454 
TRANS. OF THE ACAD. OF SCIENCE. 
stamens as long as the ovary, so that the style, which is of 
the same length, protrudes beyond them; seeds 0.25-0.27 
line long, oblanceolate and acute, or, in the Fort Whipple 
specimens, obovate and upwards obtuse; these specimens are 
also distinguished by the absence of all traces of stolons, and 
by the slightly roughened surface of the upper part of the 
stem.—-From the closely allied J. falcatus our plant is dis¬ 
tinguished by the greater size, the paniculate heads, the 
shape, proportion, and surface of the sepals, and the shape of 
the seeds. 
30. J. leptocaulis, Torrey & Gray in Herb. Durand: 
caulibus csespitosis erectis (spithameis pedalibus) gracilibus 
compressiusculis fistulosis paucifoliis ; foliis planis caule brevi¬ 
oribus ; capitulis singulis seu paucis (1-3) spatham fere sequan- 
tibus 3-6-fioris; bracteis ovatis aristatis flore subpedicellato 
plerumque brevioribus; sepalis ovato-lanceolatis acuminato- 
aristatis aequalibus seu exterioribus paulo brevioribus stamina 
3-6 et capsulam obovatam tricoceam retusam mucronatam 
trilocularem quarta parte superantibus; antheris oblongo 
linearibus filamento bis terve brevioribus; stigmatibus ovari¬ 
um obovatum cum stylo perbrevi sequantibus inclusis; semi- 
nibus obovatis apiculatis costato-lineolatis. — J. filipendulus y 
Buckley in Proc. Acad. Phil. 1862, p. 8. 
Arkansas, Herb. Durand , .Western Texas, Lindheimer y 
Wright , Buckley. —Whole plant light green; gracile stems 
6 or 8 to 12 and 14 inches high, growing in dense tufts from 
very small but apparently perennial rhizomas; heads single 
or, rarely, two or three, the secondary ones pedunculate and 
overtopping the primary one, in fruit 4-5 lines in diameter, 
consisting of 3-6 or 7 light green flowers; flowers not quite 
M lines long, remarkable for the elongated sharp points of 
the inner as well as the outer sepals, and for the irregular 
number of stamens; stamens sometimes 3, often 4 or 5, rarely 
6, some of the inner ones commonly depauperate, with very 
slender filaments and extremely small anthers; seeds very 
similar to those of the next species, 0.22 line long, with about 
6 strong and dark ribs visible on one side. 
I had to change the only published name of this species, 
J. filipendulus , because it is absolutely wrong, the jibrous 
rootlets bearing no tubers at all; intending to substitute the 
name of the author and call it J. Buckleyi (p. 485), I dis¬ 
covered, from a label in Mr. Durand’s herbarium, that Torrey 
and Gray had already named the species, I therefore adopt 
their very appropriate designation. 
31. J. MARGINATUS, Rostk. Mon. June. 38, t. 2, f. 2; a well 
known species which grows all over the eastern and interior 
States, and down to Texas as far as woodlands extend, but 
has not been found in the western plains or mountains. It is 
