BOTANICAL TERMS AND DEFINITIONS. ^XXxiii 
L-EGUME, (Legumen) a seed vessel peculiar to flowers of the pea 
kind, formed of two oblong valves having no dissepiment 
or longitudinal partition ; the seeds are aitached to one of 
its margins only. 
Liber, vide Bark. 
LiGULATE, (Ligulatus) applied to the radial florets of compound 
flowers, when shaped like a strap or ribbon. 
Limb, (Limbus) the outer spreading portion of a monopetalous 
flower. 
Linear, {Lineare) narrow leaves are so called when they are of an 
equal breadth from one end to the other, the two edges 
being straight and equi-distant from each other. 
LiNGULATUM, vide Tongue-shaped. 
LoBED, {Lobatum) leaves are so called when the margins of the 
segments are rounded ; according to the number of lobes 
the leaf is termed Bilobum, Trilobum, &c. 
LvNATTJM, vide Crescent-shaped. 
Lyrate, or Lyre-shaped, {Lyratum) applied to leaves divided 
transversely into several segments, the segments gradually 
increasing in size as they approach the extremity of the 
leaf. 
Many-flowered, {Multijlorus) applied to peduncles, i. e. stalks 
bearing many flowers. 
Medulla, vide Pith. 
Membranous, {Membranaceum) applied to leaves of an extremely 
thin and pliable texture ; also to stems of a delicate sub- 
stance, composed of several thin membranes laid one over 
the other. 
Milk, {Lac) a vegetable secretion either white or yellow, bearing a 
resemblance to animal milk, and composed of a watery fluid 
in combination with an oil or resin. 
MoNOCOTYLEDONOUs, ( Monocotyledones) applied to a tribe of 
plants, whose embryos possess one cotyledon or seed-lobe. 
MoNcecious, (Monaecia) applied to a tribe of plants having the 
stamens and pistils situated in separate flowers, but both 
flowers growing on the same individual plant. 
Monopetalous, (Monopetalus) flowers are so called when con- 
sisting only of one coloured leaf or petal. 
Monophyllous, {Monophyllus) applied to calyxes consisting of 
not more than one leaf. 
Mucronatum, vide Cuspidate, 
vol. I. h 
