628 UMBELLTFERJE. ■ Peucedanum. 



limate segments of the leaves narrowly linear, short ; involucel 7-9-cleft ; 

 fruit narrowly elliptical (twice as long as broad) ; the winged margin as wide 

 as the disk ; ribs nearly obsolete ; intervals with single vittse ; commissure 

 with 4 vittffi. — Ferula fcsniculacea, Hook. I. c. partly (the Oregon plant). 

 Ferula niacrocarpa, HooJc. Sf Am. hot. Beechey, suppl. p. 348 ? 



Barren hills on the Oregon, Nuttall ! Dr. Scouler .' Douglas. California, 

 Douglas. — Stem 1-3 inches, and the peduncle 8-12 inches long. " Flow- 

 ers white," Nutt. Fruit nearly three-fourths of an inch in length, with a 

 thin pale border. — Differs from P. foeniculaceum chiefly in the fruit, which 

 is much larger and proportionally narrower, and the wings nearly twice as 

 broad. We have described this plant from specimens collected by Mr. Nut- 

 tall. It may not be identical with Ferula macrocarpa. Hook. Sf Am. 



9. P. dasycarpum : nearly stemless, pubescent ; leaves ternately decom- 

 pound ; the ultimate segments oblong-linear, short, rather obtuse ; involucre 

 of 1-2 lanceolate leaflets ; involucels deeply 4-6-parted ; the segments obo- 

 vate-oblong ; fruit nearly orbicular, tomentose-pubescent, about the length of 

 the pedicel ; vittfe single in the dorsal intervals, 2 in the lateral ones ; com- 

 missure with 4 vittffi. 



California, Douglas! — Leaves 2-3 inches long; the lamina about the 

 length of the petiole, the ultimate segments 1-2 lines long, rather crowded. 

 Peduncle of the fructiferous umbel 6-8 inches long, stout. Rays 4-5 princi- 

 pal, and several shorter abortive ones. Involucel (colored?) strongly veined. 

 Fruit one-third of an inch in diameter, when young broadly ovate, but in the 

 mature state nearly as broad as long : the vittae not perceptible externally. 

 A very distinct species, which is not described in Hooker & Arnott's account 

 of Douglas's Califbrnian collection. Our specimens Avere received from the 

 London Horticultural Society, through the kindness of Mr. Bentham. 



10. P. parvifoliwn : somewhat caulescent, glabrous ; lamina of the radi- 

 cal leaves as long as the petiole, the circumscription deltoid, tri]iinnatifid ; the 

 segments ovate, acuminate, incised, spreading ; involucels of about 8 lanceo- 

 late-subulate leaflets ; fruit elliptical-obovate, the wing as broad as the disk ; 

 ribs slightly prominent ; intervals with single vittxe ; commissure with 4 

 vittae. — Ferula parvifolia, Hook. S^- Am. ! hot. Beechey, suj)pl. p. 348. 



California, Douglas ! — Plant about a foot high when in fruit. Stems very 

 short, several from a single root. Lamina of the leaf about li inch long: 

 segments incised, with short acute lobes. Flowers bright yellow. Fruit 

 one-third of an inch long ; the ribs nearly obsolete. 



11. P . carui folium : minutely pubescent, stemless or nearly so; leaves 

 ternately decompound, with long narrowly linear acute segments ; petioles 

 very short, with a large very broad inflated base; involucel 9-12-leaved ; the 

 leaflets distinct, broadly obovate, petiolulate ; fruit broadly elliptical, with 

 scarcely prominent ribs ; the wing about half the breadth of the disk ; vittas 

 very indistinct, apparently 1-2 in the dorsal intervals and 2-3 in the lateral 

 ones. — Ferula caruifolia. Hook. 6f Am. ! hot. Beechey, siq^pl. pi. 348. Peu- 

 cedanum Californicum, Nutt. ! mss. 



California (plains of St. Barbara, Nuttall!), Douglas! — About a span high. 

 Ultimate segments of the leaves nearly half an inch in length and half a line 

 wide. Flowers bright yellow. Fruit one-third of an inch long. Vitta3 mi- 

 nute and empty in Douglas's specimens, so that the fruit is nearly tasteless. 



12. P. utriculatum (Nutt. ! mss.) : glabrous, branching from the base ; 

 leaves ternately decompound ; ultimate segments narrowly linear, loose ; in- 

 volucels about 7-leavcd ; the leaflets distinct nearly to the base, broadly-obo- 

 vate, petiolulate, nearly as long as the umbellet ; fruit obovate-elli'ptical, 

 with a broad winged margin ; intervals with single vittae ; conmiissure with 

 4-6 vittse. 



