158 XII. FUMARIACEJS. CORYDALIS. 



Conspectus of the Genera. 



$ Fruit a pod-shaped capsule. . . Corydalis. 3 



$ only 1 of the outer, sace. or spurred. (Fruit a subglobose nut. . . . Fumaria. 4 



distinct, ( 2 outer equally saccate or spurred Dielytra. 1 



Petals ( united, base bigibbous, apex 4-lobed. Climbing herbs. Adlumia. 2 



1. DIELYTRA. Borkhausen. 



Gr. Sis, double ; e\vrpov, wing-case ; in allusion to the two spurs. 



Sepals 2, small ; petals 4, the 2 outer equally spurred or gibbous 

 at the base ; stamens united in 2 sets of 3 in each j pod 2-valved, 

 many-seeded. %. 



1. D. CUCTJLLARIA. DC. (Corydalis Cucullaria. Pm.) Dutchman's 

 Breeches. 



Rt. bulbiferous ; rac. 4 10-flowered, secund ; spurs divergent, elongated, 

 acute, straight. Woods, Can. to Ky. A smooth, handsome plant. Rhizoma 

 bearing triangular, small, pale-red bulbs under ground. Leaves radical, mul- 

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

 rather shorter than the scape. Scape slender, 6 10' high. Flowers scentless, 

 nodding, whitish, at summit yellow. Pedicels short, axillary to a bract, and 

 with 2 minute bracteoles near the flower. Spurs about as long as the corolla. 

 April, May. 



2. D. CANADENSIS. DC. (D. eximia. Beck. Corydalis Canadensis. 

 Goldie.} Squirrel Corn. Dutchman's Breeches. 



St. subterranean, tuberiferous ; tubers globose ; rac. simple, secund, 4 6- 

 flowered ; spurs short, rounded, obtuse, slightly incurved. A smooth, pretty 

 plant, common in rocky woods, Can. to Ky. The rhizoma bears a number of 

 roundish tubers about the size of peas, and of a bright-yellow color. Leaves 

 radical, subglaucous, biternatc, the leaflets deeply pinnatifid, segments linear- 

 oblong, obtuse, 5 8" long. Scape 6 8' high, bearing a few odd-looking 

 flowers. Corolla white, tipped with yellow, 5" long. Calyx minute. Sta- 

 mens 3 on each lip. May, Jn. 



3. D. EXIMIA. DC. (Corydalis formosa. Ph.} Choice Dielytra. 

 Rhizoma scaly-bulbiferous ; Ivs. numerous; rac. compound, the branches 



cymose ; spurs very short, obtuse, incurved ; stigma 2-horned at apex. A fine 

 species, on rocks, &c., found by Dr. Sartwcll, in Yates Co., N. Y. (S. to N. 

 Car.} Leaves radical, 10 15' high, somewhat triternate, with incisely pin- 

 natifid segments, but quite variable. Scape 8 12' high, with several (4 8) 

 cymes, each with 6 10 purplish, nodding flowers. Corolla 8 10" long, oroad 

 at base. Bracts purplish, at base of pedicels. Jn. Sept. f 



2. ADLUMIA. Raf. 



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. (D Climbing. 



A CIRRHOSA. Raf. (Fumaria fungosa. Willd. Corydalis. Pers.) Moun- 

 tain Fringe. 



A delicate climbing vine, native of rocky hills, Can. to N. Car. Stem stri- 

 ate, many feet in length. Leaves decompound, divided in a pinnate manner, 

 ultimate divisions 3-lobed, smooth, their foot-stalks serving for tendrils. 

 Flowers very numerous, in axillary, pendulous, cymose clusters, pale-pink. 

 Calyx minute. Corolla slightly cordate at base, of 4 petals united into a 

 spongy mass, cylindric, compressed, tapering upwards, 2-lipped. Fine for 

 arbors. Jn. Aug.j- 



3. CORYDALIS. DC. 



Greek name of the Fumitory, from which genus this was taken. 



Sepals 2, small ; petals 4, one of which is spurred at the base ; 



