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Bulletin of Botanical Research ›› 2023, Vol. 43 ›› Issue (3): 470-480.doi: 10.7525/j.issn.1673-5102.2023.03.017

• Plant reproductive biology • Previous Articles    

Pollen Morphological Characters of 20 Species from Camellia Sect. Theopsis and Sect. Eriandria

Yali ZHANG1, Naiying YANG2, Yao SONG3, Xiangpeng LI4, Weizhen GUO3, Youming CAI1()   

  1. 1.Forestry & Fruit Tree Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201403
    2.Shanghai Normal University,Shanghai 200231
    3.Shanghai Botanical Garden,Shanghai 200231
    4.Hunan Forestry Botanical Garden,Changsha 410116
  • Received:2022-12-15 Online:2023-05-20 Published:2023-05-11
  • Contact: Youming CAI E-mail:caiyouming@saas.sh.cn
  • About author:ZHANG Yali(1979—),female,professor,majoring in Camellia resources and its application study.
  • Supported by:
    Construction of Shanghai Flower Industry Technology System(2022-2026);National Natural Science Foundation of China Youth Fund(31500578)


To provide references for the phylogenetic evolution, classification and identification of plants in Camellia Sect. Theopsis and Camellia Sect. Eriandria were studied by pollen morphology. 20 species of the two sections, pollen shape and exine sculpture were used as materials and observed by scanning electron microscopy(SEM). Results indicated: (1)Pollen size of 20 species mainly belonged to medium(25-50 μm) and large(50-100 μm) pollen. The pollens were all single-grain pollen with three grooves, three-cracked in the polar view and long spherical in the equatorial view. (2)There were three types of pollen exine sculpture, including foveolate, granulate and verrucate. C. elongata was foveolate type, C. forrestii, and C. forrestii var. acutisepala were verrucate type, and the other 17 species were granulate type. We considered that the evolution trend of pollen exine sculpture of the two sections was foveolate→granulate→verrucate. The results of pollen exine sculpture types supported the view that Sect. Theopsis and Sect. Eriandria were a monophyletic clade, while the taxonomic status of C. tsofuii and C. lipoensis should be further studied.

Key words: ornamental plants, Camellia Sect.Theopsis, Camellia Sect.Eriandria, pollen

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