from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Bilaterally symmetrical. Used of organisms or parts.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. having bilateral symmetry
from the GNU version of the Collaborative International Dictionary of English
- adj. Symmetrical bilaterally; -- said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane.
from The Century Dictionary and Cyclopedia
- In botany, same as zygomorphous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. capable of division into symmetrical halves by only one longitudinal plane passing through the axis
[Wikipedia. com] Freesias are zygomorphic, meaning that they grow along only the side of the stem.
Freesias are zygomorphic, meaning that they grow along only the side of the stem.
From these experiments, as well as from very numerous studies on the structure of the flower with reference to insect aid in fertilization, we are justified in the conclusion that all bright-colored flowers are, to a great extent, dependent upon insect aid for transferring the pollen from one flower to another, and that many, especially those with tubular or zygomorphic (bilateral) flowers are perfectly incapable of self-fertilization.
Lateral pelories are generally of zygomorphic structure, though of course in a less degree than the normal bilabiate flowers, but they have unequal spurs, the middle one being of the ordinary length, the two neighboring being shorter, and those standing next to the opposite side of the flower being the shortest of all.
I am not sure whether such peloric flowers have ever been purely pollinated and their seed saved separately, but I have often observed that the race comes pure from the seed of the zygomorphic flowers.
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Lecythidaceae - Part II: the zygomorphic-flowered New World Genera (Couroupita, Corythophora, Bertholletia, Couratari, Eschweilera, & Lecythis).
There are generally four stamens, two long and two short, as in the labiates, but in the mullein (_Verbascum_) (Fig. 120, _M_), where the flower is only slightly zygomorphic, there is a fifth rudimentary stamen, while in others (_e. g.