CRYPTOGAMIA. ALG. Lichen. F. Sometoha¥ cris: 43 
taceous, SHRUB-LIKE. 
L. Tubercles reddish brown, very small : plant hollow, uncia’lis. 
perforated ; ultimate branches very short, acute. 
oes Be bet, 174—Dake 0-22, - 
( Quite hollow ; very brittle when dry.. Woopwarp, Grows 
in dense tufts. Stems short, but little branched, longer and more 
branched with age, hardly more than an inch high, yellowish or 
_ greenish white, quite white and brittle when dry. Tubercles 
very small, reddish brown, disposed like stars on the horn- 
shaped extremities of the branches. I have sometimes, though 
rarely, found some whitish scolloped foliage at. the base, Dut. 
Perforations at the origin of the branches. we 
Heaths and stony places in mountainous situations. [On dry 
heaths and rocks thinly covered with earth. In Dartmoor, 
Devonshire, Mr, Newserry. On moors in the north of Eng- 
land. Mr. Woopwarp.] _P. Jan.—Dec. 
Var. 2. Larger and less crowded in its growth. 
Dill. 16, 21-H. ox. xv. 7, row 3.7. p. 633—Mich. 40. 2. 
From 2 to 4 inches high. Stems thick, tender, smooth, 
forked again and again, but not much branched, armed at each 
division of the forks with soft thorns, open at the ends, termi- 
Dating in 3, 4, or 5 rays. Tubercles infrequent, small, reddish. — 
Plant when fresh, pale yellowish green, or whitish; quite white 
when dry. Dri. . : 
High heaths. Leath Hill, Surry, and the heath between 
‘Li _and Petersfield, Hampshire. Dixt. 
L. Tubercles olive brown, terminating: plant solid, co- pascha’lis. 
vered with minute crustaceous leaves. mee 
Dicks. b, s.-E. bot. 282-Dill. 17. 33—Hoffm. lich. 5. 1- 
Mick. 53. 5 to SFI. dan. 151—Happ. ii. Lichen. 2-H. 
ox. XV. 74 12-Scheuch. it. 19. 4+ at p. 136—Pet. gaz. 
65, 7. a ae 
_ Stems very smooth, beautifully incrusted with leaves, espe- 
cially when viewed through a magnifying lens. Eaten by rein 
deer. Liye. Upright or decumbent, many roundish ‘stems 
issuing from a larger stem, divided and subdivided, the extre- 
mities bent, woody, flaccid when wet, pale sea-green to yellow 
or red brown. Young plants covered with a brittle crust. 
Warts very minute, numerous on the extreme branches. ‘Tuber- — 
cles like saucers, single or crowded, of a brown colour, are scat- 
tered over different parts of the plant. From 1 to 4 inches 
-— high. Horrman. Woody at the base, fixed like sea weeds to 
_ the rocks. Stems tough, woody, variously branched, zigzag, 1 
to 2 inches high. Szems incrusted, sometimes naked, especially 
in the lower part of the older plants. Branches generally in- 
