490 
PEOFESSOE HE^T'EEY ON THE ANATOiMT OF TICTOEIA EEOIA. 
Explanation of the Plates. 
PLATE XXVIII. 
Eie. 1. Side view (reduced) of the rhizome of Yidona regia, with the older leaves and 
flowers cut off. This drawing shows the bundles of roots coming out from 
the bases of the petioles, and the young leaves emerging from the arge 
Fig. 2. Portion from the centre of fig. 1, showing that the growmg pomt is covered up 
by the large sheathing stipules : the stipule s is axillaiy, an e ongs o 
leaf of which p is the petiole ; / is the base of a flower-stalk axillaiy to e 
leaf of which n" is the petiole, and whose stipule is remoied. 
Fig. 3. A sketch showing the axillary position of the stipule and its double nature, 
having a rib or keel on each side of the petiole. 
Fi^ 4 View of the summit of the rhizome, with the leaves, stipules and peduncles cut 
off close to their origin; showing the arrangement of the organs, the mode 
in which the stipules ensheath the succeeding parts, and the gradual evolu- 
tion of the bundles of roots from the bases of the petioles. 
PLATE XXIX. 
Fig 5 Magnified view of the ^undum vegetationis of the rhizome .— / ,/ , flowei buds, 
■ shifted into the axil of the right-hand half of the stipulee ; s' a‘. the base of 
the sheathing stipule of an outer (removed) leaf; ^ s\ the base of anot ei 
removed leaf; s*, the stipulary portions, and I, the blade of the next ea , 
within which are several other still more rudimentary leaves,— the central 
one still a simple papilla. 
Fig. 6. A young leaf, magnified {ns, of the natural size). 
Fig 7. Another, more advanced, also magnified. 
Fig. 8. A more advanced leaf, with its axillary two-keeled stipule and swollen base. 
Fig. 9. Side view of a similar leaf and stipule. ^ o 
Fi» 10. Terminal bud enveloped in stipules, with all the leaves older than fig. 
" removed ; showing the relative degree of development of the peduncle a.nd 
flower-bud /*. , ^ f 
Fig. 11. Base of a petiole about the same age as in fig. 9, with the early appeamnce of 
the fissure whence the roots emerge ; the petiole at this time gt i o an me 
in diameter. 1 1 j oT 
Fig. 12. More advanced stage ; petiole now half an inch in diameter, and the blade 
the leaf 2 inches long. 
Fig. 13. Side view of a more advanced stage. 
