A Grammatical Dictionary of Botanical Latin

bilateral, having two sides, two-sided; “arranged on opposite sides” (Fernald 1950); “of or relating to the right and left sides of a central area, organ or plane; possessing bilateral symmetry” (WIII): bilateralis,-e (adj.B); cf. unilateral: unilateralis,-e (adj.B);

- sporis bilateralibus cristis praeditis, with spores bilateral (two-sided) with crests provided.

- flores in spicam bilateralem dispositi, the flowers arranged into a two-sided spike.

Symmetria bilateralis (adj.B), abl. sg. symmetria bilaterali; = zygomorphic, able to be cut into two mirror halves along only one plane; see symmetry.

NOTE: irregularis,-e (adj.B): irregular, 'bilaterally symmetrical; of a flower in which all' parts are not similar in size and arrangement on the receptacle', asymmetricus,-a,-um (adj.A) 'asymmetric;' zygomorphicus,-a,-um (adj.A) 'divisible into equal halves along one plane only;’ see asymmetric.