294 MR. HENFREY ON THE ANATOMY OF THE STEM OF VICTORIA REGIA. 
Fig. 5. Vertical section at the base of the stem with the spongy outer layer removed. 
a, b, vascular bundles supplying a leaf {a), and a root-bundle {b ) ; other 
references as before. 
Fig. 6. Vertical section of half the stem about the middle ; references as before. 
Fig. 7. A plane projection of a section of the cylindrical surface of the stem, showing 
the cut ends of the vascular bundles of the leaves (a), the roots (b), and 
the flower-stalks (c), and of the plates of cortical substance connecting 
them \ the interspaces are filled up by spongy tissue like d in fig. 3. 
Fig. 8. Magnified view of the cut end of a ‘leaf and root’ process with that of the 
vascular bundles of a flower below, a, vascular bundles of leaf; b, do. of 
root ; c, do. of flower-stalk, with some of its air-canals running into the 
spongy tissue. 
Fig 9. Cross section of the white cortical substance near the vascular bundles of the 
preceding figure. (Fig. 9-13 are highly magnified.) 
Fig. 10. Cross section of vascular bundles of leaf, from a in do. 
Fig. 1 1 . Cross section of a portion of the vascular end b, supplying a root-bundle. 
Fig. 12. Longitudinal section of do. 
Fig. 13. Longitudinal section of a vascular bundle of the stem. 
