Appressed. Lying close and flat against.
Aromatic. Fragrant; with an agreeable odor.
Axil. The upper one of the two angles formed by the juncture of a leaf with a stem.
Axillary. Situated in an axil.
Bark. The outer covering of a trunk or branch.
Bearded. Bearing a long, bristle-like appendage, or furnished with long or stiff hairs.
Berry. A fruit which is fleshy throughout.
Bi-pinnate. Twice pinnate.
Blade. The expanded portion of a leaf, etc.
Bloom. A powdery or waxy substance easily rubbed off.
Bract. A more or less modified leaf subtending a flower or belonging to an inflorescence.
Branch. A secondary division of a trunk.
Branchlet. A small branch.
Bud. An undeveloped stem or branch, with or without scales.
Bud-scales. Modified leaves covering a bud.
Bundle-scars. Dots on the surface of a leaf-scar, which are scars left by the fibro-vascular bundles which run through the petiole into the blade of the leaf. Page XVI.
Bur. A spiny fruit.
Calyx. The outer part of a perianth, usually green in color. Page xiii.
Campanulate. Bell-shaped.
Capsule. A dry fruit of more than one carpel which splits at maturity to release the seeds.
Carpel. A simple pistil, or one member of a compound pistil.
Catkin. A spike of unisexual flowers, each subtended by a bract, and usually deciduous in one piece.
Chambered. Said of pith which is interrupted by hollow spaces.
Ciliate. Fringed with hairs on the margin.
Cinereous. Ash-gray color.
Claw. The narrow, stalk-like base of a petal, sepal, etc.
Cleft. Cut about half-way to the middle.
Cluster. A group of two or more organs (flowers, fruit, etc.) on a plant at a node or end of a stem.
Michigan Trees: a Handbook of the Native and Most Important Introduced Species · The Wunder Library — complete classics, free to read, with narration.