24 FUMARIACE^E. Dicentra. 



or decompound leaves, wholly glabrous, and racemose or paniculate flowers ; the 



corolla often withering-persistent. 



A genus of about a dozen species, divided between North America and Eastern Asia with the 

 Himalayas ; one large and showy species from Northern China, D. spectabilis, now common in 

 gardens. 



§ 1. Flowers on a scape : filaments lightly united: seeds sinning, with a loose carun- 

 cle or crest at the hilum. 



1. D. formosa, DC. Leaves and scapes from the apex of thickish and almost 

 naked creeping rootstocks, a span to a foot or two in height; the former twice, or 

 thrice ternately compound ; the ultimate divisions narrow and incisely pinnatifid : 

 flowers compound-racemose at the summit of the naked scape : corolla rose-colored, 

 ovate-cordate, with short spreading tips to the larger petals. — Fumaria formosa, 

 Andr. Bot. Eep. vi. t. 393. 



In the Sierra Nevada at 3,000 to 9,000 feet, and through Oregon to Fraser River. A graceful 

 plant ; the scapes rather later than the leaves. Base of the corolla sometimes deeply, sometimes 

 slightly cordate. Nearly related to D. eximia of the Alleghanies. 



2. D. unifloia, Kellogg. Leaves and scape from a fasciculate fleshy root sur- 

 mounted by a bulb-like cluster of fleshy grains, 3 to 5 inches high : the blade of 

 the former ternately or somewhat pirinately divided, broadly or narrowly ovate in 

 outline, glaucous ; the 3 to 7 divisions pinnatifid into a few linear-oblong or spatu- 

 late lobes : scajje 2 - 3-bracted, 1 -flowered : corolla flesh-colored, narrowly oblong- 

 cordate ; the two outer petals tapering above, at length recurved-spreading. — Proc. 

 Calif. Acad. iv. 141 ; Porter in Hayden Eep. 1872, 760. 



Sierra Nevada in the alpine region, near Cisco and northward, Kellogg, Lemmon. Also in the 

 Wahsatch Mountains above Ogden and northward, Chadbourne, Coulter, &c. 



D. Cttcullaria, DC, of Eastern North America, occurs in the woods of Oregon, and may 

 extend to the borders of California. It is distinguished by its simple or nearly simple raceme of 

 cream-colored flowers, with the sacs of the outer petals extended into divergent spurs. 



§ 2. Floioers long and, narrow, compound-racemose or panicled on a leafy stem : 

 filaments diadelphous nearly to the top : seeds dull, crestless. — Chrysocapxos, 

 Torr. 



3. D. chrysantha, Hook. & Am. Pale and glaucous, 2 to 4 feet high : leaves 

 twice pinnate, the larger a foot long or more ; the divisions cleft into a few narrow 

 lobes : racemose panicle terminal, a foot or two long : sepals caducous : corolla 

 linear-oblong or clavate, bright golden-yellow, over half an inch long, the base 

 slightly cordate : capsule oblong-ovate or narrower. — Bot. Beechey, 320. t. 73 ; 

 Torr. Bot. Mex. Bound, 32. Capnorchis chrysantha, Planchon, Fl. Serr. viii. 193, 

 t. 820. 



On arid hills, &c, from Lake Co. to San Diego. Plant of stiff and rather coarse habit, but the 

 flowers brilliant. 



2. CORYDALIS, Vent. 



Corolla one-spurred at the base on the upper side, deciduous. Otherwise mainly 

 as in Dicentra. 



A rather large genus, of wide geographical distribution, most abundant in the Old World, only 

 a single and a rare species known in California. Two others are not unlikely to occur on the north- 

 ern border, viz. 



C. attrea, Willi, var. occidentals (otherwise called O. montana), Engelm., a low biennial 

 species with golden yellow blossoms. 



C. Scouleri, Hook. Fl. t. 14. of the woods of Oregon, a thick-rooted perennial, with one 

 or two large 3 or 4 times pinnate leaves on the stem, and loose spreading racemes of long-spurred 

 rose-colored flowers, — to which the following is somewhat related. 



1. C. Caseana, Gray. Perennial, pale and slightly glaucous, branching, 2 or 3 

 feet high : leaves twice or thrice pinnate ; leaflets obovate or oblong, nearly sessile 



