protonema

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protonema

(prō′tə-nē′mə)
n. pl. proto·nemata (-nē′mə-tə, -nĕm′ə-)
The filamentous growth that arises following spore germination in liverworts and mosses and develops into a mature gametophyte.

pro′to·ne′mal (-nē′məl), pro′to·ne′ma·tal (-nē′mə-təl, -nĕm′ə-) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

protonema

a haploid, branched, filamentous structure, produced by the germination of a moss spore, that produces new plants by budding.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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