Pl, cell. aph. 4. CENOTHALAME.. 109. Parmelia. 443 
Lichen speciosus, Wulf in Jacq. Coll. 3,139. 
Lobaria speciosa, Hoffm. Germ. 153. 
Parmelia speciosa, Achar. Meth. 198; Lich. 480. 
On the trunks of trees and rocks. 
27. Parmelia levigata. Smooth border-moss. 
Thallus stellate, smooth, greyish white; underneath 
black, fibrilled; jags many-cut, linear, broader outwardly 
cut, divaricated, pointed, frequently having soredia in the 
circumference; apothecia concave, chestnut; lorder not cut. 
Lichen lwvigatus, Engl. Bot. 1852. 
On rocks. 
28. Parmeiia farrea. Floury border-moss. 
Thallus round, greenish, grey, powdery; underneath 
whitish, fibrils brown-black ; jags short, deeply crenate, 
tiledlike, edges raised, granulated, powdery; apothecia 
black, grey, and hoary; lorder bent in, swollen, slightly 
hollowed. 
Parmelia farrea, Achar. Lich, Univ. 475. 
On the ground, on trees, and rocks. 
29. Parmelia pulverulenta. Powdery border-moss. 
Thallus stellate, greyish white, hoary; underneath black, 
woolly, hispid; jags linear, many-cut, separate in the cir- 
cumference, flat, pressed close, wavey; tips blunt; apothecta 
erey; border not in the least cut, bent. 
Lichenoides arboreum et saxatile, crusta foliosa tenni, fusco-virenti 
in segmenta latiora plerumque divisa, Dillen in Rai Syn. TA, 74. 
Lichenoides arboreum, crusta foliosa informi, scutellis subnigris, limbo 
cinereo crispo cinetis, Dillen in Raii Syn. 15, Td: 
Lichen stellaris 8 et y, Huds. Fl. Ang!. 534, 
Lichen allochrous, Lhrh. Crypt. 19, 187. 
Lichen pulverulentus, Schreber Germ. 1123; Engl. Bot. 2063. 
Lobaria pulverulenta, Hoffm. Germ. 152. 
Parmelia palverulenta, Achar. Meth. 210; Lich. 475. 
On the bark of trees. 
30. Parmelia cesia. Grey border-moss. 
Thallus starlike, greyish white or grey, bearing soredia ; 
underneath grey; fibrils black; jags linear, many-cut, 
deep, slightly convex, the last jags flat; apothecia slightly 
concave, black ; Lorder rather bent inwards. 
Lichen pulchellus, Wulf in Jacq. Cull. 2. 
Lichen cesius, Hoffm. Lich. 12,15; Engl. Bot. 1052. 
Lichen Psora, Dicks. Crypt. 3, 17. 
Lobaria cxesia, Hoffm. Germ. 156. 
Parmelia cwesia, Achar. Meth. 197; Lich. 479. 
On rocks, wood, mosses, and the trunks of trees. 
