184 PITTONIA. 
part of the material is properly referable to the Old World 
S. perennis. The only species often collected with us, and 
common in herbaria under the name of S. perennis, is à 
Rocky Mountain plant, subalpine or even alpine as to its 
habitat, and very unlike the real S. perennis, both in habit 
and floral characters. The European plant has a somewhat 
loose and panicled inflorescence, with pentamerous flowers, 
while in ours the inflorescence is very strict and thyrsiform 
and the flowers tetramerous. The nectaries in the former are 
fringed with copious long and quite capillary appendages, 
while in ours they are bordered by only a few short dilated 
and broadly subulate ones. These are specifie characters of 
the first class; and the discovery of them necessitates the 
recognition of a new species which I name: 
^S.SCOPULINA. From a few inches to nearly two feet high: 
inflorescence very strict: broadly oblanceolate or spatulate- 
oblanceolate radical leaves very large, often of more than 
half the length of the subseapiform stem, usually all, even 
the lowest and largest cauline ones alternate, with broad 
winged petioles and half-clasping: flowers 4-merous: sepals 
lanceolate-subulate, often 3-nerved and three-fourths as long 
as the corolla-lobes, these fully one-half inch long, dark blue- 
purple: glands subulate-fringed : seeds round-obovate vary- 
ing to somewhat quadrangular, very distinctly winged on 
one, two or three sides, the testa wrinkled. 
Common in the subalpine districts of middle and south- 
ern Colorado; the best specimens. those of my own collect- 
ing on Little Ouray Mountain, near Marshall Pass, 3 Sept., 
1896. I think all the Rocky Mountain Swertia may belong 
here; yet am not positive of that. 
'S.occrpENTALIs. Commonly a foot and a half high: 
leaves all opposite, the lowest pair oblong, obtuse, 3 to 4 
