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Peltigera , that pretty green lichen with its very broad thallus is quite 
common. A walk through any wooded ravine is sure to be rewarded by the 
finding of one or more species of this interesting lichen growing over mosses 
or on the damp earth. 
P armelia as already stated is well represented by Borreri var. rudecta. 
Growing with it one very frequently finds Pyxine sorediata. They look very 
much alike. I remember collecting both together thinking them one species, 
but one soon learns to know them apart, besides a little scratch on the thallus 
soon tells that it is Pyxine , if the medulla is yellow, and P armelia if it is 
white. One of my best finds, probably was the finding of Parmelia pertusa. 
It seems to "be quite rare. 
Cetraria in so many respects similiar to Parmelia is' also wellrepre- 
sented. In our sandy pine-covered regions, I am sure of finding ciliaris, 
aleurilis, and lacunosa ; but in our hilly regions a pretty find is Cetraria 
Okesiana. 
Physcia is represented by eleven specimens. The most common species 
here is I believe tribacia. It was the trying to determine Physcia hypo- 
leuca which caused me to become interested in the study of lichens. 
Usnea so easily recognized, is not over common and seems to be disap- 
pearing. It delights to grow in moisture laden regions and as these disap- 
pear by the cutting down of the trees, and the better draining of the land, 
Usnea also disappears. 
I might dwell on other and less common species but will come to a close 
with this pretty little plea for the study of lichens by the Rev. J. S. Cutler: 
When all the birds have left us and flown away to far off sunny climes; 
when the last frost-flowers have drooped and faded; and the last withered 
leaf has fallen in the silent woods ; there still remains for the true lover of 
Nature a rare treat in the study of those faithful little children of the rough 
and rugged places— the lichens. No bitting frost can frighten them ; no bel- 
lowing of the north wind can disconcert them nor disturb their calm serenity. 
Steadfast, undaunted, brave, sturdy, and faithful, they cling to the bare 
flinty surface where they abide, to prove that, in spite of winter and storm 
and desolation, there is still one warm spot in Nature’s heart.” 
Baltimore, Maryland. 
CURRENT LITERATURE. 
La Flore Bryologique des Terres Magellaniques, de la Georgia du Sud, et 
de l’Antarctide, par Jules Cardot. 
John M. Holzinger. 
In 1901 Mr. Cardot published the “ Flore Bryologique des Terres Magel- 
laniques.'’ This was based on the collections brought back by the Belgian 
Antarctic Expedition, and was briefly reviewed by the writer in The Bryol- 
ogist, Feb. 1902, p. 28. The present work appearing in small quarto form 
at Stockholm, 1908, is part 8 of Vol. IV, Botany on the Reports on the Swed- 
ish South Pole Expedition (Schwedische Siidpolar Expedition) of which so far 
