Lichenes of New England. 251 
clusion was the result of actual study of the plants in all 
their stages. So far as Squamaria is concerned, this 
discovery will only remove a somewhat anomalous form 
from that genus. 
P. sty/gia, Ach. Meth., Scher.!, E. Bot. t. 2048, 
Hook., Lichen stygius, L. Alpine ticks on the peak of 
Mt. Washington below the summit. Standing here, 
at an'elevation of nearly six thousand feet, I gathered 
the lichens of St. Gothard and Ben Nevis. Nor were 
inspiring memories wanting of him, who made Lappo- 
nian Alps poetic ground; as on the rocks, and little 
patches of sedgy pasture of Mount Washington, I hailed 
the forms. that he discovered and illustrated. - And this 
I felt was no unworthy enthusiasm. The eloquent 
words of Garden came back with freshened force upon 
my mind, and with him I said :—It is “our duty to our 
fellow-creatures, which obliges us, as members of the 
great society, to contribute our mite towards a proper 
knowledge of the works of our Common Father.” — 
den to Ellis, 13th Jan. 1756, Linn. Corresp.). 
In all, I have twenty-four species of the genus Par- 
mèlia, collected in New England. -There are probably 
some Alpine forms, not yet ascertained. 
Sricra crocdta, Ach. This lichen, only surpassed 
by S. aurata in beauty, and with: it, commonly an in- 
habitant of tropical regions, was discovered by Dr. Por- 
ter at Ashfield, from which station I have a specimen. 
Dr. Porter has since found it in Plainfield, and I have 
had the good fortune to detect it, in fine condition, on 
wood from this vicinity. Muhlenberg’s plant is doubt- 
ful, by his own mark. Massachusetts, is the only sta- 
