268 PHARMACEUTICAL BOTANY 
shade family; in either case it is said to be persistent. fit falls with 
the corolla and stamens, it is deciduous, and if when the flower 
expands, caducous, as in the calyx of Poppy and May-apple. If 
the calyx falls very early, it is called fugactous. 
SEPALINE NECTARIES AND Spurs.—Occasionally some or all of 
the sepals may become pouched and at length spurred as nectar 
receptacles or as receptacles for other parts that are nectariferous. 
Thus, in the Crucifere or Mustard Family, we occasionally see a 
\\ 
“ 
15 
\\\‘nim of receptacle 
“fleshy receptacle 
{7 
stamens’ 
| 
Fic, 189.—Strawberry (Fragaria chiloensis). Median lengthwise section of flower. 
(After Robbins.) 
slight pouching of the two lateral sepals. These act as nectar 
pouches for the nectar secreted by nectar glands on the knobs or 
girdles surrounding the short lateral stamens. These become 
deep pouches in Lunaria while in others the pouches become 
elongated spurs. Again, in the Larkspurs, the posterior sepal 
forms an elongated spur into which pass the two spurred nectar- 
iferous petals. In Aconitum the same sepal, instead of being 
spurred, forms an enlarged hood-like body called the ga/ea or 
hood which arches over the flower like a helmet; into this pass the 
