Abstract
Pollen morphological studies of certain Acanthaceous plants belonging to 18 species of 15 genera have been carried out. An array of pollen types are observed, they include 2-8 Zonicolporate types showing different ornamentation pattern, number of colpi and nature of mesocolpium. The pollen types are categorised according to 'NPC' system of classification. Specific pollen keys are drawn in certain genera under the investigation.
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