Order 12.— FUMARIACE.E. 225 



filiform ; stig. with one or more points. Fr. either an indehiscent nut 1 — 2-seeded, 



or a pod-shaped capsule many-seeded. Sds. shining, ariled. Albumen fleshy. 



Illustrations, 42, 43, 44, 318. 



Genera 15, species 110,— some of them beautiful and delicate, inhabiting thickets in the tera- 

 perite regions of the northern hemisphere. They possess no remarkable action upon the animal 

 economy. 

 Corolla equally 2-spurred or 2-gibbous at base, (a) 

 Corolla unequal, only one of the petals spurred, (b) 



a Petals not united, deciduous. Not climbing Dicrntra. 1 



a Petals united, persistent. Plants climbing Adlumia. 2 



b Fruit pod-shaped, many-seeded Cokydaub. 3 



b Fruit a globular, 1-seeded nut : Fu.ma.kia. 4 



1. DICENTRA, Borkh. Ear-drop. (Gr. dig, doable ; tcev-pov, a 

 spur ; from the character.) Sepals 2, small ; petals, 4, the 2 outer 

 equally spurred or gibbous at base, and distinct; stamens united in 2 

 sets of three each ; pod 2-valved, many-seeded. — If Fls. in racemes on 

 scapes. 



Low herbs (6'). with whita flowers, in simple racemes Nos. 1, 2 



Taller (12'), with purple flowers, in paniculate racemes Nos. 3, 4 



1 D. cueullaria DO. Fig. 42, 43, 318. Dutchman's breeches. Root bulbi- 

 ferous ; rac. 4 — 10-flowered, secund; spurs divergent, elongated, acute, straight. — 

 "Woods, Can. to Ky. A smooth, handsome plant. Rhizome bearing triangular, 

 small, pale red, scale-like tubers, forming a loose bulb under ground. Lvs. radical, 

 multilid, somewhat triternate, smooth, with oblong-linear segments, the petioles 

 rather shorter than the scape. Scape slender 6 — 10' high, Fls. scentless, nod- 

 ding, whitish, at summit yellow. Pedicels short, axillary to a bract, and with 2 

 niiuute bracteoles near the flower. Spurs about as long as the corolla. Apr., 

 May. 



2 D. Canadensis DO. Fig. 44. Squirrel Corn. St. subterranean, tuberiferous, 

 tubers globous, raceme simple, secund, 4 — 6-flowered ; spurs short, rounded, ob' 

 fuse, slightly incurved. — A smooth, pretty plant, common in rocky woods, Can. 

 to Ky. The rhizome bears a number of roundish tubers about the size of peas, 

 and of a bright yellow color. Lvs. radical, subglaucous, biternate, the lfts. deeply 

 pinnatifid, segments linear-oblong, obtuse, 5 — 8" long. Scape 6 — 8' high, bearing 

 a few odd-looking flowers. Cor. white, tinged with purple, fragrant, 5" long. 

 Sta. 3 on each lip. May, Jn. 



3 D. eximia DC. Rhizome scaly ; lvs. numerous ; rac. compound, the branches 

 cymous ; fls. oblong, spurs very short, obtuse, incurved ; stigma 2-horned at apex. 

 — A fine species on rocks, etc., found by Dr. Sartvvell in Yates Co., N. Y., S. to 

 N. Car. Lvs. radical, 10 — 15' high, somewhat triternate, with incisely pinnati- 

 fid, acute segments. Scape 8 — 12' high, with several (4 — 8) cymes, each with 

 6 — 10 purplish, nodding flowers. Cor. 8 — 10" long, \ as broad at base. Bracts 

 purplish, at base of pedicels. Jn., Sept.f (Corydalis formosa Ph.) 



4 D. formosa DC. Rhizome many-leaved ; rac. slightly compound; fls. ovate, in- 

 flated ; spurs short, rounded, saccate ; stig. entire. — Can. to Or. An elegant and 

 showy species in cultivation, about the size of the last, with foliage less incised 

 and lobes rather obtuse. Rac secund, the cymes 2 to 4-tlowered. Fls. bright 

 purple, about 10" long, by 5" or 6" wide, the stigma angular, not cleft as in No. 

 3. May, JLf 



2. ADLUMIA, Raf. Mountain Fringe. (Named for John Adlum, 

 Washington, D. C, a cultivator of the vine.) Sepals 2, minute ; petals 

 4, united into a fungous, monopetalous corolla, persistent, bigibbous at 

 base, 4-lobed at apex ; stamens united in 2 equal sets ; pod 2-valved, 

 many-seeded. — ® A delicate, climbing vine. 



A. cirrhdsa Raf. Rocky hills, Can. to K Car. Stem striate, many feet in 

 length. Lvs. decompound, divided in a pinnate manner, ultimate divisions 3- 

 lobed, smooth, their foot-stalks serving for tendrils. Fls. very numerous, in axil- 

 lary, pendulous, cymous clusters, pale pink. CaL minute. Cor. slightly cordate 



15 



