The English flora - SeaweedAfrica

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Peltidea.] LICHEN ES. 215
1. P. venosa, Ach. (black-veined Peltidea); thallus ascendant
small green and smooth above (grey when dry) irregularly
lobed, beneath white downy with dark prominent reticulated
veins, apothecia marginal plane dark red-brown orbicular.
Ach. Syn. p. 237 .—Lichen renosus, Linn.—E. Bot. t. 887.
Dill. Muse. t. 28. f. 109.
On the earth among rocks, in alpine districts.
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2. P. seuidta, Ach. (target-fruited Peltidea); thallus ashcoloured
white and veiny beneath the lobes oblong rounded
sinuated and cut powdery, fertile ones very short, apothecia
(small) orbicular ascending dark-brown the border nearly entire.
Ach. Syn. p. 237. Lichen scutatus, Dicks. Cr. Fasc. 3.
t. 18. (excl. the sy?wny?n.) E. Bot. t. 1834.
On old trees, among mosses, Inverary. Ardtur, Copt. Carmickael.
Abundant in woods near ltae hills, Sir IV. Jardine and Dr. Greville.
Westmoreland, Sir J. E. Smith.
3. P. horizonfdlis, Ach. {brown horizontal Peltidea); thallus
glaucous brownish-green lobed crenate and shining, beneath
pale with numerous brown branching reticulated veins, fertile
lobes short, apothecia plane horizontal transversely oblong redbrown
with a nearly entire border. Ach. Syn. p. 238.—Lichen
horizontalis, Linn.—E. Bot. t. 888.
Moist shady rocks and about the roots of trees, in mountainous
countries.
4. P. aphthosa, Ach. Thrush Peltidea); thallus Light-green
(
smooth sprinkled with brown warts and having broad rounded
lobes the fertile ones contracted their sides retiYxed, apothecia
large ascending red-Drown with a jagged border. Ach. Syn.
Dill. Muse.
p. 238.— Lichen aphthosus % Linn.—E. Hot. t. 1 1 19.
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t.28.f. 106.
Moist shady alpine rocks, among moss and generally near water.
This is the finest British juries of the Genus: it derives its name from
a circumstance related by Linnaeus, that the Swedish peasants boil it in
milk as a cure lor the aphtha', or thrush, in children.
5. P. canina, Ach. (canine Peltidea); thallus thick glaucousgrey
greenish when moist somewhat furrowed with rounded
lobefl fertile ones with the vide- relieved, beneath white with
brownish branching veins and fibres, apothecia vertical revolute
reddish-brown with a subcrenulated border. Ach. Syn. p. 289.
— Lichen caninui, Linn //. lut.t. l'llMi. Woodo. Med* /!>>/.
Suppl. i. -213.— Dill. Muse. t.
27.
f. L02.
Upon the ground, among moss, on roofs of houses, trees, 8cc rerj
com 1 1 urn.- -Former!} employed, at the sugg< Btion i Dr. Mead, as a cure
for the bite Of a mad-dog, whence the Specific name.
6. P. ip&ria, Ach. Meth. (impetfecth/'Veim I Peltidea); thallus
ash-coloured and eyen shore whitish smooth with indistinct
pale reins beneath, apothecia ascending roundish dark reddish-
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