476 Oliver . — The Ovules of the older Gymnosperms. 
vascular strand to pass to the base of the nucellus ; the dark red stripe joining the 
two foramina represents the supposed traces of the tracheal plate; t., mass of 
transfusion-tracheides ; the old integumental bundles are supposed to be reduced 
to these spurs. 
Fig. 13. View of stone of Torreya Myristica stripped of its fleshy arillus. The 
shield with foramen (/.) is near the apex; m., micropyle ; p., principal plane, x 2. 
Fig. 14. Cross-section of seed of Torreya Myristica so cut as to lie in the plane 
of one foramen (towards the bottom of the figure) and to pass below the other. 
The section is consequently not quite transverse. The red X (below) is the bundle 
traversing the foramen and its two branches which pass right and left in the 
direction of the furrows of the gaps (g.) here present on the flanks between nucellus 
and integument. The foot of the T represents the portion of the bundle which 
remains outside the stone ( = t Fig. 12). On the other side of the seed the 
bundle is cut through a little below the foramen. The two detached red spots are 
the cross-sections of the strands which follow the groove. As these strands sag 
a good deal they can only be followed from x to y by examining a series of trans- 
verse sections, e., embryo ; p. prothallium ; ml., coloured pale red, represents the 
mucilage-layer of the nucellar wall ; i., integument, the dark shaded ring is the 
stone (sclerotesta), the lighter ring within it is also a part of the integument but 
of soft parenchyma (endotesta) ; a ., arillus. Had the section been cut a little 
nearer the apex, gaps would have appeared right and left between the integument 
and arillus. x 2. 
