140 



FUMARIACEvE. I. DIELYTRA. II. DACTYLICM-NOS. 



FIG. 42. 



VI. SAHCOCA'PNOS. Petals 4, 

 one of which has a spur at the base, 

 (f. 42. h.) Capsule 2-valved, in- 

 dehiscent, 2-seeded, (f. 42. h. i.j.). 



VII. FUMA'RIA. One of the pe- 

 tals gibbous or spurred at the base, 

 (f. 42. k.) Capsule indehiscent, 1- 

 seeded, (f. 42. m. .). 



VIII. DISCOCA'PNOS. One of the 

 petals with an obtuse spur at the 

 base. Capsule indehiscent, 1-seed- 

 ed, flat, girded by a wing in the 

 centre. 



I. DIELYTRA (from oi f , dis, double ; and tXvrpov, elytron, 

 a sheath ; alluding to the two sheath-like spurs at the base of the 

 flower.) Borckh. in Rom. arch. 2. p. 46. D. C. syst. 2. p. 107. 

 prod. 1. p.' 125. 



LIN. SYST. Diadelphia, Hexandria. Petals 4, the 2 exterior 

 ones equally spurred or gibbous at the base (f. 42. o.). Stamens 

 6, altogether free (f. 42. p.), or approximating into two bundles, 

 or joined at the top (f. 42. g.), and free at the base, (f. 42. p.). 

 Capsules 2-valved, many-seeded. Perennial herbs with tuberous, 

 horizontal, or fibrous roots. Leaves stalked, multifid, usually all 

 radical, seldom cauline. Flowers racemose, white or purple. 



1 D. CUCULLA'RIA (B.C. syst. 2. p. 108.) spurs 2, straight, 

 acute ; scape naked ; raceme simple. % . H. Native of North Ame- 

 rica, in rich mould among rocks on the sides of hills, from Canada 

 to Virginia ; also in the Alleghany mountains, and common on the 

 subalpine regions of the Blue mountains, in open woody places. 

 Fumaria cucullaria, Lin. spec. 983. Sims, bot. mag. t. 1127. 

 Corydalis cucullaria, Pers. ench. 2. p. 269. Cucullaria bul- 

 bosa, Raf. in Desv. journ. bot. 1809. 2. p. 159. Root tuberous, 

 of a very bitter taste. Flowers unilateral, white, but yellow at 

 the tip. 1'his plant is aptly called in America Dutchman's 

 Breeches, alluding to the two horns at the base of the flower. 



Var. ft; divaricata (D. C. syst. 1. c.) spurs divaricate. Fu- 

 maria cucullaria, Mill. diet. no. 9. Perhaps a proper species. 

 This is the D. cucullaria of Hook, fl. bor. amer. 35. 



tfoorferf-spurred Dielytra. Fl. May, July. Clt. 1731. PI. 

 | foot. 



2 D. BRACTEOSA (D. C. syst. 2. p. 109.) spurs 2, straight, 

 acute ; stem leafy ; bracteas cut. I/ . H. Native of North 

 America? Corydalis bracteosa, Spreng. syst. 3. p. 162. Very 

 like D. cucullaria, but differing in its smaller stature, and the 

 lobes of the leaves being fewer, broader, and a little shorter, as 

 well as in the bracteas being cut. Root tuberous. Flowers 

 white, tipped with yellow. 



Bracleate Dielytra. Fl. May, July. Cult. 1823. PI. | foot. 



3 D. FORMOSA (D. C. syst. 2. p. 109.) spurs 2, short, some- 

 what incurved, blunt ; scape naked ; racemes rather compound ; 

 stigma 2-angled. I/ . H. Native of North America, on the cliffs 

 of shady rocks, on the tops of the mountains in Virginia, Carolina, 

 and Canada ; also at Nootka Sound. Fumaria formosa, Andr. 

 bot. rep. 393. Sims, bot. mag. 1335. Corydalis formosa, 

 Pursh fl. amer. sept. 2. p. 462. Coryd. biaurita, Horn. hort. 

 hafn. 2. p. 668 ? Roots horizontal. Flowers bright-red. 



Beautiful Dielytra. Fl. May, Jul. Cult. 1796. 



4 D. EXI'MIA (D. C. syst. 2. p. 109.) spurs 2, somewhat in- 

 curved, blunt, short ; scape naked ; racemes compound ; stigma 

 4-angled. ^.H. Native of North America, at Nootka Sound. 

 Fumaria eximia, Ker. in bot. reg. 1. t. 50. Corydalis eximia, 

 Spreng. syst. 3. p. 162. An elegant plant, very like D. formosa, 



PI. | foot. 



but larger in all its parts, of a paler green colour. Root hori- 

 zontal. Flowers rose-coloured. 



Choke Dielytra. Fl. May, July. Clt. 1812. PI. foot. 



5 D. SPECTA'BILIS (D. C. syst. 2. p. 110.) spurs 2, very blunt, 

 ventricose, short ; stem leafy ; segments of leaves obovate-cune- 

 ate, cut. I/ . H. Native of Siberia, on the frontiers of China, 

 and in the north of China. Fumaria spectabilis, Lin. amcen. 7. 

 p. 457. t. 7. spec. 953. Capnorchis spectabilis, Bb'rck. in Rom. 

 arch. 1. p. 2. p. 46. Corydalis spectabilis, Pers. ench. 2. p. 269. 

 A plant with large showy purple flowers, each nearly an inch 

 long. 



Remarkable Dielytra. Fl. May, July. Clt. 1816. PI. f ft. 



6 D. TENUIFOLIA (D. C. syst. 2. p. 110.) spurs 2, very short 

 and very blunt; scape naked, 1-3-flowered; pedicels shorter than 

 the calyx ; leaves multifid; lobules linear. "%.. H. Native of 

 Kamtschatka. Deless. icon. sel. 2. t. 9. f. B. Corydalis tenui- 

 folia, Pursh. fl. amer. sept. 2. p. 462. Root tuberous. Flowers 

 large in proportion to the plant, pale red, tipped with a more in- 

 tense colour. 



Fine-leaved Dielytra. Fl. ? May, July. Clt. 1824. PI. i foot. 



7 D. CANADE'NSIS (D. C. prod. 1. p. 126.) spurs 2, short, 

 blunt ; scape naked, simple, few-flowered; pedicels short ; leaves 

 multifid ; lobes linear ; stigma stretched out, 4-lobed. I/ . H. 

 Native of Canada, about Montreal. Corydalis Canadensis, Gold 

 in edin. phil. journ. 1822. p. 330. D. eximia, B. Hook, fl. bor. 

 amer. 35. Leaves glaucous. Herb 6-8 inches long. Flowers 

 white. Root horizontal. 



Canadian Dielytra. Fl. May, July. Clt. 1822. PI. | foot. 



8 D. LACHENALI^EFLORA (D. C. syst. 2. p. 111.) spurs 2, very 

 short and very blunt ; scape naked, 2-4-flowered ; pedicels longer 

 than the calyx ; leaves multifid ; lobes linear, very acute. 1 . H. 

 Native of Siberia, beyond the Baikal, and about Ochotskoi, as 

 well as in the islands of the extreme north-west coast of Ame- 

 rica, and at Behring's Straits. Corydalis Lachenaliaeflora, Fisch. 

 in litt. Rud. in mem. sci. petersb. 1. t. 19. Fumaria tenuifblia, 

 Led. mem. acad. petersb. 5. p. 515. no. 37. Fumaria cucul- 

 laria, Pall. Flowers fine red, very like those of D. tenuifolia, but 

 smaller. Roots horizontal. 



Lachenalia-fiowereil Dielytra. Fl.May,Jul. Clt. 1824.P1. Jft. 



9 D. SCA'NDENS (D. Don, prod, fl.nep. p. 198.) spurs 2, very 

 blunt ; racemes simple, corymbose, opposite the leaves ; leaves 

 bipinnate ; leaflets oval-oblong, mucronulated, smooth, glaucous 

 beneath, lower ones 2-3-parted ; petioles of the primary leaves 

 profoundly 2-parted, the rest cirrhiferous branches. Q- H. 

 Native of Nipaul. Stem climbing. Perhaps this is Daclylicap- 

 nos thalictrifolia. 



Climbing Dielytra. PI. cl. 



Cult. A pretty genus of perennial herbaceous plants. They 

 thrive best in a light rich soil, and are easily increased by divid- 

 ing the plants at the roots or by seeds. The D. scdndens being 

 an annual plant, will only require to be sown in the open border, 

 or to be raised on a hot-bed, and afterwards planted out. 



II. DACTYLICA'PNOS (from laK T v\og, dactylos, a finger; 

 KCUTVOC, kapnos, fumitory, probably in allusion to the divided 

 tendrils.) Wall. tent. fl. nap. p. 51. t. 39. 



LIN. SYST. Diadelphia, Hexandria. Petals 4, cruciate (f. 

 43. a.) deciduous ; the 2 exterior ones sessile, .equally gibbous 

 at the base (f. 43. 4.), the 2 inner ones are on long claws (f. 

 43. c.). Stamens 5-6, collected into 2 bodies. Stigma 4-lobed 

 (f. 43./.). Berries cylindrical, oblong (f. 43. g.\ many-seeded 

 (f. 43. h.). A smooth scandent glaucous herb, with the stem 

 and branches filiform and twisted. Petioles ending in branched 

 tendrils. Leaves triternate. Racemes axillary or opposite the 

 leaves, on long peduncles. Flowers about 20, large, oblong, 

 flattish, nodding, yellow with a rufescent mouth, fragrant, dilated 



