Adaptive Features of Pollen Morphology of Hydrophytes in Relation to Ecological Class

Somnath Bhowmik *

Department of Botany, Tripura University, Suryamaninagar, Tripura, PIN-799022, India.

B. K. Datta

Department of Botany, Tripura University, Suryamaninagar, Tripura, PIN-799022, India.

*Author to whom correspondence should be addressed.


Pollen morphology is used for comparative importance in taxonomy and evolution at all taxa levels. The pollen features are constant for each genus while the exine sculpturing pattern is highly recognizable for various genera. In this study we have narrated how pollen exine thickness acts as an adaptive feature of hydrophytes. There is a clear increase in exine thickness with respect to the ecological classes of hydrophytes which can be treated as evolutionary schemes of the plant kingdom. An attempt is also made to find if there is any relation to pollen morphology and exine pattern. The value of such studies could be augmented appreciably where it is possible to supplement the other data with pollen records for the more distant past and experimental treatment of postulated vegetational process of hydrophytes.

Keywords: Aquatic and hydrophyte plant, pollen morphology, adaptive feature, evolution

How to Cite

Bhowmik , S., & Datta, B. K. (2023). Adaptive Features of Pollen Morphology of Hydrophytes in Relation to Ecological Class . Asian Journal of Research in Botany, 6(2), 85–98. Retrieved from


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Walker JW, Doyle JA. The bases of angiosperm phylogeny: Palynology. Annals of the Missouri Botanical Garden. 1975;62(3):664-723. Available:

Harris DR. Plants, animals and man in the outer Leeward Island, West Indies. In: Keliman, MC. Plant Geography. Methuen & Co. Ltd., Lomdon. 1965:131.

Moore PD, Webb JA. An illustrated guide to pollen analysis. Hodder and Stoughton, London; 1978.

Tomoshevich M, Banaev E, Khozyaykina S, Erst A. Pollen morphology of some species from genus Nitraria. Plants. 2022;11(8):2359. Available:

Nair PKK. Advances in palynology. National Botanical Garden, Lucknow, India; 1964

Nair PKK. Pollen morphology. In: Nair PKK (ed.), Advances in Palynology. National Botanical Garden. Lucknow. 1970:203 – 224.

Lindley J. The genera and species of orchidaceous plants. London; 1830.

Cranwell LM. New Zealand pollen studies: The monocotyledons. Bulletin of Auckland Institute Musuem. 1952;3:1-91.

Erdtman G. Pollen morphology and plant taxonomy- angiosperms. Almqvist and Wiksell, Stockholm; 1952.

Erdtman G. Pollen morphology and plant taxonomy. Gymnospermae, Pteridophyta, Bryophyta. Stockholm and New York; 1957.

Fritzsche CJ. Beitrage zur Kenntniss des pollen. Berlin. 1832;48.

Selling OH. Studies in hawaiian pollen statistics, Part I & II. Bishop Museum Publ. Honolulu, Hawaii; 1947

Wodehouse RP. Pollen grains. McGraw Hill and Co. New York; 1935.

Kuprianova LA. Morphologie des pollens et phylogenie des monocotyledons enrusse. Comm. Komarov Institute Academic Science. 1948;1(7):163 – 262.

Chaloner WG. Spores and land plant evolution. Review of Palaeobotany and Palynology. 1967;1:83 – 93.

Muller J. Palynological evidence on early differentiation of angiospenns. Biological Revision 1970;45:417 – 450.

Eames AB. Morphology of the Angiosperms. New York. 1961

Cook CDK. Wind pollination in aquatic angiosperms. Annals of Missouri Botanical Garden. 1988;75:768-777.


Raj B, Saxena MR. Pollen morphology of aquatic angiosperms. Pollen et Spore. 1966;8:49- 55.

Simpson M. Pollen ultrastructure of the pontederiaceae. Grana. 1987;26(2):113-126.


Nilison S, Orndiff R. Menyanthaceae dum. World Pollen and Spore Flora. 1973;2:1-20.

Praglowski J. The pollen morphology of the haloragaceae with reference to taxonomy. Grana. 1970;10(3):159 -239.

Argue CL. Pollen studies in the alismataceae with special reference to taxonomy. Pollen et Spores. 1976;18:161 – 201.

Chanda S, Nilson S, Blackemore S. Phylogenetic trends in the alismatales with reference to pollen grains. Grana. 1988;27:257-272. Available:

Wodehouse RP. Pollen grains in the identification and classification of plants; 1936.

Argue CL. Pollen of the butomaceae and alismataceae. I. Development of pollen wall in Butomus umbellatus L. Grana. 1971;11(3):131-144. Available:

Takahashil M. Pollen development in a submerged plant. Ottelia alismoides (L.) pers. (hydrocharitaceae). Journal of Plant Research. 1994;107:161-164. Available:

Tanaka N, Uehra K, Murata J. Correlation between pollen morphology and pollination mechanism in hydrocharitaceae. Journal of Plant Research. 2004;117:265-276. Available:

Obson JM, O’Neil SP, El-Ghazaly G. Pollen morphology and ultastructure of Marathrum schiedeanum (podestemaceae). Grana. 2000;39(5):221-225. Available:

Shuang-Quan H, You-Hao G, Robert GW, Yao-Hua, S, Kun S. Mechanism of underwater pollination in Najas marina (najadaceae). Aquatic Botany. 2001;70(1):67 – 78.

Lacroix CR, Kemp JR. Developmental morphology of the androceium and gynoceium in Rubbia maritiam L. Consideration for Pollination. Aquatic Botany. 1997;59(3-4):253-262. Available:

Cooper RL, Osborn JM, Philbrick CT. Comparative pollen morphology and ultrastructure of Callitricaceae. American Journal of Botany. 2000;87(2):161-175. PMID: 10675302

Pettitt JM, Jermy AC. Pollen in hydrophilous angiosperms. Micron. Available:

Sorsa P. Pollen morphology of Potamogeton and Groenalndia (potamogetonaceae) and its taxonomic significance. Annals Botanical Fennici. 1988;25:179-199. Available:

Kuprianova LA, Tarasevich VF. The ultra structure of the surface of pollen grain wall in some genera of the family lemnaceae and the related genera of the family areaceae. Botanicheskii Zhurnal. 1984;69:1656 – 1661.

Landolt E. The Family of lemnaceae - a monographic study. Veroffentlichungen des Geobotanischen Institutes. ETH Stiftung Rubel Zurich. 1986;71:1 – 566.

Tarasevich VF. Palynological evidence on the position of the lemnaceae family in the system of flowering plants. Botanicheskii Zhurnal. 1990;75(7):959 – 965.

Alwadie HM. Pollen morphology of six aquatic angiosperm from Saudi Arab. Asian Journal of Biological Science. 2008;1:45-50. Available:

Shiga T, Kadono Y. Natural hybridization of two Nuphar species in Northern Japan: Homoploid hybrid speciation in progress. Aquatic Botany. 2007;86(2):123-131. DOI: 10.1016/j.aquabot.2006.09.008

Singh CB, Motial VS, Nair PKK. Pollen morphology of Nymphaea. Plant Science. 1969;1:53 – 56.

Jones MR, Clarke GCS. Nymphaeaceae - the NEP flora. Review of Palaeobotany and Palynology. 1981;33:57-67.

Murthy GVS. Pollen morphology of nymphaeceae (s.l.). Bulletin of Botanical Survey of India. 2000;42(1 - 4):73 - 80.

Perveen A. Pollen characters and their evolutionary significance with special reference to the flora of Karachi. Turkish Journal of Botany. 2000;24(2):365-377.

Corpus ID: 59068090

Saadi Al, SAA, Al – Mayah ARA. Pollen morphological study of dicots wetland plants of Southern Marshes of Iraq. Marsh Bulletin. 2012;7(2):169 – 188.

Faegri K, Iversen J. Text book of pollen analysis. (2nd eds) Munksgaaard. Copenhagen; 1964.

Manso MML, Andres IM. Pollinic characters in Mediterranean salt marsh plants in relation to their pollination mechanism. Acta Botanica Gallica. 1993;140(3):263-274.

Proctor M, Yeo P, Lack A. The natural history of pollination. Timber press, USA; 1996.

Walker JW. Comparative pollen morphology and phylogeny of Ranalean complex. In Beck CB (ed): Origin and Early Evolution of Angiosperm. New York, Colombia University Press. 1976:241 – 299

Ackerman JD. Abiotic pollen and pollination: Ecological, functional, and evolutionary perspectives. Plant Systematics and Evolution. 2000;222(1-4):167 - 185.

Saucer JD. Plants and man on the Seychettes Coast, a study in historical biography. In: Kellman MC. Plant Geography. Methueu and Co. Ltd., London. 1967:131.

West RG. Interrelation between ecology and quaternary paleobotany. Journal of Ecology. 1964;52(Suppl.):47 – 57.

Heslop Harrison J. Pollen germination and pollen-tube growth. International Review of Cytology. 1987;107:1 – 78.

Praglowski J (1970). The pollen morphology of the haloragaceae with reference to taxonomy. Grana 1975; 10(3):159 -239.