384 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM. 



Fruit oblong to rounded, less than 3 times as long as broad. 

 Ribs of the fruit not winged; flowers white or pink; plants glabrous. 

 Leaflets, at least those of the upper leaves, linear or threadlike, entire. 



6. CARTJM. 

 Leaflets lanceolate to linear, toothed. 



Ribs of the fruit equal and prominent; leaves once pinnate . . 7. SITJM. 



Ribs of the fruit unequal, those on the back of the carpel low and broad, 



those on the side prominent and thick; leaves twice pinnate or 2 or 



3 times ternate 8. CICTJTA. 



Ribs of the fruit, at least some of them, winged; flowers white or yellow; 

 plants glabrous or hairy. 

 Leaflets 10 to 30 cm. wide, few; plants very hairy, usually a meter high or 



taller 9. HERACLEUM. 



Leaflets smaller, mostly less than 5 cm. wide, usually numerous; plants 

 glabrous or very finely hairy. 



Leaves once pinnate; flowers yellow 10. PASTINACA. 



Leaves 2 or more times pinnate or ternate; flowers yellow or white. 



Leaflets entire; flowers yellow 11. COGSWELLIA. 



Leaflets toothed or lobed; flowers yellow or white. 



Plants glabrous; flowers yellow or white 12. ANGELICA. 



Plants finely hairy, at least on the leaves; flowers yellow. 

 Wings at the edges of the carpels thin, not corky; leaves mostly 



small 11. COGSWELLIA. 



Wings thick and corky; leaves broad 13. LEPTOTAENIA. 



1. BUPLEURUM L. 



1. Bupleurum americanum Coult. & Rose. Frequent on the east slope at low 

 altitudes, on dry open hillsides or on dry or wet prairie. Alaska to Wyo.^ — Perennial, 

 10 to 30 cm. high, glabrous and glaucous; leaves entire, oblong or linear-lanceolate,, 

 parallel- veined ; flowers yellow; involucels of 5 or more ovate bractlets; fruit 5 mm.. 

 long, somewhat flattened from the sides, with slender ribs. 



2. ZIZIA Koch. 



1. Zizia cordata (Walt.) Koch. Meadow parsnip. Low meadows and prairie 

 at St. Mary and east entrance. B. C. to Oreg., Utah, Ga., and Conn. — 

 Glabrous perennial, 20 to 60 cm. high; basal leaves heart-shaped 2 to 8 cm. long, 

 with rounded teeth; stem leaves with 3 ovate or lanceolate, toothed leaflets; flowers 

 yellow; bracts none, the bractlets small; fruit 3 mm. long, somewhat flattened fromi 

 the sides, with slender ribs. 



3. SANICULA L. 



1. Sanicula marilandica L. Bur snakeroot. Frequent at low and middle 

 altitudes, especially on the west slope, usually in wet thickets. B. C. and Wash, to 

 Colo., Ga., and Newf. — Glabrous perennial, 30 to 60 cm. high, with rootstocks; basal 

 leaves long-stalked, composed of 3 leaflets, the 2 outer ones deeply 2-lobed; leaflets 



5 to 8 cm. long, cut and toothed; flowers greenish yellow, in headlike clusters; fruit. 



6 to 7 mm. long, covered with hooked bristles. 

 The fruits cling readily to clothing. 



4. OSMOE.RHIZA Raf. Sweet cicely. 



Perennials with thick strong-scented roots; leaves 3-parted, the leaflets thin, lobed 

 or toothed; flowers few, white, in small umbels; involucre wanting or of 1 or 2 small 

 bracts; fruit linear or clul)-shaped, bristly. 



Pedicels longer than the fruit 1. O. divaricata. 



Pedicels shorter than the fruit S. O. brevipes. 



