some Lichens of New England. 99 
P. (Physcia) detonsa, Fries Syst. Orb. Veg. (fide ips.) 
P. Nove’ Anglie, Mihi olim, P. aquila, Muhl. Catal. ? — 
Trunks of trees, but not very general, fertile: on the coast I 
have found the best specimens on rocks. | Distributed by me 
under the name above cited, but not published. Professor 
Fries pronounced the lichen to be his P. detonsa. -It resem- 
bles P. aquila considerably, and may therefore be the plant so 
named by Muhlenberg. — . 
ui (Physcia) Aypoleuca, Muhl. Catal., Eaton Man., P. spe- 
ciosa 9. hypoleuca, Ach.! Syn. p. 211., P. speciosa, Ach. 
herb.! 'uckerm. Enum. Lich. N. Eng. in Bost. Jour. III. 
988. — Trunks of trees; near Boston, and southern parts of 
New Hampshire. Certainly a distinet species. No descrip- 
tion was published by Muhlenberg, but this defect was sup- 
plied inthe sixth edition of Eaton’s Manual. The name is 
hot very appropriate ; and might well have been speciosissima. 
P. (Amphiloma) rubiginosa, (Thunb.) Ach.; Fries Lich. p. 
88., — B. ‘conoplea? Fr., P. conoplea, Ach. Lichenogr. p. 
467, Pannaria, Delis. — Rocks of the Notch. Two small 
infertile specimens are all I have seen. ‘They perfectly re- 
semble my specimens of the foreign lichen, but of themselves 
re insufficient to place the matter beyond doubt. This is a 
very curious section: of. the genus, and everything that may 
tend to illustrate it in our Flora is interesting. 
p (Amphiloma) lanuginosa, Ach. Meth., Lichenogr. p. 
465, Fries Lich. p. 88.— 8. Fr. Lichen lanuginosus, Ach. 
Lich. Suec., Imbricaria, Decand., et Lepraria incana, Auct. 
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