The genus Cinnamomum

1 2 3
4
6
8 9
Botany and Crop Improvement of Cinnamon and Cassia 47
diverge at a slightly higher level (Fig. 2.13, 1–3). These are the vascular traces for
perianth and stamens. The remaining bundles in the centre serve as the vascular supply
to the ovary. The peripherals divide tangentially to form both the outer series of
bundles which supply the tepals and the outer two whorls of stamens, and the inner
5
7
Figure 2.13 Floral anatomy of C. verum. 1 and 2. Pedicel with a closed ring of vascular bundles.
Initiation (projections) of six traces from the central stale. 3. The six peripheral bundles
to tepals and stamens and the central bundle to the ovary. 4 and 5. Differentiation of
dorsal and ventral bundles. The perianth cup with the outer series of bundles for
the outer two whorls of stamens and an inner series for the inner two whorls of stamens.
In 5, tepals and stamens starts to differentiate. 6 and 7. Further differentiation of tepals
and stamens. The third whorl of stamens contains three bundles each, the latter ones
supplying the glandular outgrowths. 8 and 9. Final stages indicating three whorls of
bilocular anthers of three each and the staminodal fourth whorl. In the centre there is
the vascular supply to the ovary. (Source: Shylaja, 1984.)