220 



XIII. FUMARIACE^. 



Dicentra tptctabilii. 



THcentra. 



Dismembered flower. 6, briicU'oles ; 

 s, scpnls ; pf, outer petals ; pi, Inner 

 I vtiils ; */, stamens. 



\ 



ftraloeapnot. 



St-ed cut vertically 



(mag.). 



Ceralofapnos palcetlina. 



Ceratocapnoi. 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. FLOWERS 

 3 , 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- 

 iious, 4, free or connate at the 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). OVAET free ; 

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



