exospore

[ek-suh-spawr, -spohr]

noun Botany, Mycology.

the outer coat of a spore.

Origin:
1855–60; exo- + spore

Related forms

ex·o·spor·al

[ek-suh-spawr-uhl, -spohr-, ek-sos-per-] , ex·o·spor·ous, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Exospore is always a great word to know.

So is archegonia. Does it mean:

female reproductive organ which produces eggs in bryophytes, ferns and most gymnosperms

method of forming complex organic materials using sunlight as energy source

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Collins

World English Dictionary

exospore (ˈɛksəʊˌspɔː)

—n
	the outer layer of the spores of some algae and fungi

exo'sporous

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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exospore

ex·o·spore