binervate

English

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Etymology

From Latin bis (“twice”) + nervus (“sinew, nerve”).

Adjective

binervate (not comparable)

(zoology, botany) Of leaves, wings, etc. having only two nerves or ribs.
The binervate wings of this species are elongated and nearly transparent.
- 1863, Miles Joseph Berkeley, Handbook of British Mosses, London: Lovell Reeve & Co., page 68:
  (Hookeria laete-virens): stem procumbent, subpinnate; leaves suddenly acuminate, ovate, or ovate-oblong, with a thickened margin, sharply toothed, binervate.
- 1901, Antony Gepp, “Mosses”, in Catalogue of the African Plants Collected by Dr. Friedrich Welwitsch in 1853–61‎^[1], volume II, Part II: Cryptogamia, London: British Museum (Natural History), Department of Botany, pages 292, 298:
  (Pilotrichella welwitschii): ...the ramuline leaves are spathulate from a contracted base, obsoletely binervate, more longly acuminate, with upper margins involute and serrulate.
  (Erythrodontium bicolor): Ramuline leaves, appressed when dry, erecto-patent when wet, 0.85 mm. long by 0.375 mm. wide, from a broad cordate base elliptic-ovate acuminate, slightly hollowed, shortly binervate, with margins erect or slightly recurved, minutely serrulate above middle...
- 1987, Excerpta botanica, Sectio A: Taxonomica et chorologica, volume 48, number 7, Stuttgart, New York: Gustav Fischer Verlag, page 124:
  ...seedlings with two binervate cotyledons.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “binervate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)