Category: D

(Of pollen) with two rounded apertures.  

A pyxis derived from an inferior ovary [obscure term].  

(Of stamens) With twice as many stamens as petals.  

(2n) with twice the haploid (n) (somatic) number of chromosomes. Having two sets of chromosomes; said of somatic cells, which contain twice the number of chromosomes present in the egg or sperm. The state of a cell in which each of the chromosomes, except for the sex chromosomes, is always represented twice (46 chromosomes in…

(Of cotyledons in a seed) folded twice, transversely [obscure term].  

With unisexual flowers, the male and female flowers on different plants; with male and female plants. Species with male and female parts on separate plants. Having stamens and pistils in separate flowers on different parts of the same species. Male and female flowers on various plants. Having male and female flowers borne on separate plants.…

With the perianth in two whorls [obscure term].  

Divided into two parts, but with one part small so that only the other one seems present.  

With flower parts in sets of two.