FUMARIACE.E. 119 



Plate 50. 

 DICENTRA, Borkh. 



Corolla aequaliter 2-calcarata vel 2-saccata, saepius decidua ; 

 petalis distinctis. Capsula siliquosa ; seminibus cristatis. 



Dicentra, Borkh. in Rom. Arch. 2. p. 40 (err. typogr. Dichjtra). Bernh. 



in Linnsea, 8. p. 468. Meisn. Gen. p. 10. Endl. Gen. 4836. 

 Diclytba, DC. Syst. 2. p. 107, & Prodr. 1. p. 125. 

 Dielytra, Hook. Fl. Bor.-Am. 1. p. 35. Torr. &. Gray, Fl. 1. p. 66. 

 Fumarls Sp., Linn. Andr. Bot. Rep. t. 395. Michx. Fl. 2. p. 51. 

 Corydalis Sp., Neck. Pers. Nutt. Gen. 2. p. 85. 

 Cdcullaria, Raf. in Med. Rep. 2. p. 350, & Desv. Jour. Bot. 2. p. 159. 

 Perizomanthus, Pursh. Fl. 2. p. 462 (sub Corydali), excl. spec. 



Brceclies-Flower. Squirrel-corn. 



Calyx of 2 very small petaloid or scarious sepals, resem- 

 bling bractlets, never inclosing the flower-bud. Corolla 

 cordate, or two-spurred at the base, compressed, hypogynous, 

 of 4 connivent but distinct petals in two series ; the two 

 exterior larger, alternate with the sepals, similar, saccate or 

 calcarate at the base, appressed, inclosing the inner pair ex- 

 cept their midribs and apex, contracted above, and with short 

 and spreading hooded tips : the two interior opposite the 

 sepals, unguiculate, spoon-shaped or excavate-hooded at the 

 apex, where the two lightly but permanently cohere over the 

 anthers and stigma, their prominent midrib dilated at the sum- 

 mit to form a salient crest : all deciduous, or else scarious-per- 

 sistent around the base of the pod. Stamens 6, in two sets 

 of three each, one set opposite each outer petal and lightly 

 cohering with its insertion and with a linear (or sometimes 

 nearly obsolete) gland that descends into the spur or sac : 

 filaments subulate-filiform, distinct, or the three slightly 

 united, especially about the middle : anthers more or less 

 extrorse, fixed by the base, that of the middle stamen two- 

 celled, those of the lateral one-celled ; the cells opening lon- 

 gitudinally. Ovary one-celled, with two parietal placentas 



