442 109. Parmelia. 4. CENOTHALAMEZ. Pl. cell. aph. 
22. Parmelia recurva. Bent-back border-moss. 
Thallus stellate, pale, slightly greenish, bearing soredia ; 
underneath black, fibrilled, spongy; jags in the circum- 
ference many-cut, very narrow, convex, nearly cylindrical ; 
apothecia reddish brown; lorder scarcely cut. : 
‘Lichen multifidus, Dickson Crypt. 3, 16. 
Lichen incurvus,»Persoon in Uster Ann. 7, 24. 
Parmelia recurva, Achar, Meth. 201; Lich. 499. 
On stones and hills. 
23. Parmelia sinuosa. Jagged border-moss. 
Thallus stellate, pale grey, smooth; underneath black, 
fibrilled; jags linear, broader outwardly, sinuately pinna- 
tifid, sinuses broad, circular; apothecia flattish, brown ; 
Lorder thin, not cut. 
Lichen sinuosus, Engl. Bot. 2050. 
On walls, rocks, and trunks of trees. 
24. Parmelia diffusa. Spread border-moss. 
Thallus round, contiguous, wrinkled, folded, pale, grey- 
ish, powdery; underneath the same colour, black, fibrilled ; 
jags in the circumference separate, flat, rounded, wavey, 
deeply crenate; apothecia flat, brownish black; border at 
length crenulate, powdery. 
Lichen diffusus, Dicks. Crypt. 3,7. 
Lichen aleurites, 4char. Prod. 117; Engl. Bot. 858. 
Lobaria diffusa, Hoffm. Germ. 156. 
Parmelia aleurites, Achar, Meth. 208; Lich. 484. 
On joists, planks, and palings. 
25. Parmelia conspersa. Sprinkled lorder-moss. 
Thallus round, pale, livid, smooth, dotted with black ; 
underneath brownish, fibrilled; jags sinuated, lobed, 
rounded, crenate, flattish ; apothecia central, chestnut; lor- 
der very slightly cut. 
Lichenoides imbricatum viridans, scutellis badus, Dillen Musc. 180. 
Lichen centrifugus, Lin. S, P. 1609. 
Lichen conspersus, 4char. Prod. 118. 
Lobaria centrifuga, Hoff'm. Germ, 154. 
Parmelia conspersa, Achar. Meth. 205; Lich. 486. 
On stones and rocks. 
26. Parmelia speciosa. Handsome border-moss. 
Thallus stellate, bald, white, rather greyish; underneath 
milky, softish; fibrils dark, marginal; jags tiledlike, flat, 
cut, branched, crenate, divisions ascending, powdery ; apo- 
thecia central, brownish; border bent in, swollen, at length 
wrinkled, crenate. Hea 
