LICHEN jubatus.
Wiry Lichen, or Rock Hair.
CRYPTOGAMIA Algce.
G en. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Filamentous, cartilaginous, smooth, round,
hollow, very much branched, of a smoky brown :
its branches tapering, often compressed at their divarications.
Warts tumid, powdery, white. Shields
sessile, blackish, with an entire margin.
Syn. Lichen jubatus. Linn. Sp. PL 1622. Ach.
Prod. 219. Huds. 561. With. v. 4. 46. Hull.
306. Relh. 473. Abbot. 270. L ig htf 891.
Schrad. Journ. v. 1 . 83. t. 3 . f . 4.
Usnea jubata nigricans. Dill. Muse. 64. t. 12. f . 7.
Muscus corallinus saxatilis fceniculaceus. Rctii Syn. 65.
Parmelia jubata. Ach. Meth. 272.
ß . Lichen chalybeiformis. Linn. Sp. PL 1623. Ach.
Prod. 220. With. v. 4. 47. Hull. 306. Light/.
892.
Usnea rigida, horsum vorsum extensa. Dill. Muse. 66.
t. 13./. 10.
Muscus caule rigido instar fili chalybei. Rail Syn. 65.
Parmelia jubata 5. Ach. Meth. 273.
T h i s grows either in long pendulous bunches from the
branches of old trees in mountainous woods, resembling the
mane of a horse, or in straggling tufts on rocks or pales. The
colour is a smoky greyish brown, rather shining. Stems and
branches slender, round, hollow without any central fibre,
much and repeatedly subdivided and divaricated, compressed
at the older and larger divarications, taper-pointed. In the
long pendulous kind, or original jubatus, we have chiefly
observed the white powdery warts in plenty, but very rarely
any shields. Mr. Turner and Mr. W. J. Hooker brought the
variety /3 in fruit, which is also very uncommon, from the
highland mountains. The shields are sessile, almost black,
with a border of the same colour when young. The disk
grows cracked and rugged with age.