Lichenes of New England. 293 
C. tremelloides, Ach. Syn., Hook. 1. c., Muhl. 1. c., 
Torr. l. c., Hals. 1. c. — Rocks, Grand Monadnock 
mountain, N. H.; Ragland, in Brookline, near Ham- 
mond’s (or Richards's) Pond; Medford hills. Also 
Manchester, and elsewhere, a not uncommon species, 
and frequently occurring in fruit. Thallus, when 
moist, of a dark green, and translucent; when dry, 
of a light lead-color, and opaque. Besides C. pul- 
chellum, I have six other New England Collemata, 
undetermined ; two of which were received from 
Dr. Porter. It is remarked by Hooker, that, in dry- 
ing, these plants are necessarily much altered in 
form, and from this, and their variable character, 
there is considerable: difficulty in the determination 
of the. xig ( Br. FI. in loc.) 
Nipid dorili Ach. Lichenogr., Hook. L Ci, 
Peltigera parilis, Spreng. l. c., Peltidea parilis, Ach. 
Meth., Lichen parilis, Ach. rn E. Bot. t. 2360. 
— Rocks; in the Notch of the White Mountains, in- 
fertile. This is new to our Flora. ^ 
N.. bella: *thallo membranaceo utrinque glabro, 
supra badio, subtus pallidiori, lobis convexis, abbrevi- 
atis, rotundatis ; scutellis fuscis margine thallode inte- 
gro.” Spreng. Peltigera bella, Spreng. l. c. — Trees, 
sub-alpine region of the Chin of Mansfield, Vt. Thal- 
lus membranaceous, glabrous; pelte small, exactly 
orbicular. I have not had the opportunity to compare 
our New England plant with authentic specimens of 
Peltigera bella, — the former may prove to be 
distinct. 
N. aspera : thallo sahita glauco-fusco, "— 
