UMBELLIFERJE, (PARSLEV FAMILY.) 11;3 



Var. Hookeri, Torr. & Gray, Rhachis narrow : fruit scabrous. — Loc. cit. 

 A/, track /sjxriitii/ii, Nutt. From the Saskatcliewau to the Upper Missouri, the 

 Platte, and S. W. Montana. 



2. M. tenuifolium, Nutt. Acaulesccut, erect and sonwultat cespitose, oj 

 glaucous hue: leaves trlpinnately divided ; segments linear: floicers uhitr : fruit 

 nearlj glabrous ; oil-tubes with a more aromatic oil tlian iu the former species. 

 — Log. cit. " Rocky Mountains," Nutlall. 



3. OROGENIA, Watson. 



Calyx-teeth minute. Commissure with 2 to 4 oil-tubes : carpophore adnate 

 to the carpels and forming a thick corky midrib dividing tiie hollowed face 

 of the commissure longitudinally. — Dwarf, scarcely caulescent, glabrous : 

 root tuberous : leaves radical, 1 to 2-ternate, with entire linear segments : 

 umbel witli few very short unequal rays. 



1. O. linearifolia, Watson. Stem an inch or two above ground and 

 very slender : leaves 2 or 3, upon filiform petioles, equalling the stem : umltels 

 with 2 or 3 rays; umbellets 3 to 5-flowered : involucre none; involucels <»f 

 1 to 3 linear leaflets exceeding the rays. — Bot. King's Exp. 120, pi. 14. 

 Wasatch Mountains, on damp shaded ridges. 



4. CARUM, L. 



Calyx-teeth small. Stylopodium conical. — Smooth, erect, slender biennial 

 herbs or acaulescent, with tuberous or fusiform fascicled roots : leaves mostly 

 simply pinnate Avith a few leaflets. 



1. C. Gairdneri, Benth. & Hook. Stem 1 to 4 feet high, from a tuberous 

 root: leaves few, ivilh 3 to 7 linear entire leaflets; the lower leaves rarely j (in- 

 nate with entire or toothed divisions ; upper leaves usually simple : involucre 

 of a single linear I eafet, or often wanting; invoJurels of several linear brad a: 

 foivers lohite. — From Washington tlirough Idaho to Wyoming, and thence 

 to S. California. A common article of food among tiie Indians, who call it 

 "yamp." 



2. C. (?) Hallii, Watson. Acaulescent from a stout caudex branching at 

 the summit : leaves pinnate or pinnatisect ; leaflets or segments oblong or suit- 

 ovate in outline, pinnatebj 3 to 7-lobed and few toothed: scape verg simple, naked, 

 surpassing the leaves, 10 inches high: involucel deeplg parted : Jlowers gel- 

 low. — Bibl. Index, i. 416. Seseli Hallii, Gray. Musenium Creenei, Gray. 

 Colorado. 



5. BERULA, Koch. 



Calyx-teeth minute. Stylopodium conical and styles short. Commissure 

 broad. Seed terete — A smooth j)erennial ac^uatic : leaves niunatc : involucre 

 and involucels of several leaflets. 



1. B. angUStifolia, Koch. Erect, ^ to 3 feet high, the stem stout and 

 angled : leaflets about i)airs, ovate-oblong to linear, often laciuiately lobed at 

 base, and the upper ones especially more or less deeply cut-toothed : involucre 

 and involucels of 6 to 8 entire linear-lanceolate leaflets. — Slum angustifo'ium, 

 L From Colorado northward, and eastward across the continent ; also in 

 California. 



