67 
Distributed as P. HalUi Watson. Dedicated to Mr. I. C. Martindale, 
to whose collection of UmbelUferoR we are much indebted. 
Var. angustatum C. & R. 1. c. 143. Usually more caules- 
cent and sometimes taller, v/ith more dissected leaves, and wings 
of fruit but half a line wide, making a fruit 2 lines wide. 
Mountain peaks, California, Yosemite (Curran), Mendocino county 
(Kellogg)-, Oregon, Cascade Mts. (Howell)-, Washington Territory (Bran- 
degee 323, Tweedy 28), Mt. Adams (Suksdorf 383), and other mountain 
peaks; Vancouver Island, Mt Arrowsmith, ,5,500 feet altitude (Macoun 10). 
Distributed as P. HalUi. 
27. P. Vaseyi C. & R. Bot. Gazette, xiii. 144. Shortly 
caulescent, 6 to 8 inches high, pubescent: petioles wholly inflated; 
leaves small (1 to 2 inches long), bipinnate, with the small ovate 
segments irregularly 3 to 5-lobed: umbel equally 2 to 5-rayed, 
with involucels of ohovate petiolulate toothed bractlets; rays an 
inch long; pedicels a line or two long; flowers yellow (?): fruit 
broadly oblon^^marginate, glabrous, 6 to 7 lines long, 4 lines 
broad, with wings twice as broad as body, and mostly prominent , 
dorsal and intermediate ribs: oil-tubes solitary in the intervals, 
4 on the commissural side. 
California, San Bernardino Mts., May, 1880 (G. R. Vasey 231), Mesas 
near San Bernardino, April, 1881 (S. B. <£- TV. P- Parish 286, in part), Fol- 
som, May, 1883 (M. K. Curran) 
Distributed by Vasey as P. macrocarpum Nutt , var., and by Parish as 
Cymopterus terebinthinus Torr. & Gray. 
§ 5. Caulescent, puberulent or pubescent (occasionally glabrous), 
from elongated comparatively slender roots: leaves decompound, with nar- 
rowly linear more or less elongated segments (excepting P. Parishii) and 
usually wholly dilated petioles; bractlets of the involucel scarious-mar- 
gined, more or less conspicuous. 
* Fruit-voings nearly as broad as body., thin: oil-tubes large 
and solitary in the intervals : dorsal and intermediate ribs promi- 
nent. 
28. P. utriculatum Nutt. Torr. & Gray, FI. i. 628. Cau- 
lescent or sometimes nearly acaulescent, from cespitose to a foot 
or more high, from a more or less tuberous root, puberulent or 
glabrous: petioles very broadly dilated; leaves ternately or pin- 
nately decompound, with ultimate segments narrowly linear, 
6 lines or less long: umbel unequally 5 to 20-rayed, with involu- 
cels of much dilated mostly obovate often toothed petiolulate 
bractlets; rays 2 inches or less long; pedicels 2 to 5 lines long; 
