Effects of Nitrogen Application on the Growth and Photosynthetic Characteristics of Calophyllum inophyllum Seedlings Chemical Constituents from the Twigs of Calophyllum inophyllum Linn. Studies on flavonoids from stems and leaves of Calophyllum inophyllum Axillary Bud Propagation and Regeneration from Stem Segment Explants in Calophyllum inophyllum