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Leeythea Saliceti, Lev,
APPENDIX. 207
Common Willow Rust; spots
yellowish sori
; subrotund, solitary, or in circles, surrounded by
the ruptured epidermis barren
;
spores subglobose and pedicellate
or pyriform ; fertile spores subglobose, orange. — On the under
surface of Willow-leaves, Autumn, Common.
Leeythea Baryi, Berk. De Bary's Exist; "^sori
few;
cystidia with an abrupt globose head; spores subglobose. — On
leaves of Brachypodium pennaium. Very rare.
Leeythea Valeriange, Berk. Valerian KrsT ; spots
yellowish ;
sori subrotund, small, confluent, sometimes circinating;
epidermis at length bursting; spores — reddish -brown, subglobose
or clavate, shortly pedicellate. On Valeridiia officinalis.
August.
* ^'
Spores invested.
Leeythea gyrosa, Berk. Hinged Rust ; spots obliterated ;
sori minute, confluent, and forming a small distinct ring; epidermis
bursting ; spores globose and elongato-pyriform, yellow or
;^ale.— On the upper surface of Raspberry and Bramble leaves,
forming a more or less perfect ring with the centre unoccupied.
Septeinber. (Plate VIII. figs. 162-164.)
* * * Spores concatenate.
Leeythea Caprsearum, Berk. Sallow Rust ; spots
obliterated, yellow on the opposite side ;
sori varied in form, here
and there confluent, surrounded by the ruptured epidermis;
barren spores subglobose and pyriform, pedicellate ;
fertile spores
subglobose, dirty yellow.—On the under surface of the leaves
of Sallows. June to August. Very common. (Plate VIII. figs.
160, 161.)
Leeythea Lini, Berk, Flax Rust"; spots yellowish ;
sori
subrotund, scattered, surrounded by the ruptured epidermis ;
spores globose or pyriform, sometimes pedicellate.
— On Linum
catharticum. July. Not uncommon. (Plate VIII. figs. 165—
167.)
TmcHOBASis, Lev.
Spores free ;
attached at first to a short peduncle, which at
length falls away. — Berk. Outl., pp. 332.
* Spores yellow.
Trichobasis rubigo-vera. Lev. Round Corn Rust;
spots yellow, heaps oval, scattered, generally on the upper
surface ; epidermis at length bursting longitudinally — ; spores subglobose,
reddish brown, easily dispersed. On Grasses and Corn.
Throughout the Summer. Very common. (Plate VII. figs. 140—
142.)