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megasporophyll

   Also found in: Encyclopedia 0.03 sec.
meg·a·spo·ro·phyll  (mg-spôr-fl, -spr-)
n.
A leaflike structure that bears megasporangia.
megasporophyll [ˌmɛgəˈspɔːrəfɪl]
n
(Life Sciences & Allied Applications / Botany) a leaf on which the megaspores are formed: corresponds to the carpel of a flowering plant Compare microsporophyll
[from mega- + sporophyll]
megasporophyll  (mg-spôr-fl)
A leaflike structure that bears megasporangia.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.megasporophyll - in non-flowering plants, a sporophyll that bears only megasporangiamegasporophyll - in non-flowering plants, a sporophyll that bears only megasporangia
sporophyl, sporophyll - leaf in ferns and mosses that bears the sporangia
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7) the axis carried two to 30 scales, including four to six " megasporophylls " with terminal inverted ovules.
The telome theory by Wilson, Carl L. / The Botanical Review
Megasporophylls not organized into a determinate strobilus but, rather, spirally arranged in a loose terminal cluster and falling separately at maturity, with the central axis eventually continuing vegetative growth; each megasporophyll with a proximal stalked portion bearing 2-10 marginally inserted ovules and a distal pinnatifid, pectinate, or toothed laminar portion.
Cycads of Colombia by Stevenson, Dennis Wm. / The Botanical Review
The divergent position of Cycas was reinforced, lending support to its ancient age and possibly primitive megasporophyll morphology.
Molecular systematic studies in cycads: evidence from trnL intron and ... by Bogler, David J.; Francisco-Ortega, Javier / The Botanical Review
 
 
 
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