eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-01-13 3 1 153 154 3739 article Rakesh Singh Sikarwar 1 Department of Biochemistry, School of Life Sciences, Dr. B.R. Ambedkar University, Khandari Campus, Agra - 282 002 (India) The pollen grains of Adina cordifolia Linn. (Rubiaceae) were observed by SEM and light microscope and recorded their pollen description. Pollen grains are tricolpate, oblate and sub-spheroidal in shape. The exines reticulate and size of pollen is 45 x 42 μm. The outer and inner surface of colpus membrane is densely verrucate. The tectum is medium and corsely reticulate. The average number of pollen grains produced per anther is 8,000 - 9,000 and pollen grains per flower is 40,000 - 45,000. The number of ovule/flower is two and pollen-ovule is 21,000 : 1. https://www.biotech-asia.org/vol3no1/description-of-pollen-morphological-studies-of-adina-cordifolia-linn-rubiaceae/ Pollen grains; Morphology; Adina cordifolia