Life-history ofCycas circinalis L
- 27 Downloads
The paper deals with the germination of the seeds ofCycas circinalis L, the growth and structure of the different parts of the seedling in the stem, root, cotyledons and plumule. The anatomy of four different types of roots, is given. The anatomy of the stem, cotyledonary plate, procambial strands and their orientation in the stem and root are described. The origin and development of stomata found on the hypocotyledonary region of the embryo are given in detail. The cotyledons, their vasculature and final fate are described.
KeywordsLateral Root Guard Cell Vascular Bundle Secondary Xylem Vascular Cylinder
Unable to display preview. Download preview PDF.
- Chamberlain, C. J. ..The Living Cycads, 1919.Google Scholar
- Florin, R., 1931 .. As quoted by EasuPlant Anatomy., 2nd Edition, 1964.Google Scholar
- Hill, T. G. and De Fraine E... “On the seedling structure of Gymnosperm,”Ann. Bot., 1909,22, 689–712.Google Scholar
- —— and Nautyal, D. D... “Seed cuticle in some modern cycads,”Curr. Sci., 1962,31, 75–76.Google Scholar
- Rao, L. N... “Swollen roots ofCycas circinalis.,” Ibid., 1971,40, 117–18.Google Scholar
- Rao, V. S. and Murthy, N. N. “A noteworthy feature in the anatomy ofCycas roots,” Ibid., 1937,9, 478.Google Scholar
- Sloover, De J. L. .. “Etudes Sur les cycadales—III”La Cellule, 1964,64.Google Scholar