EXPLANATION OF SPECIAL TERMS

Habitat: A plant's natural place of growth

Pubescent: Downy, covered with soft hairs.

Tolerant: Shade-resistant

	Acuminate Gradually tapering to apex. (Fig. I) Acute Sharp-pointed. (Fig. 2) Entire: Wholly without teeth or other divisions such as lobes. (Fig. 1) Unarmed: Without prickles. (Figs. 2 and 28)
	Lobe: Any segment of an organ. (Fig. 3)
	Alternate: Applied to that form of leaf arrangement in which only one leaf occurs at the same height on the stem. (Fig. 5) Bud: An undeveloped branch or fiower shoot, generally covered with bud scales and most conspicuous in winter. (Fig. 5) Lenticel: Warty structure of the bark which permits the passage of air inward or outward. (Fig. 4). Opposite: When leaves are paired at the same height one on each side of the twig. (Fig. 4). Pith: The softer central region of a twig. (Fig. 4). Terminal Borne at the end of a stem or branch. (Fig. 4)
	Berry: A simple fleshy fruit, with seeds embedded in the pulpy mass. (Fig. 6) Bisexual: Having both sex organs on the individual. (Fig. 7) Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24) Perfect: A flower having both. stamens and pistils. (Fig. 7)
	Bract: A leaf, usually small, subtending a flower or flower cluster. (Fig. 8) Capsule: A dry fruit of two carpels or more, usually opening by valves or teeth. (Fig. 9) Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24)
	Carpel: A floral leaf bearing ovules. (Fig. 10) Catkin: A spike of imperfect flowers subtended by scarious bracts, as in willows. (Fig. 11)
	Compound: Composed of two or more similar parts. (Fig. 12) Cone: A fruit, like that of a pine, consisting of woody, overlapping scales. (Fig.13) Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24)
	Drupe: A simple, one-seeded, fleshy fruit, the outer wall fleshy, the inner wall bony. (Fig. 14) Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24)
	Diffuse-porous: Porous wood in which the pores exhibit little or no variation in size, indicative of seasonal growth. (Fig. 16) Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24) Haw: A fruit of hawthorn. (Fig. 18) Imperfect: A flower lacking either stamens or pistils. (Fig. 15) Pore: A tiny opening as in.the wood, leaf, etc. (Figs. 16 and 17) Ring-porous: Porous wood in which the springwood pores are much larger than those of the summerwood, particularly if the transition from springwood to summerwood is abrupt. (Fig. 17) Semi-ring: Wood intermediate between ring porous and porous diffuse porous. (Intermediate between Figs. 16 and 17) Unisexual: Having one sex only. (Fig. 15)
	Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24) Nut: A one-seeded fruit with a woo.dy outer covering that does not split open when the fruit is ripe. (Fig. 19)
	Oblong: Longer than broad, with the margins nearly parallel. (Fig. 20) Ovate: Having the lengthwise outline of an egg, broadest at the base. (Fig. 21) Ovoid: Eggshaped. (Fig. 22)
	Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24) Pome: The fleshy fruit of the apple family. (Fig. 23) Seed: A ripened ovule. (Fig. 23)
	Fruit: The seed-bearing product of a plant. (Figs. 6, 9, 13, 14, 18, 19, 23, and 24) Pendent: Drooping, hanging, or declining. (Fig. 24) Samara: A nut fruit with a wing, as ash. (Fig. 24)
	Spike: An elongated flower cluster. (Fig. 25)
	Stalked Bud: A bud supported by a short stem. (Fig. 26)
	Unarmed: Without prickles. (Figs. 2 and 28)
	Whorl: A circle of three or more similar parts, as leaves or flowers inserted at one point on an axis. (Fig. 29)