432 105. Sticta. 4 CENOTHALAMEZ. PL, cell. aphs 
Lichenotdes polyschides villosum et scabram, peltis parvis, Dill. Muse. 
199, 
Lichen sylvaticus, Engl. Bot. 2298. - 
Peltigera sylvatica, Hoffm. Germ. 109. 
Sticta sylvatica, Achar. Meth. 231; Lich. 454. 
On the roots of trees in forests, or among mosses. 
XVI. 106. CETRARIA. Acharius. Cetraria. 
Thallus cartilaginous, membranaceous, ascending or ex- 
panding, lobed, cut; on both sides naked, and smooth; 
apothecia shieldlike, obliquely adnate to the edge of the 
thallus; lower segment free, upper sessile ; proligerous flake 
forming the centre, coloured, plano-concave, inside similar 
or cellularly streaked; thalloid border exceeding. 
1. Cetraria juniperina. Juniper cetraria. 
Thallus pale yellow, underneath very yellow; jags flat, 
ascending, torn crenate, crisp; apothecia elevated, centre 
bay colour; thallvid border crenulate. 
Lichen juniperinus, Lin. S. P. 1614. 
Lobaria juniperina, ZZoffm. Germ. 145. 
Cetraria juniperina, Achar; Meth. 298; Lich. 506. 
On the stems and branches of shrubs, especially of ju- 
niper. 
2. Cetraria pinastri. Pinaster cetraria. 
Thallus pale yellow, underneath very yellow; jags de- 
pressed, round lobed, crenate; edges crisp, powdery, very 
yellow. 
Lichen pinastri, Scopoli Carn. 1387. 
Lobaria pinastri, Hoffm. Germ. 146. 
Cetraria juniperina pinastri, Achar. Meth. 298; Lich. 506. 
On the trunks of pines, near the ground. 
8. Cetraria sceepincola. Hedge cetraria. 
Thallus chestnut-colour, underneath livid; jags flat, 
ascending, lobed, wavey, slightly crenate; apothecia ele- 
eee similarly coloured; ‘¢halloid border wrinkled, crenu- 
ate. 
Lichen Sepincola, Ehrh. Hanov. Mag. 206. 
Lobaria sepincola, Hojffm. Germ. 145. 
Cetraria sepincola, Achar. Meth. 297 3 Lich. 507. 
On the stem and branches of shrubs in hedges. 
4, 
