sh ag OF THE FLORA OF COLORADO. 51 
4/-6' — erect, narrow, on long petioles, somenne rigid, pinnate, the 
leaflets 6-10 pairs, pinnately parted, segm entire or laciniately 
lobed, linear, pungently acute; se apes equ brains ro exceeding the leaves, 
yor high; rays 6-12, unequal; involucre bribed none; involucels of 
6-8 lin subulate lea aflets equaling the white flowers; calyx-teeth con- 
Sei eate dinear. subulate, foliaceous; fruit 2” long, irregularly winged, 
the lateral ribs and the do Heal one usually broader, rather thick, and not 
ranous rites obscure, 1 in each narrow interval, 2-4 in the com- 
missure ; seeds slightly concave, somewhat crenately suleate vee the 
dorsal intervals.—In the mountains. Hall & Harbour, 222; Can 
Sestanaat TRACHYSPERMUM, Nutt. Deet sate bee avis = Sea . 
fid, segments pinnatifid, rather obtuse, lobes often 2-3 cleft and very 
short, “rachis ide; in volucel about 8-le aved, short; fruit short, oval, 
pulverulently- scabrous. Near IM. denartouvuae Nutt., but stb Fruit 
only half as large, nearly gi brbad bs long.— Hall & Harbor 
MUSENI UM @REENI, Gr. Proc. Am. Acad., Feb., 1872, v.8,p. 3 387. tem- 
less; leaves all from a ’ caudex squamose at ‘the: suminit, almost simply 
pinnate, narrow; leaflets 7-9, on a rachis margined only above, sessile, 
subovate in outline, pinnately 5-7 lobed and ietooa. teeth and lobes 
Sharp; scapes more than a span high, wl aked; 
o g, 0 
crowned with the ovate, oe i calyx-teeth ; ribs r prominent, 
very harrow ; vitte between, 1-2, large; beneath solitary P aanath ss hs nt- 
ains above Golden City, Greene. 
LIGUSTICUM APIIFOLIUM, Benth. & Hook., Proc. Am. Acad., 7, p. 347. 5 
| (Cynepium, Nutt.) Stems 2°-4° high, terete, leafy or naked, branching 
_towards the summit, with 2-4 umbels on long peduncles; ‘leaves pin- 
t 
aol: decompound, the segments incisely lobed, acute; cauline leaves. 
ternate, upon hort dilated sheath; involuere none; involucel few- 
leaved, lateral; gl rie atte: ; the s oda t 
nal ri idge. —Platte gaa: and in thie Sierra Madre ee nge, oulter, We 
Mountain Valley, Brandegee. Hall & Harbour, 21 Wesel” Cae. ° 
* laev SCOPULORUM, Gr. Proc. Am. Acad.,7, p. 347. Fat omer ped 
eply incise 
2°-4° high; 
teeth very ’ac eute; fruit elliptical- oblong, 4! long; wings narrow, thick- 
ened, intermediate and dorsal 1-2, often obsolete; vitta marked, rather 
he seed almost reniform. Wists’ 1 subalpi ne ae & Harbour, 216., 
Cation City, Brandegee. Near Denver, Can Ca LB rd t fe 
Ligusticum eee wears Gr. re ga montana, es 
tb FL 
7,) Proc. Am. Acad., 7, p. 347. Very smooth; s coe nder, from a 
thick fusiform root, 19-2° high; hiavea twice renal divides leallets ew 
one trifid, lobes oblong or ’ lanceolate, rthe 
USENIUM, Nutt. Margin of the calyx 5-toothed; the teeth ace oa Petals 
erm rn A int intle sed Styles slender, reflexed, ra rather lon . ras Page or 
ovate-oblon laterall presse rig, ee or less me « ‘ith 
‘orm, ache, slighily ete A A ribs. with eurvede Pore with. 
4 vittee. Carpophore 2-cleft. Seed with ei peo ais ineurve — 
dwarf, rather fetid, resiniferous (North American mae pent herbs, with fusif fu “ aha id a 
short caudex, or branching dichotomously from the _ Leaves = pinnat = 
2 ae ar oe wr of a few rather # rigid narrow leatie Flow 
yellow or white. T. § G. Fl. N. Am. 
C gusezel ot Ve ATH fe . Seeme- ee =A 2 
m j 
Fs satel Mi urn ee 
ee see — 
