Megasporophyll


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Related to Megasporophyll: microsporophyll, megasporangium

megasporophyll

[‚meg·ə′spȯr·ə‚fil]
(botany)
A leaf bearing megasporangia.

Megasporophyll

 

a leaf on which or in the axil of which only megasporangia (or a megasporangium) form. Megasporophylls are characteristic of heterosporous Lycopodiales (Lepidodendron, Selaginella) and sago palms. In angiosperms the carpel is homologous to the megasporophyll.

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Distinguishing features: The nonpectinate megasporophyll and the
megasporophyll apices that are devoid of dentition.
twisted on the rachis, and large megasporophyll apex with a broad apical
taxa that have reduced megasporophylls lacking a clearly distinct apical
elongated teeth on its megasporophylls distinguish Cycasfugax within a
group of acaulescent taxa that have megasporophylls lacking a clearly
well-spaced pinnae, small microsporangiate cones, small megasporophylls
Megasporophylls are reduced, with a few long and slender
distinguished by its very small stature, small megasporophylls lacking a
less acaulescent taxa with reduced megasporophylls lacking a clearly
complex its reduced megasporophylls suggest that Cycas brachycantha is
Megasporophylls are similar to those of Cycas balansae but larger and