COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 109 
1. Leibergia orogenioides C. & R. Contr. Nat. Herb. 3:575. pl. 27. 1896. 
Puate III. 
Slender, 1.2 to 5 dm. high; leaves nearly as long as the flowering 
peduncle; leaflets 1 to 7.5 cm. long, entire or with few teeth or linear 
lobes; rays of the umbel 3 to 10, very slender, often spreading, very 
unequal, 2 to 12 cm. long; umbellets with few flowers and fruits; 
pedicels 2 mm. or less long; involucre wanting; involucels of 3 or 4 
small bractlets somewhat united at base; fruit 8 mm. long, flattened 
laterally but terete at base, terete and somewhat beaked at apex. 
Type locality, ‘‘ Santianne Creek bottoms, Coeur d’Alene Mountains, 
Idaho, altitude 950 meters;” collected by Leberg, no. 1027, June 24, 
1895; type in U.S. Nat. Herb. 
Wet ground, along streams, Idaho and Washington. 
Specimens examined: 
IpaHo: Type specimens, as cited under type locality. 
WasHincton: Low, damp ground along streams, Spokane River, Suksdorf 1211, 
May 13, 1889. 
EXPLANATION OF PLATE III.—Fig. 1, plant; 2, umbel; 3 and 4, fruit; 5, cross section of carpel. 
We quote Mr. Leiberg’s description of the plant in its habitat, as follows: ‘‘ The 
plant, in the region where I collected it, occupies the same place in the flora of the 
heavily forested region of the lower white pine zone as do the tuberous-rooted, 
early flowering species of Peucedanum on the open plains of the Columbia, in 
Oregon, Washington, and Idaho; that is to say, it is an early flowering species, com- 
ing into bloom very soon after the snow leaves, preferring basaltic formations or 
soils derived from basaltic rocks. Wherever it grows it appears in such abundance 
that at the time of flowering it quite hides all other species.’’ 
31. TAENIDIA Drude in Engler & Prantl, Nat. Pflanzfam. 3°: 195. 
1898. 
Calyx teeth obsolete. Fruit flattened laterally, broadly oblong, 
glabrous. Carpel with equal fili- 
form ribs. Stylopodium wanting. 
Oil tubes mostly 3 in the intervals, 
4 on the commissural side. Seed 
nearly terete in section, with plane 
face. 
Glabrous and glaucous perennials, 
with ternately compound leaves, 
usually no involucre or involucels, 
and yellow flowers. 
A monotypic genus (based on 
Smyrnium tntegerremum Li.) of 
the Eastern United States and Fic, 29.—Taenidia integerrima: 
a, x8; b, x10. 
Canada. 
1. Taenidia integerrima (L.) Drude, |. ¢. Fira. 29. 
Smyrnium integerrimumn L. Sp. Pl 1: 268. 1753. 
Zizia integerrima DC. Mém. Soc. Phys. Genéy. 4: 498. 1828. 
Pimpinella integerrima Gray, Proc. Am. Acad. 7: 345, 1868, 
