Ovary inferior - the ovule bearing part of the flover found below the calyx 
leaves. 
Ovary superior - the ovule bearing part of the flower found above the calyx 
j- leaves. 
Palea - in the grass spihelet^ the upper of the two enclosing bracts, the 
j lower one being the lemina. 
Perianth - a collective term for the calyx and corolla. 
Phyllotaxy - the arrangement of leaves on an axis, expressed by a fraction, 
the numerator representing the number of revolutions of a spiral 
made in passing from one leaf past each successive leaf to reach 
! the leaf directly above the initial leaf, and the denominator 
representing the number of leaves passed in the spiral thus made. 
I , 
j Rachilla - axis bearing florets (gromineae). 
; Rays (ray floret) - the straplike extension of the corolla of florets 
(compositae). 
Spikelet - one part of a compound inflorescence the floral unit of fam. 
gromineae composed of flowers and subtending bracts. 
■ 
Stipulate - with stipules. 
Stipule - an appendage at the base of the petiole (leaf stalk). 
Unisexual - having one sex present and functional in the one flower. 
Sorus - the heap or cluster of fruiting bodies found on the dorsal side of 
fern frond. 
Zygomorphic — corollas when divisible into equal halves in one plane only. 
