Lichenes of N. ew England, 
L. varians, Muhl. 1. c., Eaton, E The. de- — 
scription given by Eaton agrees so well with one-of 
our common forms of Lecidea, that I have little ~ 
doubt our plant is the. L. varians of the above aus 
thors. + My opinion has been strengthened by an 
"examination of labelled specimens (not, however, 
original) in the herbarium of Mr. Oakes. . The. spe- 
cies is somewhat remarkable, and occurs commonly 
on bark. canal &c. 
besten ventosa, Ach. — Rocks in Essex Coun- 
ty, Oakes!. This fine species is abundant on Alpine 
rocks at the White Mountains, a station mentioned 
in my former enumeration, but it is wholly new to 
Massachusetts. - On the Chin of Mansfield, Xt: k 
L. tartarea, Ach. Lichenogr., Hook. l. c., H is 
c., Mass, Catal., Patellaria tartarea, De Cand. |. e., 
Kermani tartarea, Hoffm., Lichen tartareus, L. — 
Rocks. Danvers, Oakes!, Brookline, Medford, '&e., . 
not uncommon. "The cudbear of commerce. 
Parmer perlata, Ach. Meth., Scher.! |. c., 
Moug. & Nestl. ! l. c., Spreng. 1. ¢., Hook. 1. c., Hals. 
l; c., Lobaria perlata, De Cand. 1. c., Lichen perlatus, k 
L., Ach. Prodr. — Rocks, trees, and rails, Cambridge; 
Waltham, Lexington, Framingham, &c., common. 
Also, Chelmsford, Mr. Russell. Not as yet observed 
in fruit. Not in the Mass. Catalogue. 
- Po pulverulenta, Ach. Syn. (cit. Hook.), Scheer. ! 
L-e., Spreng. l, c., Hook. l. c., Muhl. 1. ¢., Imbricaria 
pulverulenta, De Cand. 1. c., Moug. & Nestl 14.0; 
Lobaria pulverulenta, Hoffm; (cit. Cand.), ides 
