250 UMBELLIFER#. PASTINACA. 
COL PTERA. 
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. sativa L the common parsnip is introduced almost everywhere. 
*The leaflets are ovate to oblong and cut-toothed. 
8 COLOPTERA C. & R. Rev. Umbelif. 49. 
Dwarf sandy ground plants with small leaves, no invyolucre 
-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, bipinnate 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 LEPTOTANIA Nutt. T. & G. Fl. i, 629. 
Stout glabrous short-caulescent perennial herbs with thick 
often very large fusiform roots, usually pinnately decompound 
‘Jeaves, 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 dorzal 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 
-frony 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. 
* Ojil-tubes obsolete or very obscure. 
L. dissecta Nutt. 1. c 630. Ferula dissoluta Watson Bot Cal. i, 271. 
-Stems 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- 
natifidly laciniate-lobed and toothed, puberulent on the veins and margins; 
-umbel 8-20 rayed, with an involucre of few linear bracts, involucels of. 
-geveral 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 
plane. Brit. Columbia to California. 
