Category: M
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Mericarpid
The nutlets in some Boraginaceae [rare term].
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Mericarpic
Pertaining to mericarps.
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Mericarp
Seed-containing parts of a fruit that do not form a single unit and that each derive from a carpel, these parts usually dehisce independently from each other when ripe. One carpel of an umbilliferous fruit. Part of a fruit that contains seeds and is formed of a carpel, dehiscing independently of others in the same…
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Mentum
(In an orchid flower) a chin-like extension at the base of the flower, composed of the variably united column-foot, lip and lateral sepals.
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Membranous
Like a membrane: flexible and thin, usually also translucent. Resembling a membrane or thin skin. Thin and papery-like, often transparent. Pertaining to or characterized by the development or presence of a membrane.
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Membranaceous
Thin and semi-transparent. Membrane-like.
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Megasporophyll
Sporophyll-or leaf-bearing megaspores; (In gymnosperms) one of the ovulebearing scales in the female cone. A leaflike organ that bears one or more megasporangia.
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Megasporocarp
Growth form from which the megasporangia of Azolla are produced.
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Megaspore
The larger-sized spores (as opposed to microspores) in heterosporous plants, the spores that produces female gametes. A large spore that germinates to form a female gametophyte.
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Megasporangium
The sporangium in which megaspores develop. The structure containing megaspores.