from The Century Dictionary.
- 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.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Bot.) Arranged in exactly vertical ranks, as the leaves on stems of many kinds; -- opposed to
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective botany Arranged in exactly
vertical ranks, as leaveson stems.
from Wiktionary, Creative Commons Attribution/Share-Alike License
recti- + serial
The leaves of this plant are naturally rectiserial and decussate, but, in the twisted stem the leaves were curviserial, and arranged according to the 5/13 plan.