PALYNOMORPHIC ASSESSMENT OF FLORA OF AITCHISON COLLEGE LAHORE, PAKISTAN
Palynomorphic Assesment of Flora
Keywords:
Palynomorphic assessment, Aitchison, flora, tricolporate, standard method, aperture.Abstract
The present research included micromorphological study of pollen of 43 species belonging to 22 different Dicotyledonous and Monocotyledonous families cultivated and wildly distributed in Aitchison College, Lahore. The observations and analysis were made by using light microscopy. However, pollen was prepared for microscopic studies by following standard methods of Erdtma (1952) and Sexana (1993). The observed characteristics were pollen shape, size, aperture and tectum. Pollen of all the species showed a great variation in size, tectum, aperture and shape. The polar length showed a great variation amongst species as it varied between 12.04µm in Syzgium heyneanum and 189.2µm in Hibiscus rosa-sinensis. However, the Equatorial diameter also ranged between 12.9 to 186.62µm in Syzgium heyneanum and Hibiscus rosa-sinensis respectively for the same species. Maximum pollen size was recorded in Delonix regia (166µm in polar view) belonging to family Fabaceae. The most common pollen shape was prolate and oblate spheroidal. They differed in tectum ranging from psilate, echinate to foveolate. Majority of the observed pollen were monocolpate, inaperturate, monoporate, pantoporate, pantocolpate, tricolpate, tricolporate, zonocolporate and dicolpate with respect to aperture.
