620 



UMBELLIB^ERAE (PARSLEY FAMILY) 



Perennials of dry f^rouncl. nearly or (luite acaulescent. Petals yellow or white. 

 (Name from Xw/Aa, a b(»rder, referring to the winged fruit.) Pelxedanum of 

 Am. auth., but scarcely of L. 



1. L. orientale Coult. & Rose. Pubescent. 1-2 dm. high ; leaves bipinnate ; 

 petals wliite or pinkish ; fruit nearly round ; dorsal ribs indistinct. (Peuced- 

 anum nudicaule Nutt., in part.) — Gravelly soil, Minn, to la., Kan., and westw. 



2. L. daucif51ium (Nutt.) Coult. & Rose. Leaves finely dissected; petals 

 yellow; fruit oval; dorsal ribs prominent. {Peucedamtm viUosum Nutt., in 

 part.) — Barrens, w. Mo. to Neb. and Tex. 



35. PSEUDOTAENIDIA Mackenzie. 



Calyx-teeth short, thickish. Petals inferentially yellow. Fruit thickish, 

 strongly compressed dorsally, oblong-lanceolate ; carpels obcompressed, with 

 slender dorsal ribs and broad somewhat corky lateral wings. Oil-tubes mostly 

 solitary in the intervals. — Glabrous erect perennial, with 2-3-ternate leaves, 

 entire leaflets and exinvolucrate compound umbels. (Name from xpevSos, false, 

 and Taenidia, to which this recently discovered genus possesses a marked habital 

 resemblance.) 



L P. montana Mackenzie. Slender, erect, 5-8 dm. high; root slightly 



thickened ; petioles broad and clasping ; leaflets elliptical to lance-ovate or 



-oblong, entire, thin ; umbels 6-12-rayed ; involucels none or inconspicuous ; 



fruit 6 mm. long. — Clayey and rocky mountain slopes, Kate's 



Mt., W. Va. {Mackenzie) and Luray Cavern, Va. {Steele). 



36. POLYTAENIA DC. 



Calyx-teeth conspicuous. Fruit obovate to oval, much flat- 

 tened dorsally ; dorsal ribs small or obscure in the depressed back, 

 the lateral with broad thick corky closely contiguous wings form- 

 ing the margin of the fruit ; oil-tubes 12-18 about the seed and 

 many scattered through the thick corky pericarp. — A perennial 

 mostly glabrous herb, with 2-pinnate leaves (upper opposite and 

 3-cleft), the segments cuneate and incised, no involucre, narrow 

 involucels, and bright yellow flowers in May. (Named from 

 TToXv-, many, and raivla, a fillet, alluding to the 

 numerous oil-tubes.) 



1. P. Nuttallii DC. Plant 6-10 dm. high ; 



pedicels and involucels pubescent. — Barrens, Mich, to n. Ala., 



Tex., Okla., la., and Wise. Fig. 837. 



37. PASTINACA L. Parsnip 



Calyx-teeth obsolete. Fruit oval, very much flattened dor- 

 sally ; dorsal ribs filiform, the lateral extended into broad wings, 

 which are strongly nerved toward the outer margin ; oil-tubes 

 small, solitary in the intervals, 2-4 on the commissure ; stylo- 

 podium depressed. — Tall stout glabrous biennial, with pinnately 

 compound leaves, mostly no involucre or involucels, and yellow 

 flowers. (The Latin name, from pastus, food.) 



1. P. SATIVA L. Stem grooved ; leaflets ovate to oblong, 

 cut-toothed. — Waste places, open rich soil, etc. (Nat. from 

 Eu.) Fig. 838. 



837 



P. Nuttallii 

 x3. 



838. P. sativa x8. 



38. LEViSTICUM [Rivinius] Hill. Lovage 



Calyx-teeth obscure. Petals greenish-yellow. Fruit oblong, rounded at each 

 end, .strongly riljbed, the lateral ribs moderately winged ; oil-tubes solitary in 

 the intervals, 2 on the commissure; seed flattish oai the inner face. — Stout 



