-250 UMBELLIFER^. pastinaca. 



COL PTEEA. 



7 PASTINACA Tourn. L. Gen. n. 362. 



Calyx-lobes obsolete. Fruit oval, very much flattened, glab- 

 rous. Carpel with broad lateral wings continuous to those of the 

 -opposite carpel, and strongly nerved towards the outer margin. 

 . Stylopodium depressed but prominent. Oil-tubes small, solitary 

 in the intervals, 2-4 on the commissure. Seed very much flat- 

 tened dorsally. Tall stout biennial herbs with pinnately com- 

 pound leaves and yellow flowers. 



P. SATiTA L the common parsnip is introduced almost everywhere. 

 The leaflets are ovate to oblong and eut-tpothed. 



8 COLOPTEEA C. & E. Rev. Umbelif. 49. 



Dwarf sandy ground plants with small leaves, no involucre 

 involucels of foliaceous more or less united bractlets and 'yellow 

 flowers. Calyx-lobes obsolete or evident. Fruit ovate, glabrous. 

 Carpel with dorsal and intermediate ribs filiform or winged and 

 approximate ; lateral wings broad very thick and corky, coherent 

 till maturity with those of the other carpel forming a broad 

 corky margin to the fruit usually thicker than the fruit proper. 

 Oil-tubes very small, 4-8 in the intervals, 8-14 on the commis- 

 sure. Seed very flat with plane or slightly concave face. 



C. Parryi C. & R. 1. c 50. Acaulescent, 2-6 inches high: leaves 

 small, ovate in outline, bipmnate with very small oblong segments: in- 

 volucels of slightly united bractlets: fruit with prominent corky 

 and undulate dorsal and intermediate wings. N. W. Wyoming, to be 

 looked for in Idaho. 



9 LEPTOTtENIA Nutt. T. & G. Fl. i, 629. 



Stout glabrous short-caulescent perennial herbs with thick 

 •often very large fusiform roots, usually pinnately decompound 

 leaves, involucre of few bracts or none, involucels, of numerous 

 ■small bractlets and yellow or purple flowers. Calyx-lobes obso- 

 lete or evident. Fruit oblong-elliptical, glabrous. Carpel 

 with dorsal and intermediate ribs filiform or obscure and ap- 

 proximate ; lateral wings broad very thick and corky, coherent 

 until maturity with those of the other carpel, commissural face 

 with a prominent central longitudinal ridge left after separation 

 from the carpophore. Oil-tubes 3-6 in the intervals 4-6 on the 

 •commissure, mostly small, sometimes obsolete. Seed very flat, 

 with plane or slightly concave face. 



* Oil-tubes obsolete or very obscure. 



L. dissecta Nutt. 1. c. 630. Ferula dissoluta Watson Bot. Cal. i, S71. 

 rStems stout, 1-3 feet high, leafy at base : leaves broad, a foot or so long, 

 ternate and thrice pinnate : segments ovate or oblong 6-12 lines long pin- 

 natifldly laciniate-lobed and toothed, puberulent on the veins and margins; 

 umbel 8-20 rayed, with an involucre of few linear bracts, involucels of 

 several linear bractlets ; rays 2-5 inches long : flowers yellow or purplish: 

 -fruit sessile or nearly so 5-9 lines long, about 3 lines broad : seed-face 

 j>lane. Brit. Columlaa to CaMfomia. 



