LICHEN salicinusi
Saffron-coloured Willow Lichen.
CRYPTOGAMIA Algce.
Gen. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Crust granulated, whitish lemon-coloured.
Shields sessile, rather con v ex , orange-coloured, with
a y e llow waved border.
Syn. L ichen salicinus. Schrad. Sbicil. 82. Achar
Prod. 4 3 .
Lecidea aurantiaca. Achar. Meth. 69.
Patellaria salicina. Baffin, PI. Lich. t. 61. f . 3__9.
®]dest specimens of this Lichen were gathered on trees
about Edinburgh in 1782. Mr. Sowerby finds it abundantly on
willows at Kcnmngton ; Mr.Borrer on ash trees in Sussex/and
Mr. 1 urner, to whom we are obliged for specimens, on the
same kind of tree at Haddiscoe, Suffolk. Indeed we believe it
to be not very rare.
The crust is thin, granulated, and cracked, easily discernible
by its colour, which looks as if it had, though originally white
or greyish, been stained with lemon peel, or a weak tincture
ot saffron. 7 he whole plant when moist smells strongly
or saffron, even after it has long been kept in a herbarium ;
by which it is easily recognized. The shields are pretty numerous,
mostly small, sessile, with a deep orange-coloured flattish
disk, at length a little convex, and a thickish, tolerably even,
not waved, border of a lemon hue.
■All the above synonyms we have determined by original
specimens from the authors themselves. This Lichen has been
taken for the aurantiacus of Lightfoot, whose description,
however, much better agrees with ferruginous of Hudson. It
does not seem exactly the aurantiacus of Ehrhart, Crypt. 28.
It may b efavo-rubescens of Hudson, but that cannot easily be
detennined. In this confusion we have preferred the name of
one faithful writer at least, though we should rather have called
it crocmus.