from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. anatropous
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to
from The Century Dictionary and Cyclopedia
- Same as anatropous.
Sorry, no etymologies found.
It is a shame to trouble [you], but will you tell me whether the ovule of Primula is "anatropal," nearly as figured by Gray, page 123, "Lessons in Botany," or rather more tending to "amphitropal"?
In other cases, a simple arrest of development takes place; the ovule, for instance, which should be anatropal, remains straight, while the integuments, checked in their development, form imperfect sheaths from which the shrivelled nucleus protrudes.