madhukarkai :

Fruiting tree in Florida Photograph by: North Carolina State University Herbarium

Morphology:

Leaves: large evergreen oblong to elliptic leaves, 10.5 to 20 cm (4 to 8 in) long. Frequently emarginated, Pubescent beneath. Acute apex, Asymmetric base, entire margin, characteristic odour. Petioles: broadly winged

Flowers: Large, White Stamens: 16-24 Fruit: large, pale yellow, globose or pyriform, rind thick, pulp varying in colour from crimson to pale pink or yellow

Histology:

Microscopy of the leaf shows abundant anisocytic stomata both surfaces of leaf, presence of vascular bundle in xylem vessels. Thick, ovoid, rectangular epidermal cells were present. Uniserate, multicellular, thin walled, unlignified, covering trichomes were present. Spongy parenchyma cells were present. Calcium oxalate crystals were present in the parenchymatous cells. Starch grains were present except vascular bundle. Oil globules were present in leaf.