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planoconvex: Relatively thin with opposite broad faces, one plane and one convex.[1]
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The given value was not understood.

Example(s): Example sentences from FNA : [1] Perigynia brown to nearly black at maturity, essentially veinless, usually stipitate, ovate, planoconvex, (2 .2– )2.6–3.7 × 1.2–1.9 mm, dull; [2] Utricles lanceolate-ovate, planoconvex, 10–15 mm, thickly leathery, many veined, serrulate winged, apex with long beak, orifice deeply 2-toothed.


  1. Categorical Glossary for the Flora of North America Project, by Robert W. Kiger and Duncan M. Porter. 2001. Hunt Institute for Botanical Documentation.