‘266 UMBELLIFER2&. LEIBERGYA. 
GLYCOSMA. 
yellow flowers. 
B. Americanum C. & -R. Rev: Umb. 115. Radical leaves linear- 
danceolate, cauline ones very variable, oblong to linear, more or less clasp- 
inz: rays unequal, 6-24 lines long, with involucre of 3-5 unequal bracts 
and involucels of 5-8 rather small ovate bractlets: pedicels short: carpel 
with prominent ribs, oil-tubes continuous about the seed-cavity and one 
in each rib. Seed-face plane. Alaska to Yellowstone Park, perhaps 
Washington. ) 
26 LEIBERGIA OC. & R. Contr. Nat. Herb. iii, 675, t. xxvii. 
Slender glabrous acaulescent plants from a small globose root, 
ternately divided leaves and irregular umbels of white flowers. 
‘Calyx-teeth obsolete. Fruit flattened laterally, linear, beaked, 
glabrous: stylopodium wanting. Carpels only slightly flattened 
dorsally, with 5 filiform ribs, the 2 lateral a little more promi- 
nent and turned inward. Oil-tubes small, solitary in the inter- 
vals, 2 on the commissure. Seed-face slightly concave but when 
dry becoming more or less involute... | 
L. orogenioides C. & R. 1. c. Stem slender 6-2) inches high; leaves 
mearly as long as the flowering peduncle: leaflets linear, 144-4 inches 
long, entire or with a few teeth or linear lobes: rays of the umbel 3-10, 
very slender, often spreading, 1-6 inches long; umbellets with few fl -wers 
and fruits: involucre none ;involucels of few small bracts that are somewhat 
united at base: fruit 4 lines long, flattened laterally but terete at base, 
‘terete and somewhat beaked at apex. Along small streams, Coeur d’Alene 
Mountains Idaho, Spokane Co., Washington. 
27 OSMORHIZA Jour. Phys. lxxxix. 
Perennials from thick aromatic roots, with ternately decom- 
pound leaves, ovate variously toothe leaflets, invelucre and in- 
volucels few-leaved or wanting and white flowers in few-rayed 
and few-fruited umbels. Calyx-lobes obsolete. Fruit linear to 
linear-oblong, caudate, attenuate at base, acute above, very 
bristly on the ribs. Carpel slightly flattened dorsally or not at 
all, nearly pentagonal in section, with equal ribs and thin peri- 
carp. Oil-tubes obsolete in mature fruit. 
0. nuda Torr. Pac. R. R. Rep, iv, 93. Stems rather slender, 1-3 feet 
high, divaricately branched, somewhat pubescent or glabrous: leaves 
twice ternate; leaflets 6-24 lines long, toothed and cleft: umbel long ped- 
uncled, 3-6-rayed, mostly naked; rays slender, spreading 2-4 inches long: 
pedicels 2-12 lines long: fruit with not very prominent ribs: stylopodium 
and style very short, seed-face concave. Very common in wooded dis- 
tricts. Alaska to California and the Rocky mountains. nt 
28 GLYCOSMA Nutt. T. &G. Fl. i, 639. 
Mostly tall perennials from thick aromatic roots with ter- 
nately decompound leaves, ovate variously toothed leaflets, 
mostly without involucre or involucels, and white flowers in few- 
rayed umbels. Calyx-teeth obsolete. Fruit linear to linear-ob- 
Jong, not attenuate at base, acute above, glabrous or somewhat 
