Definitions
from The Century Dictionary.
- In botany, belonging to a protonema.
Etymologies
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Examples
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The protonemal filaments may be made to grow from almost any part of the plant by keeping it moist, but grow most abundantly from the base of the stem.
Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell
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The branched filamentous rhizoids which spring from the lower region of the stem also correspond to protonemal branches.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various
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