The English flora - SeaweedAfrica

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Parmeha.] L1CHENES. 109
Trunks of trees, rocks and old pales, frequent in mountainous countries.—
This and the preceding are among the largest and handsomest
of the British Lichens.
3. P. conspersa, Ach. (greenish Chestnut-shielded Parmelia);
thallus orbicular membranous lobed and sinuated pale greenishyellow
with scattered dark points granulated in the centre,
beneath brown with black fibres, apothecia near the centre dark
chestnut-brown with an inflexed border. Ach. Syn. p. 209.
Lichen consj>ersus, Ach.
On rocks and stones in mountainous countries.
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4. P. scortea, Ach. (leathery granular Parmelia); thallus orbicular
submembranaceous lobed and sinuated greyish-white
with innumerable dark granulations black and rough beneath,
apothecia bright chestnut with an inflexed crenated border.
Ach. Syn. p. 197. Lichen scorteits, Ach. Prodr.—E. Bot.
t. 2065.
On trees and pales, in Surrey and Sussex, Mr. Barren and in other
but always barren.
places ;
5. P. Borreri, Turn. (Borrerian Parmelia); thallus orbicular
submembranaceous broadly lobed and sinuated tawny-grey
sprinkled with white powdery warts brown and somewhat
fibrous beneath, apothecia bright chestnut with an elevated
inflexed border.— Turn, in Linn. Trans, v. 9. p. 148. t. 13./. 2.
Ach. Syn. p. 197.—Lichen Tumeri, E. Bot. t. 1780.
Trunks of trees, especially fruit-trees, and on stones in Sussex. Norfolk.
On a wall at Luss, Scotland ; and elsewhere.—Distinguished from the
following more abundant species, by its less deeply divided and broader
lobed thallus, of a yellower green colour, in the absence of elevated reticulated
powdery veins and pits, in the presence of white powderj
warts and in the paler and less fibrous underside. Its fructification is
very rare.
(i. I*. saxdiiHs, Ach. (grey Stone Parmelia); thallus orbicular
grey deeply lobed and sinuated imbricated with retuse -em-
inent-, the upper side rough with pits and raised reticulated
powdery lines, black and shaggy beneath, apothecia dark-brown
with an inhVxed crenated border. Ach. Syn. j>. 203 Lichen
taxatOU, Linn.—i:. Bot. t. 603 Dill. Muse. /. 24. /: 88.
Very frequent upon trees, rocka and Btones, especially in mountain'
on-, countries.— In Scotland it i> collected abundantly by the peasantrj
and used, with the follow U . to dye woollen stuffs of 8 dirty pur-
ple.
7. P, omphalddes, Ach. (purple Rock Parmelia); thallus orbicular
dark purplish-brown shining with pale sigxag cracks much
(obed and multifid imbricated the segments truncated black and
shaggy beneath, apothecia dark-brown with an inflexed crenated
border.
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Ach. Syn. p. 208, Lichen ompkalodet I I '
t. 604.— Dill. Mute. t. 24. /. 80.