482 PAPERS ON GENTIANE. 
GENTIANA (PNEUMONANTHE) Parrvl, n. sp.: caulibus e radice perenni ascendentibus vel erectis spithameis singulis 
pluribusve simplicibus foliosis paucifloris; foliis glaucescentibus e basi lata ovato-subrotundis ovatis seu ovato-lanceo- 
latis obtusiusculis seu acutis patulis, summis angustioribus carinatis naviculatis flores sessiles involucrantibus ; floribus 
paucis capitatis magnis purpureo- 
cyaneis ; calycis 5-fidi membranacei 
integri hine plus minus spathaceo- 
fissi lobis linearibus tubo suo brevi- 
oribus ; corollze aperte tubo obconico 
calycem bis superante, lobis erectis 
late obovatis brevissime acutiuscu- 
lis plivas bifidas vix excedentibus ; 
ovario lanceolato basi in stipitem 
attenuato. 
Near the base of alpine slopes on 
the Snowy Range, Colorado, Parry, 
No. 304, the broad-leaved form ; Hall 
& Harbour, No. 470, partly a nar- 
row-leaved form ; Middle Park, Par- 
ry, a narrow-leaved, one-flowered 
variety ; a form with narrow leaves 
has also been collected by Fremont, 
Creutzfeld, and Howard, as Prof. Gray 
informs me. Flowers in August. — 
A very striking species, the large 
dark purplish blue flowers contrast- 
ing beautifully with the broad pale 
leaves ; stem 5-9 inches high, leaves 
10-12 or 15 lines long, and from 3 
to 10 lines wide, slightly roughened 
on the edges; flowers 15-18 lines 
long, enclosed by a pair of boat- 
shaped bracts; calyx with its short 
linear lobes half as long as the tube 
of the corolla, entire or sometimes 
more or less slit on one side ; lobes of 
the corolla about one-third as long as 
the tube, wider upwards than at base ; 
slender segments of the folds almost 
as long as the lobes. —The nearly 
allied G. calycosa, Gris., differs by its 
single flowers, absence of involu- 
erum, large oval lobes of calyx, and 
the length and shape of the folds ; 
G. Menziesii, Gris. and G. platype- 
tala, Gris., both, like the former, 
northwestern species, have also sin- 
gle flowers, a different calyx, and 
subcordate lobes of the corolla. The 
Asiatic G. septemjida, Pall., has long 
Puate X.— GenTiANA Parryt. folds slit into many bristle-shaped 
lobes. 
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Pl. X. represents the broad-leaved form of our species; in the figure on the left side the uppermost leaf is — 
down, to show the shape of the calyx and of the bracts ; small flower buds with their bracts are seen on the sides.* 
* Notes on several of these species are contributed by gelmann on Gentianeew from Colorado, collected by Hall 
Engelmann to Gray’s Enumeration of Plants of the Rocky & Harbour, is also appended to a paper by Asa Gray 
Mountains (Amer. Journ. Sci. and Arts, 2d ser. vol. xxxiv.), | the Proceedings of the Philadelphia Academy, Mar. 1863, 
256-257, Nos. 304-310. A short memorandum by Dr. En- p. 74. — Eps, 
