heterotropaladj.
/hɛtəˈrɒtrəpəl/ Botany.
= heterotropous adj.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > seed > [adjective] > of parts > relating to embryo or radicle
rostellate1800
orthotropous1819
peritropal1819
radicular1819
rostelliform1819
homotropous1829
heterotropous1830
heterotropal1832
axile1839
amphitropous1841
homotropal1844
rostellara1845
amphitropal1847
peritropous1849
polyembryonate1864
polyembryonic1864
proembryonic1875
1832 J. Lindley Introd. Bot. i. ii. 193 The radicle will point neither to the apex nor to the base of the seed, but the embryo will lie, as it were, across it, or be heterotropal, as is the case in the primrose.
1842 W. T. Brande Dict. Sci., Lit. & Art 555/1 Heterotropal, a term applied to the embryo of a seed when the former lies across the latter; that is to say, neither pointing to its base nor apex.
1866 J. Lindley & T. Moore Treasury Bot. I. 588/1 Heterotropal, lying parallel with the hilum. A term applied only to the embryo.
This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2022).
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