- ~*~ Te . > rs ia. ee ” ~~. - n't 
cee YY Y : A XY - ~ Mo gl aes ate eR 
flower are attached | | : 
to its upper part, and Fic. 209.—Longitudinal section through the flower 
A, 
The External Form of Plants.’ . LE Re 
superior or free, as in Ranunculus (Fig. 209) or Rhamnus 
(Fig. 208), when the remaining parts of the flower are 
attached to or below | 
its base, and are con- 
versely inferior or Zy- 
pogynous. The ovary 
on the other hand is 
inferior when the 
other parts of the 
are therefore supe- of Ranunculus acris, showing the hypogynous 
3 calyx, corolla, and stamens. 
rior, adherent, or ¢fz- 
gynous, as in Mesembryanthemum (Fig. 210). The ovary, 
finally, is half-enferior when the other parts of the flower 
are coherent at their base, and thus form a tube which sur- 
Fic. 210.—Longitudinal section through the flower of Mesembryanthemum faici- 
Jorme, showing the epigynous calyx, corolla, and stamens. © 
rounds the free pistil, as in the rose ; the calyx, corolla, and 
stamens then having a half-superior or perzgynous } insertion. 
* [Practically the term Zerigynous is used in English descriptive bo- | 
tany with reference to the stamens to express their union to the calyx ; 
when attached to the corolla they are epifetalous ; epigynous when 
attached to the upper part of the ovary. An ‘inferior’ ovary is always 
the result of the adhesion to the wall of the ovary of a part or the whole 
I2 
