386 Statistics of the Flora of the Northern States. 
Patagonia and Falkland I 
Aira cespitosa. Colder parts of the northern hemisphere. » Ant- 
arctic America and New Zealand, fide Hooker. 
Trisetum subspicatum. Alpine and arctic exclusively in Europe, 
Asia and N. America (except the var. mol/e, which is rarely 
ever subalpine in the Northern States); advancing south along 
the Rocky Mountains to about lat. 40°. Andes of Mexico, 
' Colombia, and Peru, fide Hooker. Antarctic America and 
Campbell Islands: also Tasmania, fide Hooker. 
Hierochloa borealis. Around the colder parts of the northern 
hemisphere. New Zealand, and Tasmania, jide Hooker. _ 
To this list of 69 phsenogamous species of our flora inhabiting 
very widely sundered stations, the following Ferns should 
appended, namely : 
Scolopendrium officinarum. Banks of a deep ravine in Madison 
County, New York, where it abounds; the only American 
habitat known. Europe and Northern Asia. 
? Camptosorus rhizophyllus. Atlantic United States, peti 
the Alleghanies, and north to the Saskatchawan. Siberia an 
~ Kamtschatka ? : 
Adiantum pedatum. Eastern United States and Canada to Ore- 
gon and Unalaschka. Kamtschatka, Japan, Nepal. 
Aira flecuosa. Northern hemisphere, throughout the cooler parts. 
slands. 
ever, distinguishes from our P. sedoides by its seeds. a 
These species of widely sundered habitation arrange them- 
ber, or nearly half of our list. And to this number might 
ed several other species, common to our northern and to 
southern regions, but not occurring in our Flora; such as 
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