_Leaf-scar_, _Leaf-stalk_, petiole. _Lenticels_, lenticular dots on young bark. _Lentiginose_, as if freckled. _Lepal_, a made-up word for a staminode. _Lepis_, Greek for a scale, whence _Lepidote_, leprous; covered with scurfy scales. _Leptos_, Greek for slender; so _Leptophyllous_, slender-leaved. _Leukos_, Greek for white; whence _Leucanthous_, white-flowered, &c. _Liber_, the inner bark of Exogenous stems, 140. _Lid_, see _operculum_. _Ligneous_, or _Lignose_, woody in texture. _Ligulate_, furnished with a ligule, 93. _Ligule_, _Ligula_, the strap-shaped corolla in many Compositæ, 93; the membranous appendage at the summit of the leaf-sheaths of most Grasses, 67. _Limb_, the border of a corolla, &c., 89. _Limbate_, bordered (Latin, _Limbus_, a border). _Line_, the twelfth of an inch; or French lines, the tenth. _Linear_, narrow and flat, the margins parallel, 52. _Lineate_, marked with parallel lines. _Lineolate_, marked with minute lines. _Lingulate_, _Linguiform_, tongue-shaped. _Lip_, the principal lobes of a bilabiate corolla or calyx, 92. _Litoral_ or _Littoral_, belonging to the shore. _Livid_, pale lead-colored. _Lobe_, any projection or division (especially a rounded one) of a leaf, &c. _Lobed_ or _Lobate_, cut into lobes, 55, 56; _Lobulate_, into small lobes. _Locellate_, having _Locelli_, i. e. compartments in a cell: thus an anther-cell is often _bilocellate_. _Loculament_, same as _loculus_. _Locular_, relating to the cell or compartment (_Loculus_) of an ovary, &c. _Loculicidal_ (dehiscence), splitting down through the back of each cell, 123. _Locusta_, a name for the spikelet of Grasses. _Lodicule_, one of the scales answering to perianth-leaves in Grass-flowers. _Loment_, a pod which separates transversely into joints, 122. _Lomentaceous_, pertaining to or resembling a loment. _Lorate_, thong-shaped. _Lunate_, crescent-shaped. _Lunulate_, diminutive of _lunate_. _Lupuline_, like hops. _Lusus_, Latin for a sport or abnormal variation. _Luteolus_, yellowish; diminutive of _Luteus_, Latin for yellow. _Lutescent_, verging to yellow. _Lyrate_, lyre-shaped; a pinnatifid leaf of an obovate or spatulate outline, the end-lobe large and roundish, and the lower lobes small, as in fig. 149. _Macros_, Greek for long, sometimes also used for large: thus _Macrophyllous_, long or large-leaved, &c. _Macrospore_, the large kind of spore, when there are two kinds, 160, 161. _Maculate_, spotted or blotched. _Male_ (flowers or plants), having stamens but no pistil. _Mammose_, breast-shaped. _Marcescent_, withering without falling off. _Marginal_, belonging to margin. _Marginate_, margined with an edge different from the rest. _Marginicidal dehiscence_, 123. _Maritime_, belonging to sea-coasts. _Marmorate_, marbled. _Mas._, _Masc._, _Masculine_, male. _Masked_, see _personate_. _Mealy_, see _farinaceous_. _Median_, _Medial_, belonging to the middle. _Medifixed_, attached by the middle.