314 PHARMACEUTICAL BOTANY 
When such an integument arises from the dilatation of the 
micropyle of the seed, as in the Nutmeg, it is known as an 
ARILLODE. : 
The KERNEL consists of all the seed substance within the seed 
coats. ALBUMEN is the name of the nutritive matter stored in the 
seed. The Funicutus or seed stalk is absent in most of the 
official seeds. The scar left by its separation is called the Hitu. 
When the funiculus is continued along the outer seed coat, it is 
called the RAPHE. 
MopbeE oF ForRMATION OF DIFFERENT TYPES OF ALBUMEN 
If the fertilized egg-cell within the embryo sac segments and 
grows into the embryo and, stretching, fills up the cavity without 
food material laid down around it, it happens that the nutritive 
material lingers in the cells of the nucellus, pressing around the 
embryo. This nutritive material is called Perispermic albumen. 
The tissue of the seed containing it is called the PerisPERM and 
represents the ripened nucellus of the ovule. Seen in the Poly- 
gonacee or Buckwheat family, etc. 
In by far the greater number of Angiosperms, the endosperm 
nucleus, divides and redivides, giving rise to numerous nuclei 
imbedded in the protoplasm of the embryo sac, outside of the 
developing embryo. Gathering protoplasm about themselves 
and laying down cell walls they form the ENDosPERM tissue out- 
side of the embryo. Into this tissue food is passed constituting 
the Endospermic albumen. 
In the Arrowroot family (Marantacee), the Pepper family 
(Piperacee), etc., nutritive material is passed into the nucellar 
cells causing them to swell up, while to one side a small patch of 
endosperm tissue accommodates a moderate amount of nourish- 
ing substance, thus resulting in the formation of abundant 
PERISPERM and a small reduced ENDosPERM. 
ExaLpuminous SEEps are those in which the albumen is 
stored in the embryo during the growth of the seed. Such seeds 
show the fleshy embryo taking up all or nearly all the room within 
the seed coat. Examples: Puysosticma, AMYGDALUS, etc. 
ALBUMINOUS SEEDs are those in which the nourishment is not 
stored in the embryo until germination takes place. Such 
