1216 
Leaf. ‘The principal organ of vege- 
tation borne by the stem, in which 
the sap is elaborated for the growth 
of the plant. 
Leaf-blade. The dilated portion of 
a leaf. 
Leaf-bud. A bud which is the rudi- 
ment of a branch and tends to 
develop into one. 
Leaflet. A separate division of a 
compound leaf. 
Leafstalk. The footstalk or petiole 
of a leaf. 
Leathery. Resembling leather; coria- 
ceous. 
Legume. A normalty 1-celled capsule, 
formed from a single carpel, but 
dehiscing by two valves, as in the 
Pea. 
Leguminous. Pertaining to or bearing 
legumes. 
Lenticular, Lens- or lentil-shaped ; 
of the form of a double-convex lens. 
Lentiginous. Covered with minute 
dots or freckles. 
Tiber. The inner and often fibrous 
layer of bark. 
Lid. The top of a capsule separating 
by transverse dehiscence. 
Ligneous. Woody. 
Ligue. A small tongue-like or strap- 
shaped body, applied to the corolla 
of ray flowers in Compositae, to 
the thin appendage at the junction 
of the blade with the sheath in 
grasses, ete. 
Ligulate. Furnished with a ligule; 
strap-shaped. 
Liguliflorous. Having only flowers 
with ligulate corollas, as in certain - | 
Compositae. 
LTiliaceous. Lily-like. 
Limb. The dilated and usually spread- 
ing portion of a perianth or petal, 
as distinct from the tubular part 
or claw; the blade of a leaf. 
Limbate. Bordered. 
Line. 
The twelfth part of an inch, | 
nearly equivalent to two millimeters. | 
Linear. Narrow and elongated, with 
parallel margins. 
Lineate. Marked with lines. 
Lineolate. Marked with fine lines. 
Linguiform, Lingulate. Tongue - 
shaped; ligulate. 
Appendix VI: Glossary. 
Lip. Hither of the two divisions of 
a bilabiate corolla or calyx; in 
Orchids, the upper petal, usually 
very different from the others. . 
Littoral, Growing on shores, of the 
sea, or rivers, ete. 
Lobate, Lobed. Divided into or bear- 
ing lobes. 
Lobe. Any division of a leaf, corolla, 
ete., especially if rounded. 
Locellate. Having its cells subdivided, 
as the cells of an anther bilocellate 
by a cross-partition. 
Locular. Celled, as bilocular, trilo- 
cular, ete. 
Loculicidal. Used when the cells of a 
capsule open by dehiscence through 
the dorsal suture. 
Lodicule. A name applied to the 
minute hyaline scales in the flower 
of grasses. 
Loment. A legume jointed and usually 
constricted between the seeds. 
Lomentaceous. Bearing or resembling 
a loment. 
Lorate.  Strap-shaped; elongated- 
linear. 
Loricate. Covered with imbricated 
scales. 
Lucid. Smooth and shining. 
Lunate. Crescent-shaped. 
Iurid. Of a dull dirty-brown color. 
Lutescent. Yellowish; pale yellow. 
Lyrate. Pinnatifid with the terminal 
lobe largest and rounded, the lower 
lobes small. 
Macro-. A Greek prefix signifying 
large or long. 
Macrospore. In some cryptogams, the 
larger of the two kinds of spores. 
Maculate. Marked with spots or 
blotches. 
Male. Staminate. 
Mamillate. Bearing nipple - shaped 
prominences. 
Marcesent. Withering and persistent. 
Marginally. Along the edge. 
Marginate, Margined. Furnished with 
a border peculiar in structure or 
appearance. 
Maritime. Belonging to the sea or 
sea-coast. 
Mealy Covered with a whitish mealy 
powder. 
