CRYPTOGAMIA. AL GM. Lichen. 
61 
L. apthc/sus. Tubercles purple, or red brown, terminating; foliage 
green, changing to brown, sprinkled with warts, lobes blunt, not 
veined underneath. 
Hoffm. Lich. 6. 1 —(E.Bot. 1119. E.)— Dill. 28. 106— FI. Dan. 767. 1— 
Jacq. Coll. iv. 17. 
Broader, shorter, thinner, and less brittle than L . caninus. Segments 
large, flattish, bluntly notched. Surface smooth, fine green when young, 
grey brown when old. Warts numerous, scattered, blackish. Tubercles 
terminating, fine purple, or red brown, egg-shaped, crooked, warty, on 
short pedicles. Roots very long. Hoffman. Black brown underneath, 
woolly, not veined, whitening when exposed to the air; without radical 
fibres. Dill. (Seldom found in this country. 
Apthous Lichen. Peltidea apthosa. Achar. Hook. E.) Shady, stony, 
mossy places, and on rocks. Dartmoor, Devonshire; Ingleborough, 
Yorkshire; elsewhere in Yorkshire and Westmoreland. Finds. At the 
foot of the Pentland Hills, Scotland. Mr. Yalden in FI. Scot. 847. (On 
rocks at Shewing Shields, Northumberland; in Hag Crag Wood, 
Teesdale Forest; also in Hoi wick, Yorkshire. Mr. Winch. E.) 
P. Jan.—Dec.* 
L, (rufes'cens. E.) Tubercles reddish brown, terminating: foliage dull 
green, deeply lobed; lobes blunt, the edges bent inwards, under¬ 
neath woolly, and with black fibres. 
Jacq. Coll. iv. 15—( E. Bot. 2300. E.) — Dill. 27. 103— Mich. 44. ord. 12. 2. 
Leaves thicker, stiffer, smaller, narrower, and deeper cut than in L. 
caninus ■; the edges curled, the colour darker, not veined underneath, or 
very superficially so. Dill. 
(Dark-coloured Ground Lichen. L. rufus. With. Ed. 3. E.) In the 
same place with L. caninus, and more common. Dill. 204. L. caninus 
var. (3 Huds. &c. 
L. Fuligino'sus. Saucers rust coloured, flat, borders pale: foliage 
grey green, creeping, indented, lobed, rough underneath, pitted, 
and covered with a spongy down. 
(E.Bot. 1103. E.)— Dill. 26. 100. 
Ash-coloured sea-green, tinged of a lurid colour, yellowish underneath, 
with white hollows. Dicks. 13. Leaves soft, tender, wrinkled and pitted 
above, and strewed with a sooty-like powder; woolly and spongy under¬ 
neath, with here and there a white hollow, but no fibrous roots. Saucers 
few, small, flat, rust-coloured, with a thin pale border. Dill. 
(Sooty-leafed Lichen. Sticta fuliginosa. Achar. Hook. E.) Growing 
always upon moss, and not directly attached to the substance on which 
it appears to grow. At the foot of Mount Cader Idris, near Dolgelle, in 
August. Dill. In woods on the branches of trees. Dicks. On trees 
near Ambleside. Dr. J. E. Smith. On Crib y Ddescil. Mr. Griffith. 
(Rookwood Grove, Boconnoc, Cornwall. Mr. E. Foster. In Castle Head 
wood, near Keswick. Mr. Winch. E.) 
L. parFlis. Somewhat coriaceous, creeping, lobed, jagged, erenate 
and wavy, greenish or purplish brown, besprinkled with superfi¬ 
cial or marginal, dark, powdery warts: shields red brown, broader 
than long, on the under side of the shorter lobes at their ends. 
* The country people make an infusion of it in milk, and give it to children that 
have the thrush, in large doses it operates by purging and vomiting, and destroys 
worms. 
