale yellow.—On various
Umbellifer(je.
Trichobasis Senecionis, B. Groundsel Rust; spots
obliterated; sori solitary or regularly crowded, subrotund and
oval, on the under surface, surrounded by the ruptured epidermis;
spores subglobose, orange. — On various species of Groundsel.
July. Very common. (Plate VII. figs. 145, 146.)
Trichobasis Caricina, B. Sedge Rust ; spots red ;
sori
oval, minute, scattered, surrounded by the ruptured epidermis ;
spores subglobose, reddish, then brown.— On Carex pendula, C.
pseudo-cyperus, &c. June to August. Common. (Plate VIII.
figs. 170, 171.)
* •'
Spores brown.
oblongata, B. Luzula Rust ; spots oblong,
often confluent, yeUow-brown sori
; elliptic, on botli surfaces ;
. Trichobasis
— epidermis closed ; spores brown, obtuse at either extremity. On
Luzula. May to July. (Plate VII. figs. 158, 159.)
Trichobasis Scillarum, B. Hyacinth Rust ; sp9ts
oblong or subrotund, crowded into patches ; epidermis bursting
longitudinallv ; spores rubiginous, obovate, shortly pedunculate.
—On the Wild Hyacinth, &c.
Trichobasis Cichoracearum, Lev. Hawkweed Rust ;
on both sides of the leaf, dark, fuscous, minute, — round, scattered :
spores globose, rarely minutely pedicellate. On Thistles and
Hawkweed. July to September. Common.