fruit-cluster, 26.

_Tomentose._ Covered with matted, woolly hairs, 23.

_Toothed._ With teeth or short projections.

_Tree._ A plant with a woody trunk which does not branch near the
ground, 11.

_Truncate._ With a square end as though cut off, 22.

_Twice-pinnate._ Applied to a leaf which is twice divided in a pinnate
manner, 20.

_Twice-serrate_, 22. _Twice-crenate_, 22.

_Two-ranked._ Applied to leaves when they are flattened out in two ranks
on opposite sides of a stem, 18; also applied to spray when it branches
out in one plane, 19.

_Umbel._ A cluster of flowers or fruit having stems of about equal
length, and starting from the same point, 26.

_Umbellate._ Like an umbel.

_Valvate._ Touching edge to edge, 28.

_Veining of leaves_, 19.

_Veinlets._ The most minute framework of a leaf, 19.

_Veins._ The smaller lines of the framework of a leaf, 19.

_Wedge-shaped._ Shaped like a wedge; cuneate, 21.

_Whorl._ In a circle around the stem, as the leaves of a plant, 18.

_Wings._ A blade or leaf-like expansion bordering a part, as a fruit or
stem, 28.

_Winged._ With wing-like membranes.

_Winter study of trees_, 29.

_Wood_, 12.

INDEX TO PART III.

Abele-tree, 168.

Abies, 183-187.

Acanthopanax, 110.

Acer, 84-88.

Acuminate-leaved Clethra, 117.

AEsculus, 81-83.

African Cedar, 190.

Ailanthus, 76.

Albizzia, 96.

Alcock's Spruce, 181.

Alder, 147, 148.

Alleghany Plum, 98.

Alnus, 147, 148.

Alternate-leaved Cornel, 112.

Amelanchier, 107.

Anacardiaceae, 89.

Angelica-tree, 109.

Angiospermae, 62.

Anonaceae, 68.

Apple, 101.

Aralia, 109, 110.

Araliaceae, 109.

Araucaria, 190.

Arbor-vitae, American, 194.
Chinese, 194.
Eastern, 194.
Giant, 194.
Hatchet-leaved, 194.
Japanese, 196.
Weeping, 195.

Arrow-wood, 114.

Ash, Black, 124.
Blue, 124.
European, 124.
Flowering, 125.
Green, 123.
Red, 123.
Water, 124.
Weeping, 125.
White, 123.

Ash-colored Willow, 167.

Ash-leaved Maple, 89.

Asimina, 68.

Aspen, 168.

Austrian Pine, 175.

Baccharis, 115.

Bald Cypress, 192.

Balm of Gilead, 170.

Balsam-fir, 183, 184.

Balsam-poplar, 170.

Barren Oak, 158.

Bartram's Oak, 152.

Basket-oak, 154.

Basswood, 72, 73.

Bay, Red, 130.

Bay Willow, 164, 165.

Beaked H