Comparative pollen morphology of Calycanthaceae for their taxonomic implication

  • Niroj Paudel Department of Applied Plant Science, Kangwon National University, Chuncheon 24341, South Korea
  • Kweon Heo Department of Applied Plant Science, Kangwon National University, Chuncheon 24341, South Korea
Keywords: Light microscopy, Ornamentation, Scanning electron microscopy, Shape and size, Symmetry

Abstract

The pollen morphology of four species of Calycanthaceae is described based on the observation of scanning electron microscopy and light microscopy. All pollens are monad, large grain category. The pollen grain was elliptic with disulcate. Surface ornamentation is smooth. Pollen grains of each species are from the genus Sinocalycanthus, Calycanthus, Chimonanthus and Idiospermum. The basic shape of the pollen grains is elliptical. The pollen is spheroid in Calycanthaceae except in Idiospermum, which represent boat-shape. The circular shape was in polar views in Chimonanthus but equatorial shape in Sinocalycanthus. Idiospermum and Chimonanthus were smooth exine with micro-perforation but rugose exine in Sinocalycanthus and Chimonanthus.

DOI: http://dx.doi.org/10.5281/zenodo.3763335

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Published
2020-04-23
How to Cite
(1)
Paudel, N.; Heo, K. Comparative Pollen Morphology of Calycanthaceae for Their Taxonomic Implication. European Journal of Biological Research 2020, 10, 74-80.
Section
Research Articles