[ 1698 ]
LICHEN laclineus.
Woolly-rooted Angular Lichen.
Id
CRYPTOGAMIA Algce.
G en . Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Ch a r . Fronds simple, crowded and somewhat
imbricated, thickish, rounded, waved and lobed ;
olive green and- smooth above ; black and sppngy
beneath. Tubercles in immersed black dots.
Syn. Lichen lachneus. Ach. Prod. 140.
Endocarpon lachneum. Ach. Msth. 127.
C o m m o n on the Sussex downs, as well as on the rocks
at Chedder and Bristol hot-wells, according to Mr. W.
Borrer, from whom we received specimens which agree with
what Dr. Acharius has sent. I gathered this species plentifully
at Bristol in 1799, but was not satisfied of its being distinct
from L. trapeziformis, v. 9 . t. 595. It differs however
from that species in having more oblong and dilated fronds,
crowding, and lying over, each other, more irregularly sinu-
ated and waved, and of a dull olive hue, which turns yellowish
and pale with age. Their base is thick and spongy,
very firmly rooted to the clods of earth from whence the
plant derives nourishment. A few scattered dots are each
the station of a little immersed tubercle or shield.
Whether Dillenius’s tab. 30. f . 135. be intended for this
plant, is a botanical enigma far beyond our power to solve,
It has always been taken for Mr. Dickson’s squamatus, a
small variety of his and our luridus, v. 19- t. 1329. Mr.
Turner found no specimen of th is /-. 135. in the Dillenian
herbarium.