630 AMMIACEAE 



linear or lance-linear, 5-6 mm. long; flowers apparently straw-colored or ochro- 

 leucous; fruit about 9 mm. long, 6 mm. wide; lateral wings about as broad as 

 the body; oil-tubes 2-4 in the intervals, 4-6 on the commissure, rather obscure. 

 Canons: Utah. Son. Jl. 



6. C. brecciarum (M. E. Jones) Rydb. Leaves biternate; leaflets 2.5 cm. 

 long, tapering at both ends, narrowly linear, glabrous; rays few and unequal; 

 bracts none; involucels setaceous; pedicels 4-5 mm. long; flowers greenish yellow, 

 turning purplish; fruit over 1 cm. long, with narrow and thick lateral wings; 

 dorsal ribs sharp, raised; oil-tubes 2 in the intervals. Cogswellia brecciarum M. 

 E. Jones. High mountains: Mont. Mont. Au. 



6. C. Eastwoodae Coult. & Rose. Leaves very narrow in outline, once or 

 twice pinnate, very scabrous; segments short and narrow, cuspidate; pedicels 

 12-18 mm. long; bractlets several, linear, entire; fruit glabrous, 8-10 mm. long; 

 wings nearly as broad as the body. Hills and plains: Colo. Submont. My-Je. 



7. C. scabrum Coult. & Rose. Scape 1-2 dm. high, scabrous throughout; 

 leaves very scabrous, narrowly lanceolate in outline, bipinnate ; ultimate divisions 

 short, ovate, cuspidate; bractlets setaceous, somewhat scarious and united at 

 the base; pedicels 2-6 mm. long; flowers yellow; fruit oval, glabrous, 7-9 mm. 

 long, 4-6 mm. wide; wings half as broad as the body. Dry hills: Utah. Son. 

 Submont. Ap-Je. 



36. ANGELICA L. ANGELICA. 



Stout perennials, with a woody root. Leaves ternate-pinnately or pinnately 

 compound, usually with broad segments. Flowers white, or rarely greenish 

 yellow or purplish, in large umbels. Bracts scanty or none, in one species foli- 

 aceous; bractlets small or wanting. Calyx-teeth mostly wanting. Stylopodium 

 conic. Fruit flattened dorsally, ovate or oblong, glabrous or pubescent, with a 

 prominent crenulate disk. Dorsal and intermediate ribs strong, the lateral ones 

 broadly winged; wings distinct from those of the other carpel. Oil-tubes one to 

 several in each interval, or indefinite, 2-10 on the commissural side. Seed-face 

 plane or slightly concave. 



Oil-tubes mostly solitary in the intervals, not continuous around the seed; rays of the 



umbels ascending. 

 Involucre and involucels of several foliaceous, lacerately toothed bracts. 



1. A. Dawsoni. 



Involucre none or consisting of 1-2 small bracts. 

 Involucels of many bractlets. 



Bractlets lanceolate, acuminate. 2. A. Grayi. 



Bractlets linear-filiform. 3. A. genuiflexa. 



Involucels none, or of a few linear-subulate or filiform bractlets. 

 Plant glabrous up to the inflorescence. 

 Fruit glabrous or nearly so. 



Fruit 3-3.5 mm. long; oil-tubes solitary in the interval, except in the 



lateral ones, where they are usually in pairs. 4. A. leporina. 



Fruit over 5 mm. long; oil-tubes solitary in all the intervals. 



Leaves once pinnate, or the lower primary divisions short-petioled 



and again pinnate. 5. A. pinnata. 



Leaves ternate and then pinnate, the lower primary divisions long- 



petiolate. 

 Divisions of the leaves and their teeth lanceolate, acuminate. 



6. A. arguta. 

 Divisions of the leaves and their teeth ovate, acute or obtuse. 



Teeth of the leaves acute; plant perfectly glabrous. 



7. A. Lyallii. 

 Teeth of the leaves obtuse, with a callous mucro; leaves 



slightly pubescent on the sheaths, leaf-stalks, and veins 

 beneath. 8. A. Piperi. 



Fruit hispid; leaves twice compound. 



Rays numerous; leaflets broadly ovate or obovate; pedicels longer than 



the fruit. 9. A. dilatata. 



Rays few; leaflets lanceolate or linear-lanceolate; pedicels and fruit 



subequal. 10. A. Kingii. 



Plant more or less scabrous or pubescent, at least on the sheath, leaf-stalks, 



and veins beneath. 

 Fruit glabrous; leaves sparingly short-hispid on the sheaths, petioles, and 



veins. 8. A. Piperi. 



Fruit hispid or rough-puberulent ; leaves rough-pubescent. 



Oil-tubes solitary in the intervals; pedicels and fruit rough-puberulent. 



11. A. Roseana. 



