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. 



. Trichobasis oblongata, B. Luzula Rust ; spots oblong, 

 often confluent, yeUow-brown ; sori elliptic, on botli surfaces ; 

 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. 



