English

Adjective

orthospermous ‎(not comparable)

1. (botany) Having the seeds straight, as in the fruits of some umbelliferous plants.
   • 1859, Charles Darwin, The Origin of Species

     But in regard to the differences both in the internal and external structure of the seeds, […] in the Umbelliferae these differences are of such apparent importance — the seeds being in some cases, according to Tausch, orthospermous in the exterior flowers and coelospermous in the central flowers […]