Palynology of family Convolvulaceae in Thailand
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Abstract
The pollen morphology of 45 taxa, seven genera of Convolvulaceae is based on observations from a light microscope, but the features seen in the scanning electron microscope are also mentioned where appropriate. The pollen of Thai Convolvulaceae can be divided into six pollen types based on their aperture, namely Polypantoporate, Hexacolpate, Tricolpate, Periporate, Pantoporate and Zonocolpate. Five subtypes were recognized in the Pantoporate type, which are Evolvulus, Aquatica, Quamoclit, Obscura and Pes-tigridis pollen subtypes. Moreover, the spines of all taxa can be divided into six spine types based on Hsiao and Kouth’s (1995) data. The pollen features of Argyreia and Ipomoea are isolated from the other genera in long spine. The pollen morphology of the genus Merremia and Operculina are similar. Evolvulus, Hewittia and Jacquemontia have close pollen features. Thai Convolvulaceae pollen can be grouped into three classes based on size, which are medium, large and very large based on Erdtman’s (1952) data.
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References
Erdthman, G. 1952. Pollen morphology and plant taxonomy. Angiosperms. Almqvist & Wiksell, Stockolm. Erdthman, G. 1966. Pollen morphology and plant taxonomy. London, Hafner Publishing Company, pp. 127-129.
Erdthman, G. 1972. Pollen morphology and plant taxonomy. London, Hafner Publishing Company.
Ferguson, I. K., Verdcourt, B. and Poole, M. M. 1977. Pollen morphology in the genera Merremia and Operculina and its taxonomic signiicance. Kew Bulletin 31 (4), 763-773.
Hsiao, L. and Kuoh, C. S. 1995. Pollen morphology of Ipomoea (Convolvulaceae) in Taiwan. Taiwania 40(3), 299-316.
Liao, G. -I., Chen, M. -Y. and Kuoh, C. -S. 2005. Pollen morphology of Cuscuta (Convolvulaceae) in Taiwan. Botanical Bulletin Academia Sinica 46, 78-81.
Menemen, Y. and Jury, S. L. 2002. Pollen studies on some species of the Genus Convolvulus L. (Convolvulaceae) from Morocco. Turkish Journal of Botany 26, 141-148.
Moore, P. D., Webb, J. A. and Collinson, M. E. 1991. Pollen analysis, 2nd eds. Blackwell Scientific Publication, Oxford. pp. 1-216.
Nairs, P. K. K. 1971. Pollen Morphology of Angiosperms, a Historical and Phylogenetic Study. Darnes & Noble, New York.
Nayar, T. S. 1990. Pollen lora of Maharashtra State India. Today and Tommorows Publishers. New Delhi (India).
Rajurkar, A. V., Tidke J. A. and Patil, G. V. 2011. Studies on pollen morphology of Ipomoea species (Convolvulaceae). Research in Plant Biology 1(5), 41-47.
Sengupta S.(1966) A contribution to the pollen morphology of Ipomoea with special reference to exine stratiication. Transactions of the Bose Research Institutetute 29, 123-129. Staples, G. 2010. Convolvulaceae. Flora of Thailand 10(3), 330-468.
Telleria, M. C. and Daners, G. 2003. Pollen types in Southern new world Convolvulaceae and their taxonomic significance. Plant Systematics and Evolution 243, 99-118.