ends; peduncles 1-8 cm. long or some umbels sessile; involucre of several linear or 

 linear-lanceolate reflexed bracts 2-6 mm. long; involucel of several linear bractlets 

 1-5 mm. long; rays 3 to 12, slender, 5-35 mm. long; pedicels 4 to 20, 2-8 mm. 

 long; calyx teeth 0.5 mm. long or less, attached well below and shorter than the 

 stylopodium; fruit oblong-oval, 2-4 mm. long, 1-2 mm. broad, the dorsal ribs low, 

 the lateral corky wings slightly broader. Cynosciadiutn pinnatum DC. 



In wet places, banks of ponds and lakes in Okla. (Comanche and LeFlore cos.) 

 and in the e. half of Tex., s. to the Rio Grande Plains, May-June; from Tex. and 

 La., n. to 111. and Kan. 



2. Limnosci&dium pumilum (Engelm. &. Gray) Math. & Const. Fig. 594. 



Plant low and diffuse, 5-40 cm. high or long; basal leaves lanceolate to linear- 

 lanceolate, acute at the apex, tapering at the base, to 8 cm. long and 8 mm. wide, 

 entire and septate or pinnate, the terminal division elongate; cauline leaves pinnate 

 or entire, with 3 to 7 filiform to lanceolate divisions, acute at the apex, tapering 

 at the base; peduncles 5-75 mm. long or frequently some umbels sessile; involucre 

 lacking or of a few minute bracts; involucel of several linear to linear-lanceolate 

 bractlets 2-4 mm. long; rays 3 to 8, slender, 1-5 cm. long; pedicels several, 2-4 

 mm. long; calyx teeth to 1.5 mm. long, attached shortly below and about equaling 

 the stylopodium; fruit oval to orbicular, 2-3 mm. long, 2 mm. broad, the dorsal 

 ribs filiform, the lateral wings broad and corky. Cynosciadium pumilum (Engelm. 

 & Gray) Couh. & Rose. 



In seeping meadows, bogs and other wet places in cen. and s. Tex., Mar.-June; 

 endemic. 



23. Conioselinum Hoffm. 



A genus of about 10 species of North America and Eurasia, mostly in boreal 

 or mountainous regions. 



1. Conioselinum scopulorum (Gray) Coult. & Rose 



Plants perennial from a cluster of fleshy roots, caulescent, nearly simple, 6-9 

 dm. high, more or less leafy, with puberulent inflorescence; lower leaves often very 

 large, twice- to thrice-ternate then once- or twice-pinnate; leaflets (sometimes 

 small) laciniately pinnatifid; upper leaves often ternate-pinnate or simply pinnately 

 compound; umbel of numerous rays, with involucels of several narrowly linear 

 elongated bractlets; rays (fruiting) 5-7.5 cm. long; pedicels 12 mm. long; flowers 

 white; calyx teeth obsolete; stylopodium conic; fruit about 6 mm. long; oil tubes 

 usually 1 in the dorsal intervals and 2 in the lateral, 2 to 4 on the commissural side. 



In streams or on riverbanks in N. M. (Taos, Otero, San Juan, Bernalillo, 

 Socorro and Grant cos.), Ariz. (Navajo, Graham, Cochise and Pima cos.), Aug.- 

 Sept.; N.M., Ariz., Colo, and Ut. to e. Ore. 



24. Angelica L. 



A circumboreal genus of about 50 species, 



1. Angelica pinnata Wats. 



Perennial, glabrous or the leaves and inflorescences sometimes scabrous; stems 

 2.5-9 dm. high, rather slender; leaves once-pinnate or incompletely bipinnate; 

 leaflets lanceolate to ovate-lanceolate, 3-9 cm. long, sessile or nearly so, serrate to 

 rarely entire, some of the lower often lobed or nearly divided; cauline leaves with 

 rather conspicuously dilated petioles; peduncles exceeding the leaves; umbels com- 

 pound; involucre wanting or of sheathlike bracts; involucel wanting; rays 6 to 25, 

 ascending or spreading-ascending, unequal, the whole umbel somewhat flattened 

 above; pedicels 3-8 mm. long, spreading and ascending; flowers white or pinkish; 



1249 



