Pimpinella. UMBELLIFER^E. 259 



1. A. angustifolium, jSTutt. A span or two high ; branches somewhat dichoto- 

 mous : leaves 1 or '2 inches long, biteruately or triternately divided, with linear or 

 nearly filiform segments : umbels and umbellets very unequally 3 4-rayed, the 

 slender pedicels at length spinosely pointed with the persistent carpophore : fruit 

 half a line long, somewhat broader, variable in the curvature of the carpels and in 

 the prominence of the ribs, which are sometimes nine, the primary and intermediate 

 ones being nearly equally developed. Torr. & Gray, Fl. i. 644 ; Torrey, Bot. Mex. 

 Bound, t. 28. A. latifolium, Nutt. 1. c., the more coarsely dissected form. Helo- 

 sciadinm leptophyllum, var. (\) lati/olium, Hook. & Arn. Bot. Beechey, 347. 



Frequent in spring in the western portion of the State, from San Diego to Mendocino County, 

 on hillsides. In the figure cited, some of the characters of the fruit are incorrectly shown. 



9. CARUM, Linn. 



Calyx-teeth small. Stylopodium conical. Fruit ovate or oblong, laterally com- 

 pressed; ribs obtuse, scarcely prominent or nerve-like; oil-tubes solitary in the inter- 

 vals. Seed subterete or somewhat dorsally compressed, convex, flat, or slightly 

 concave on the face. Carpophore 2-parted. The American species form the sec- 

 tion JSdosmia, smooth erect slender biennial herbs, with tuberous or fusiform 

 fascicled roots ; leaves mostly simply pinnate with few linear leaflets ; involucre 

 and involucels of few to many entire leaflets ; flowers white ; calyx-teeth rather 

 prominent ; section of the seed very variable in outline. 



The genus as limited by Bentham & Hooker includes about 50 species in temperate and sub- 

 tropical regions, chiefly of the Old World, one species (C. Carvi, the garden Carroway) being 

 often cultivated and extensively naturalized. The roots of both the Californian species are a 

 prominent article of food among the Indians. 



1. C. G-airdneri, Benth. & Hook. Stem 1 to 4 feet high, from a tuberous root : 

 leaves few, usually simply pinnate, with 3 to 7 linear leaflets 2 to 6 inches long, the 

 lower leaflets rarely pinnate with entire or toothed divisions ; upper leaves usually 

 simple : umbels on long peduncles, 6 to 12 rayed ; the involucre of a single linear 

 leaflet, or often wanting ; rays an inch or two long ; involucels of several linear 

 acuminate bracts equalling the flowers : fruit 1 to 1^ lines long, ovate to oblong, 

 the styles usually half as long as the fruit. Atenia Gairdneri, Hook. & Arn. Bot. 

 Beechey, 349. Edosmia Gairdneri, Nutt. in Torr. & Gray, Fl. i. 612. 



Frequent from Washington Territory and Idaho to Southern California (chiefly in the Sierra 

 Nevada) and Utah, on hillsides and in the mountains ; flowering in June and July. The most 

 southern locality is Julian, San Diego Co., Palmer. A broader leaved form (leaflets 2 to 8 lines 

 wide) is the var. latifolium of Gray, Proc. Am. Acad. vii. 344. 



2. C. Kelloggii, Gray. Eoot tuberous and fascicled : stem 2 to 5 feet high : 

 lower leaves ternate or biternate with pinnate divisions and linear segments ; upper 

 leaves becoming linear : involucre and involucels of 1 to 9 linear-subulate leaflets : 

 fruit ovate to oblong, 1^ to 2^ lines long, with prominent stylopodiura and very 

 short styles, the ribs filiform. Proc. Am. Acad. vii. 344. 



Central California, near the coast. A rather stouter plant with larger flowers and fruit. 



10. PIMPINELLA, Linn. 



Calyx-teeth minute or obsolete. Stylopodium cushion-like or conical. Fruit 

 ovate or broader than long, laterally compressed, with a broad commissure ; carpels 

 5-angled, with distant usually slender ribs and several oil-tubes in the intervals. 

 Seed subterete or dorsally compressed, nearly flat on the face, often free from the 

 loose epicarp. Carpophore divided. Mostly smooth perennials ; leaves decom- 

 pound ; umbels nearly naked ; flowers white or yellow. 



