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||Mac`ro*spo*ran"gi*um (?), n. [NL. See
Macro-, and Sporangium.] (Bot.) A
sporangium or conceptacle containing only large spores; -- opposed to
microsporangium. Both are found in the genera
Selaginella, Isoctes, and Marsilia, plants
remotely allied to ferns.

Mac"ro*spore (?), n. [Macro- +
spore.] (Bot.) One of the specially large spores
of certain flowerless plants, as Selaginella, etc.

Mac`ro*spor"ic (?), a. (Bot.)
Of or pertaining to macrospores.

Mac"ro*tone (?), n. [Gr. &?; stretched
out. See Macro-, and Tone.] (Pron.) Same as
Macron.

Ma*cro"tous (?), a. [Macro- +
Gr. o"y^s, gen. 'wto`s, the ear.]
(Zoöl.) Large-eared.

||Ma*crou"ra (?), n. pl.,
Ma*crou"ral (&?;), a., etc.
(Zoöl.) Same as Macrura, Macrural,
etc.


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