pleiomeric

As for the many species and varieties of angiosperms, horticultural or natural, with their pleiomeric and meiomeric floral members, petaloid stamens, staminoid petals, carpelloid stamens, etc., it would be difficult to assert absolutely whether we were concerned with disorganizations or neo-organizations.

1970, Claude Wilson Wardlaw, Cellular Differentiation in Plants: And Other Essays, page 141

In the Celastrales and structurally similar Orders such as Rutales Malvales, Sapindales, the gynoecium appears, in different genera, to be either truly compound (connate ovaries derived from two or more female sporoclades) or falsely compound (expanded or pleiomeric derived from one female sporoclade only).

1983, P. J. Faulks, Early Ancestry and Evolution of the Higher Plants, page 60

The great variety of nucleotide conformations which occur in these large asymmetric units has prompted us to describe them as pleiomeric, a term used in botany to describe whorls having more than the usual number of structures.

1983, Struther Arnott, R. Chandrasekaran, A.K. Banerjee, Rungen He, J.K. Walker, “New wrinkles on polynucleotide duplexes”, in Journal of Biomolecular Structure and Dynamics, volume 1, number 2

The morphological differences between this pleiomeric DNA polymer and closely-related, but more symmetrical allomorphs are just as great as those observed in short DNA fragments in crystals.

1985, Cambridge Scientific Biochemistry Abstracts: Nucleic acids