109 



;U. P1MIMN1':LI.A Linn. (;cii. n. 8()().— Glabrous peren- 

 nials, with ternatcly or pinnately compound leaves, involucre and 

 involuccls scanty or none, and white or yellow flowers. 



1. P. integerrima l>enlh. iK: Hook, Gen. PI. i. 8*.)4. Glaucous, 

 1 to 8 feet hi<rh, branching: leaves 2 to 8-ternatcly compound; 

 leaflets lanceolate to ovate, entire: umbels 10 to 20- rayed; rays 2 

 to 8 inches long; pedicels 4 to ♦) lines long: flowers yellow: fruit 

 broadly oblong, 2 lines long: stylopodium small or wanting: oil- 

 tubes mostly 3 in the intervals, 4 on the commissural side: seed- 

 face almost plane. (Fig. 117.) — Zizia integer ri)>ia DC. 



Eoeky hillsides throughout Canada and the Atlantic States, as far west 

 as Minnesota, Missouri, and Arkansas. Fl. May. 



2. P. apiodora Gray, Proc. Am, Acad. vii. 345. .Smooth, 

 rather stout, 2 to 8 feet high: leaves mostly radical, 2 to 8-ternate, 

 the cuneate-ovate leaflets laciniately pinnatifid and toothed, an 

 inch long: urnbels long peduncled, 6 to ir)-rayed; rays 1 to 2 inches 

 long, hispidly puberulent: flowers white or pinkish: fruit (imma- 

 ture) broadly ovate, Ij^ lines long: oil-tubes numerous in the 

 intervals (4 or 5 in the dorsal, (> in the laterals), 8 or more on the 

 commissural side. 



From San Francisco, California, to E- Nevada ( WainoiA- 

 The plant is said to have a strong odor of celery. Mature fruit has 

 iiot yet been collected- 



\'ar. nudicaulis (iray,l. c. \ iii. 885, Small, stem scapiform, 

 almost leafless, scarcely a foot high, 



A high mountain form, Oregon (HaU 20(1). 



P. Saxikra(;a L. var. majou Koch, a European species, has 

 been collected since 1877 by Prof. T. C. Porter and others along 

 rocky shores of the Delaware River, from Delaware Water Gap 

 i^Poggeiiburg^ to Easton, Penn., and along road-sides near the 

 latter plfce; also at Sycamore, Ohio, in 1878 (//. //. Rushy). It 

 has simply pinnate leaves with sharply-toothed leaflets, oblong 

 fruit a line long, with ribs sometimes almost obsolete, convex seed- 

 face, a cushion-like stylopodium, and white flowers, (Fig, 118,) 



85, APIASTR.UM Nutt. in Torr. A: Gray, Fl, i. 648,— 

 \ Qvy slender smooth branching (somewhat dichotomouslv) an- 

 nuals, with llnely dissected leaves having iiliform or linear (some- 



