Part 71

Lenticels. Corky growths on young bark which admit air to the interior of a twig or branch.

Linear. Long and narrow, with parallel edges (as pine needles). Page XII.

Lobe. Any division of an organ, especially if rounded.

Lobed. Provided with a lobe or lobes. Page XIII.

Lustrous. Glossy; shining.

Membranaceous. Thin and somewhat translucent.

Midrib. The central vein of a leaf or leaflet.

Monoecious. Unisexual, with staminate and pistillate flowers on the same individual.

Mucilaginous. Slimy; resembling or secreting mucilage or gum.

Mucronate. Tipped with a small, abrupt point. Page XII.

Naked. Lacking organs or parts which are normally present in related species or genera.

Naturalized. Said of introduced plants which are reproducing by self-sown seeds.

Nectariferous. Producing nectar.

Node. The place upon a stem which normally bears a leaf or whorl of leaves.

Nut. A hard and indehiscent, 1-celled, 1-seeded fruit.

Nutlet. A diminutive nut.

Oblanceolate. Lanceolate, with the broadest part toward the apex. Page XII.

Oblique. Slanting, or with unequal sides.

Oblong. Longer than broad, with sides approximately parallel. Page XII.

Obovale. Ovate, with the broadest part toward the apex. Page XII.

Obovoid. An ovate solid with the broadest part toward the apex.

Obtuse. Blunt or rounded at the apex. Page XII.

Opaque. Dull; neither shining nor translucent.

Opposite. Said of leaves, branches, buds, etc., on opposite sides of a stem at a node.

Orbicular. Circular. Page XII.

Oval. Broadly elliptical. Page XII.

Ovary. The part of a pistil that contains the ovules. Page XIII.

Ovate. Egg-shaped, with the broad end basal. Page XII.