636 UMBELLIFERAE 



Flowers whito or pale yellow. 



Oil-tubes minute, 3 or more in the intervals; fruit ovate 



13. L. nevadense. 

 Oil-tubes broad, 1 to 3 in the intervals; fruit oblong or oblong- 

 ovate 14. L. plu mmerae. 



Flowers purple; fruit elliptic; oil-tubes broad, 1 or 2 in the intervals.. 



15. L. uustinae. 

 Braotlcts none (rarely 1 or 2) ; fruit wings somewhat narrower than the body; petioles 

 dilated into narrow sheaths their whole length; s. Sierra Nevada. 

 Leaves ternate-pinnate; flowers yellow; pedicels 1 to 2 lines long; oil-tubes solitary, 



16. L. torreyi. 

 Leaves quinate-pinnate ; flowers whitish; pedicels 3 to 4 lines long; oil -tubes in- 

 distinct 17. L. congdonii. 



Leaves pinnate, linear-lanceolate in outline; desert ranges. — Subgenus Cynomarathrum.. 



18. L. parryi. 



Leaves with the divisions mostly fev? or at least not numerous, the leaflets narrow and much 



elongated. — Subgenus Lonchophtllum. 



Leaflets or segments many, % to ^/^ line broad; n. Sierra Nevada foothills; oil-tubes very 



minute, sometimes forming (in cross-section) a continuous chain on the dorsal side. 



19. L. marginatum. 



Leaflets few, % to 1^ lines broad; oil-tubes very broad, solitary in the intervals; higher 



n. Sierra Nevada and n. Coast Ranges 20. L. tritematum. 



B. Peduncles enlarged at summit. 

 Leaves with few divisions and broad leaflets; fruits very narrowly winged; bractlets none; 



flowers yellow; n. Cal. — Subgenus Crassipedunculatum 21. L. nudicaule. 



II. Stems from a globose tuber; leaflets elongated; bractlets present; oil-tubes 



solitary in the intervals. — Subgenus Cous. 



Flowers yellow; fruit linear, the wings V^ to % as wide as the body; Modoc Co. ..22. L. amhiguum. 



Flowers white ; fruit elliptic, the wings ^^ as wide as body ; Sierra Co. to Siskiyou Co 



23. L. piper i. 



1. L. lucidum Jepson. Saints Parsnip. Plants lA to II/2 feet high, glabrous, 

 the stout peduncles from very short basal stems ; leaves with 3 leaflets or the 

 lowest ones temate, each division with 3 leaflets; leaflets roundish to ovate, mucro- 

 nate-toothed, not lobed or often 3-lobed or -parted, % to 1% inches long; rays 10 

 to 15, 1 to 3 inches long; pedicels 3 to 6 lines long; involucels of lanceolate bract- 

 lets; flowers yellow; fruit nearly orbicular, emarginate at each end, glabrous, 4I/2 

 to 7I/2 lines long, with wings more than twice as broad as the narrowly oblong body, 

 and prominent obtuse dorsal and intermediate ribs; oil-tubes solitary in the inter- 

 vals, 2 to 4 on the commissure. 



Open rocky ridges or chaparral burns, 1000 to 5000 feet : coastal Southern 

 California from Los Angeles Co. to San Diego Co. Mar.-Apr., fr. May -June. 



Locs. — San Gabriel foothills, Hasse; Pasadena, McClatcJiie ; betw. Monrovia Canon and 

 Fish Canon, San Gabriel Mts., Peirson 801; Lytle Creek, San Antonio Mts., Hall 1429; San Ber- 

 nardino, Parish 3627; Aguanga, Riverside Co., Jepson 1484; Palomar, Jepson 1535; Del Mar, 

 Jepson 1615. 



Var. repostum Jepson. Leaves ternate, each division with 3 leaflets, or the central division 

 with 9 ; leaflets Va to % inch long, finely toothed ; body of carpel elliptic, the intervals often with 

 secondary oil-tubes extending half the length. — Vaca Mts.; Cobb Mt., If. S. BaTcer 2287a. 



Eefs. — LoMATiUM LUCIDUM Jcpson, Madrono 1:149, fig. 31 (1924), Man, 720, fig. 704 

 (1925). Euryptera lucida Nutt. ; T. & G. Fl, 1:629 (1840), type loc. San Diego, Nuttall; Torr, 

 Bot. Mex. Bound. 70, pi. 27 (1859) ; C. & R. Contrib. U. S. Nat, Herb. 7:241, fig. 61 (1900). 

 Peucedanum euryptera Gray, Proc. Am. Acad. 7:348 (1868). Cogswellia lucida Jones, Contrib. 

 W. Bot. 12:31 (1908). Peucedanum hassei C. & E. Bot. Gaz. 14:276 (1889), type loc. San 

 Gabriel Mts., Los Angeles Co., Hasse. Euryptera hassei C. & R. Contrib. U. S. Nat. Herb. 7:242 

 (1900). Var. repostum Jepson, Madrono 1:149 (1924), type loc. Collins Spr,, Vaca Mts., Jepson 

 14,309; Man. 720 (1925), Peucedanum hassei Jepson, Erythea 1:10 (1893), Fl. "W. Mid. Cal. 

 358 (1901), ed. 2, 302 (1911). 



Peucedanum insulare Eastw, Proc, Cal. Acad. ser. 3, 1:106, pi. 8 (1898), type loc. San 

 Nicolas Isl., Blanche TrasTc. Euryptera insularis C. & R. Contrib. U. S. Nat. Herb. 7:243 (1900) ; 

 peduncles dilated at summit; involucre of a single elongated bract palmately divided at apex; 

 involucels composed of several linear bractlets; oil-tubes usually 2 in the intervals, 6 on the 

 commissure (ex char.). 



