Z [ 1 7 8 1 ]
L I C H E N fraxineus.
Leafy Ash Lichen.
CRYPTOGAMIA Algce.
G en . Ch a r . Male, scattered warts.
Female, smooth shields or tubercles, in which th e
seeds are imbedded.
Spec. Ch a r . Leafy, tufted, somewhat cartilaginous,
pitted, smooth, greyish white; its segments linear-
lanceolate, acute, jagged. Shields pale, scattered,
stalked.
Syn. Lichen fraxineus. Linn. Sp. P L 1614. A ch.
Prod. 175. Huds. 541. With. v. 4. .56. Hull. 297.
Relh. 467. Sibth. 330. Abbot. 266.
Lichenoides longifolium rugosum rigidum. Dill.
Muse. 165. t. 2 2 . ƒ. 59.
L. arboreum ramosum scutellatum majus et rigidius,
colore virescentd. R ail Syn. 75.
Parmelia fraxinea. Ach. Meth. 258.
Platisma fraxineum. Hoffm. PI. Lich. v. 1 . 85. t. 18.
f L 2 .
V ERY common on the large branches of old trees, particularly
the Ash and Oak, bearing shields copiously at all seasons1.
The fronds grow in large tufts of a pale greenish hue, white
when dry, from 2 to 6 inches in length, composed of numerous,
flattish, pliable, linear-lanceolate, acute, jagged or
compound segments; even when young, but soon becoming
pitted and wrinkled; destitute at all times of every kind of
pubescence or roughness-. Shields numerous, from both sides
as well as edges of the leaves, on short stalks, various in size,
concave, pale buff, sometimes flesh-coloured, at length rugged
and blackish : their border Small and thin.
It is the largest British Lichen of its tribe, and sufficiently
distinguishable from all others-.