E. Tuckerman on North American Lichens. 423 
coats,” J. S. Vew seen = ! I follow Dr. Nylander in reéstablishing 
the ng Alectoria, A 
_ HAMALIN re TENUIS, rr et Tuckerm. Mss., thallo czespiticio cartilagineo 
rigido ie li plano-compresso levigato viridi-glaucesce cente, ramis lineari- 
bus Slee elongatis patentibus flexuosisque attenuatis, ultimis teretibus 
apicibus elongatis acutis; apotheciis majusculis marginalibus podicellatis 
a ong te it eco marginem tenuem inflexum crenulatum 
emum exceden 
flab, Trees thie ‘kets of the Blanco, Texas, Mfr. C. Wright! South 
— HI, W. Ravenel, Esq.! Florida, Dr. Blodgett! Lattin, Dr. 
R. tzProvanraa; sp. nova, thallo elongato membranaceo complanato 
levigato Jaucescente, ramis linearibus subsimplicibus reticulato-sublacu- 
hosis apice digitato-ramosis attenuatis acutis; apotheciis marginalibus 
tenuibus podicelats margine incurvo persistente discum concavum albo- 
Pruinosum cingen R. gree Tuckerm. Synops., p. 12, arb non 
Tayl. R. Seo cite var. tenuissima, Hook. and Arn. in Beechey’s Voy. 
aris q 
" = San Dees Galeacois s on Obione canescens, Dr. paar (comm. 
orre 
fs ARIA CHRYSANTHA, sp. nova, thallo ochroleuco amplissimo ese 
gineo foliaceo ruguloso r reticulato-lacunoso, lobis expansis rotundatis ¢ 
is ee adscendentibus crispis, subtus piceo levigato nitido ad 
pallescente; apotheciis loborum marginibus antice adnatis 
scntalliforneibue disco plano e sanguineo-rabro nigrescente margine tenui 
erenulato. ©. glauca 8. eee Babingt. in litt. 
Hab. Kotzebue’s Sound, Rev. C. Babington ! Rocks on an island of 
the Asiatic coast of Bobrivg’s straits Mr. Wright! And fertile, on rocks 
of the coast of Japan, Mr. Wright! Distinct from C. glauca, as the per- 
sis fertile specimens ‘abundantly show, and contrary to what is the case 
10 that s species, it is, so far as our specimens go, the broad-lobed, depressed 
State, which is fertile j in this. 
, =8I0DERMA WaieHrm, sp. nova, thallo coriaceo crasso molli tomentoso 
Vitidi-Ascescente, lobis subangustatis profunde sinuato-divisis ambitu 
Totundatis crenatis, subtus e tomento denso fusco-nigricante spon, gioso- 
Pannoso ; apotheciis (centro ‘fis subpodicellatis) lobulis discoideis 
alibus 
Hab. ‘Trees on the top of Loma del Gato, = Mr. Wright! Grow- 
ing with it is another ver different species of this curious and little 
known genus, which is py ably E. —, Mont The only other.spe- 
Present h te the aspect of well-marked specimens of Peltig- 
era et are not wanting resemblances, particularly on 
the under side, to Pannaria. 
