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LICHEN ochroleucus.
Shrubby Sulphureous, Lichen.
CRYPTOGAMIA Alga.
Gen. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Cartilaginous, bushy, repeatedly
branched, somewhat tubular, pitted, sulphur-
coloured ; ultimate branches divaricated, zigzag,
entangled, with forked points. Shields nearly
sessile, brown, with a pale wavy border.
Syn. Lichen ochroleucus. Ehrh. Beitr. fasc. 3. 82.
Ach. Prodr. % 15. Dicks. Crypt, fasc. 3 .1 9 . With,
v. 4. 46. Hull. 306.
Usnea ochroleuca. Hoffm. PI. Lich. v. 2 . 7. t. 26.
ƒ. 2.
P a rm e lia ochroleuca. Ach. JYLeth. 271.
(xATHERED by Mr. Dickson on the highland mountains
of Scotland, where, as well as in similar situations on the continent,
it is said to be abundant. We have sought in vain for
the shields on the Alps of Savoy and Switzerland, nor have
we ever seen a specimen or figure of them.
Tufts of this Lichen at first sight resemble rangiferims,
t. 173, except in being sulphur-coloured, not white, but it is
most akin to sarmentosus, t. 2040. The stems are rigid and
hard when dry, softer when moist, always sulphur-coloured,
but their little forked spinous tips are black. The surface is
somewhat pitted, occasionally warty or mealy; the inside hollow,
but the coat is very thick. This species always grows
on the ground, on exposed mountainous heaths.