Pl, cell . ccph. 4. CENOTHALAMEiE. 109. Parmelia. 443 
Lichen speeiosus, WulfinJacq. Coll. 3, 119. 
Lobaria speciosa, Hoffm. Germ. 153. 
Parmelia speciosa, Achar. Meth. 198; Lick. 480. 
On the trunks of trees and rocks. 
27. Parmelia Icevigata. 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; border not cut. 
Lichen laevigatus, Engl. But. 1852. 
On rocks. 
28. Parmelia 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: border bent in, swollen, slightly 
hollowed. 
Parmelia farrea, Achar. Licit. 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 ; apothecia 
grey; border not in the least cut, bent. 
Lichenoides arboreum et saxatile, crusta foliosa tenni, fusco-virenti 
in segmenta latiora plerumqne divisa, Dillon in 11 ai Syn. 74, 74. 
Lichenoides arboreum, crnsta foliosa informi, scu tell is subnigris, limbo 
cinereo crispo cinetis, Dillen in JRaii Syn. 75, 75. 
Lichen steilaris /3 et y, Huds. Fl.Angl. 534. 
Lichen allochrons, Ehrh. Crypt. 39, 187. 
Lichen pulverulentus, Schreber Germ. 1 123; Engl. Bot. 2063. 
Lobaria pulverulenta, Hoffm. Germ. 152. 
Parmelia pulverulenta, Achar. Meth. 210; Licit. 475. 
On the bark of trees. 
30. Parmelia ccesia. Grey border-moss. 
Thallus starlike, greyish white or grey, bearing soredia; 
underneath grey; fibrils black; jngs linear, many-cut, 
deep, slightly convex, the last jags flat; apothecia slightly 
concave, black ; border rather bent inwards. 
Lichen pulchellus, WulfinJacq. Coll. 2. 
Lichen caedus, Hoffm. Licit. 12, 1 ; Engl. Bot. 1052. 
Lichen Psora, Dicks. Crypt. 3, 17. 
Lobaria cassia, Hoffm. Germ. 1 56. 
Parmelia cassia, Achar. Meth. 197 ; Lich. 479. 
On rocks, wood, mosses, and the trunks of trees. 
