from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Arranged in exactly vertical ranks, as leaves on stems.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Arranged in exactly vertical ranks, as the leaves on stems of many kinds; -- opposed to curviserial.

from The Century Dictionary and Cyclopedia

  • Disposed in a right line; rectilinear or straight, as a row or series of parts.
  • In botany, disposed in one or more straight ranks: specifically used by Bravais, in contrast with curviserial (which see), to describe those forms of phyllotaxy in which a second leaf soon stands exactly over any given leaf, and thus all fall into right lines.


recti- +‎ serial (Wiktionary)



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