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Selfing in Buxus wallichiana Baill.:A Trait or Strategy?


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1 Department of Botany, University of Jammu, Jammu 180 006, India
 

Plants of Buxus wallichiana are evergreen trees 1,2 ; these are monoecious with male and female flowers aggregated together in a cyathium. In each inflorescence, a centrally placed female flower remains surrounded by 8–14 male flowers (Figure 1a,b). Individual male flower is small, incomplete, zygomorphic and averages 5 mm in size. It consists of 4 basifixed anthers enclosed within 5 tepals (Figure 1c). Female flower is slightly smaller than males and has an average size of 4.6 mm. It consists of 5 tepals enclosing a pistil comprising of a tricarpellary ovary and three short styles spread apart with the help of three nectariferous bulges. Each style terminates into bifid stigma (Figure 1d). Ovary is syncarpous, 3 loculed and each locule has ovules attached to a central placenta. Stigma is wet and papillate.
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  • Selfing in Buxus wallichiana Baill.:A Trait or Strategy?

Abstract Views: 476  |  PDF Views: 142

Authors

Eshan Sharma
Department of Botany, University of Jammu, Jammu 180 006, India
Uma Bharti
Department of Botany, University of Jammu, Jammu 180 006, India
Upvan Bhushan
Department of Botany, University of Jammu, Jammu 180 006, India
Namrata Sharma
Department of Botany, University of Jammu, Jammu 180 006, India

Abstract


Plants of Buxus wallichiana are evergreen trees 1,2 ; these are monoecious with male and female flowers aggregated together in a cyathium. In each inflorescence, a centrally placed female flower remains surrounded by 8–14 male flowers (Figure 1a,b). Individual male flower is small, incomplete, zygomorphic and averages 5 mm in size. It consists of 4 basifixed anthers enclosed within 5 tepals (Figure 1c). Female flower is slightly smaller than males and has an average size of 4.6 mm. It consists of 5 tepals enclosing a pistil comprising of a tricarpellary ovary and three short styles spread apart with the help of three nectariferous bulges. Each style terminates into bifid stigma (Figure 1d). Ovary is syncarpous, 3 loculed and each locule has ovules attached to a central placenta. Stigma is wet and papillate.

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DOI: https://doi.org/10.18520/cs%2Fv118%2Fi7%2F1021-1022