446 Lichenes of New England. 
that we can say, New England still looks for her 
FLORA. 
_C. lacunosa, ` Ach. Meth. p. 295 (cum "ye Li- 
chenogr. p. 508., Muhl. 1. c., Hals. 1. c., Mass. Catal. 
Lichen cavernosus, Menzies, (cit. Ach.)— Old rails 
and trees; throughout New England. iri 
setts, Greene !. 
C. ciliàris, Ach. Lichenogr. p. 508., Muhl. in Ach. 
l. c., Ejusd. Catal. 1. c.; Hals. 1. c., "n Catal., Par- 
melia Muhlenbergii, ibirita: l; rici rails and 
trees, common. A small form, apparently the young 
plant, which I have gathered in the subalpine region 
of the White Mountains, and have also received from 
Dr. Porter, resembles very much C. sepincola, an 
European species, but so far as I have observed, is 
always distinguishable from that’ species, by the 
presence, more or less, of cilim. It may be added, 
that this form here referred to, occurred, in both in- 
stances, as is common with a similar form of C. sep- 
incola in Europe, (of which specimen v. s. ex Hook- 
er, in herb. Greene,) in company with C. just 
B. pinastri. - Besides the character of ciliation, this 
species differs, says Acharius, from the foreign one, 
in being, as is evident, in the comparison of w 
mens; “multo major atque solidior." - 
anana inp ilo Ach, Lichenogr- Je: 60, 
Shaw. ! l. ¢., Hook. 1. c., Muhl. 1..¢., Hals. |. ¢ 
Mass. Catal., Parmelia scopulorum; a. ee 
Wallr. 1. ¢., P. polymorpha, Ach. Meth. . 265. 
Spreng. l. c., Lichen polymorphus, Ach. Prodr. p 
Walls and stones, not uncomuión. Essex co. Quit 
