Development of pollinium in <i>Malaxis muscifera</i> (Lindl.) Kuntze
DOI:
https://doi.org/10.3329/bjb.v39i2.7480Keywords:
Malaxis muscifera, Anther, Pollinium, MorphogenesisAbstract
Anther primordium of Malaxis muscifera (Lindl.) Kuntze initiated as a homogenous mass of meristematic cells is surrounded by protoderm. Two thecae are oriented towards the labellum, each of them consisted of a mass of archesporial cells. The hypodermal layer of sporogenous cells divide periclinally to form an endothecial, a middle layer and a tapetum. Pollen mother cells formed different types of microspore tetrads. Each microspore divides mitotically resulting a generative and a vegetative cell. Degeneration of the sterile septum resulted four naked and clavate pollinia.
Key words: Malaxis muscifera; Anther; Pollinium; Morphogenesis
DOI: 10.3329/bjb.v39i2.7480
Bangladesh J. Bot. 39(2): 193-198, 2010 (December)
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