220 



XIII. FUMAEIACE^. 



Dicentra speclabilis. 



Dicentra. 

 Dismembered flower, b, bracteoles ; 

 s, sepals ; pe, outer petals ; pi, inner 

 petals ; st, stamens. 



Ceratocapnos. 



Seed cut vertically 



(mag.). 



Ceratocapnos pal(SsUna^ 



Ceratocapnos. Fruits of different shapes on the same plant. 



Herbaceous, annual or perennial, usually glaucous plants, with watery juice. 

 Stem sometimes tuberous, rarely sarmentose. Leaves alternate, cut. Tlowees 

 § , irregular, terminal, in a raceme or spike, or sometimes solitary. Sepals 2, antero- 

 posterior, free, petaloid or scale-like, imbricate in bud, caducous. Petals hypogy- 

 nous, 4, free or connate at tbe base, 2-seriate, the 2 outer lateral, alternate with the 

 sepals, differing from the inner and equitant upon them, equal [Hypecoum, Dicentra, 

 Adlumia) or unequal, one being spurred or gibbous, the other flat, 2 inner petals 

 placed crosswise to the outer, oblong-linear, sub-callous, and coherent at the tips, 

 which enclose the anthers and stigmas. Stamens rarely 4, free, with 2-celled anthers 

 (Hypecoum), usually 6, united by their filaments in two bundles opposite to the 

 outer petals, and each composed of 3 anthers, of which the 2 lateral are 

 1-celled, and the median is 2-celled {Fumaria, Sarcocapnos, Corydalis, Adlumia, 

 Dicentra) ; anthers extrorse, dehiscence sometimes lateral {Hypecoum) . Ovakt free ; 

 style simple, sometimes 2-fid {Hypecoum) ; stigma, usually forming two crenulated 



