257 
XXIV. Thongs. Crypt. Algje. 
* * Crustaceous, with black lines. 
§5 2. Wrinkled Liver-wort. — L. rugosus. 
Crust whitish, simple, black lines and dots 
crouded together. — Dillenius. XVIII. 2. 
Bark of Trees. January, P. Common. 
Ohs: 
Scarcely different from L. scriptus. 
853. Lettered Liver^zmrt. — L. scriptus. 
Crust whitish, with black lines branched like 
Asiatic characters, — Dillenius. XVIII. i. 
Bark of Trees, January, P. Common. 
854. Ilea Liver-wort. — L. pulicaris. 
Crust whitish, lines black, very short and 
simple. — Hoffman’s Enum. Lich. III. 2. 
Bark of Trees, December, P. Rare. 
Ampihill Park. 
* Crustaceous, with tubercles. 
855. Beech Liver-zvort. — L. fagineus. 
Crust white, tubercles white, mealy. — Dil- 
lenius. XVIII. II. 
Bark of Trees, December, P. Common. 
856. Whitish-black Liver-zvort. — L. atro- 
albus. 
Crust black, tubercles black and white, mix- 
ed together. — Jacquiii. Collect. II. 14. i, 
L 1 Walls, 
