Jeffersonia. BERBERIDACE^. 71 



densely flowered naked spike ; the white filaments and small ovary making up the whole 

 flower ; nut-like fruit barely 3 lines long. — Torr. & Gray, Fl. i. 53 ; Brew. & Wats. Bot. 

 Calif, i. 16. Leontice triphijUa, Smith in Rees, Cycl. xx. no. 1. — Woods, Brit. Columbia to 

 northern part of California, near tlie coast ; fl. spring. 



4. VANCOUV:fiRIA, Morr. & Decsne. {CapL George Vancouver, 

 commander of the Discovery in the voj'age to our northwest coast in 1791-95, 

 of which Menzies was surgeon and botanist.) — Ann. Sci. Nat. ser. 2, ii. 351 ; 

 Torr. & Gray, Fl. i. 52; Benth. & Hook. Gen. i. 44; Gray, 1. c. 375; Brew. 

 «fe Wats. 1. c. 15. — Three species of the Pacific Slope. [Revised by B. L. 

 Robinson.] 



# Leaves thin, membranaceous, soon perishing after the maturing of the fruit, their edges 

 flat or nearly so, not indurated. 



v.* hexandra, Morr. & Decsne, 1. c. About a foot high, from slender and lignescent 

 creeping rootstocks, glabrous or sparsely pilose : leaves all or mostly radical, 3-ternate and 

 with slender common and partial petioles : leaflets rounded and cordate or subcordate, 

 mostly angulately 3-l(jbed or repand and margin ol)scurely undulate-crenulate or entire : scape 

 naked, or sometimes one-leaved at base of the simple or branched loose panicle ; pedicels 

 filiform, recurving: flowers white or cream-colored. — Garden, xxx. 2fi3, fig. ? T'. plani- 

 petala, S. Calloni, Malpighia, i. 266. Epimedium hexandrum, Hook. Fl. Bor.-Am. i.30, 1. 13, 

 dissections not very good. — In coniferous woods near the coast, Brit. Columbia (Vancouver 

 Island) to Northern and Central California, first coll. by Menzies ; fl. spring. 



* * Leaves much thicker, somewhat coriaceous, narrowly cartilaginous-margined, often 

 crenulate or crisped at the edges, persisting. 



v.* chrysantha, Greene. Stems rusty villous pubescent, firmer than in the preceding: 

 thickish leaflets sub-3-lobed, glabrous and reticulated above, whitened and pubescent beneath, 

 margins onlj' slightly crisped, revolute in places : inflorescence sub-racemose, 5-18-flowered, 

 covered with dense dark glandular pubescence : flowers a little larger than in the last, golden 

 yeUow : sepals 3 or 4 lines long : ovules 7 or 8. — Bull. Calif. Acad. Sci. i. 66. V. hexandra, 

 var. chri/santha, Greene, Pittonia, ii. 100. V. aiirea, Greene (ubi?) ace. to Rattan, Anal. Key, 

 17. V. hexandra, var. aurea, Rattan, 1. c. ; Wats., ^fide Howell, Cat. PI. Oreg. 1. — Oregon, 

 at Waldo, Rattan, and Coast Mts., Curry Co., T. Howell. A well marked species readily 

 distinguished from the preceding by its thicker foliage and larger more deeply colored 

 corolla, from the following by its very different flowers as well as pubescence. 



v.* parviflora, Greene. Rootstock much-branched : stems numerous in groups : foliage 

 much as in the preceding ; leaflets more or less 3-lobed or suborbicular, more distinctly 

 crenulate-crisped : inflorescence more paniculately branched with flowers commonly much 

 more numerous (2.5 to 35 or more), scarcely half as large : ovules but 2 or 3. — Pittonia, ii. 

 100. V. hexandra, Brew. & Wats. 1. c, in part. — Abundant upon hillsides, Central Cali- 

 fornia, Bigelow, Anderson, Bolander, Greene, &c. 



5. JEFFERS6NIA, Barton. Twin-Leaf. (Tliomas Jefferson, author 

 of Notes on Virginia, originator of the first expedition across the Rocky Moun- 

 tains to the Pacific.) — Trans. Am. Phil. Soc. iii. 342, and jilate ; Michx. F\. 

 i. 236 ; Gray, Gen. 111. i. 85, t. 34. — Single Atlantic- American species, but 

 J. duhia, Plagiorhegma duhium, Maxim. Prim. Fl. Amur. 34, t. 2, of N. E. Asia, 

 is almost certainly another. 



J.* binata, Barton, 1. c.i Glaucescent and glabrous, tufted from short matted rootstocks, 

 producing below innumeralde fil>rous roots, sending up simple one-flowered naked scapes 

 (4 or in fruit 8 to 10 inches high), tliese at length overtopped by the long radical petioles, 

 which bear a pair of sessile semi-cordate (either sinuate-lobulate, repand or entire) veiny 



1 Name altered from /. diphylla, ace. to Dr. Gray's statement in ms. that Barton's name should 

 have been retained, and in accordance with the recently published Index Kewensis. 



