C. alnifòlia.

2. Clèthra alnifòlia, L. (Common Sweet Pepper-bush.) Leaves wedge-obovate, sharply serrate near the apex, entire near the base, straight-veined, smooth, green on both sides. Racemes erect, often compound, with bracts shorter than the flowers and with smooth filaments. This is a shrub rather than a tree; abundant in wet places east of the Alleghanies. Occasionally cultivated for its sweet-scented flowers.

Order XXVI. SAPOTÀCEÆ.

(Sapodilla Family.)

A small order, mainly of tropical plants, here including one genus found only in the southern part of our range.

Genus 54. BUMÈLIA.

Leaves simple, alternate, entire, sub-evergreen, exstipulate; branches often spiny. Flowers small, whitish, usually crowded in fascicles. Fruit a black cherry-like drupe with a 2- to 3-celled nut. Shrubs and trees of the Southern States. Two species (although hardly trees) are found far enough north to be included in this work.

* Leaves rusty-woolly beneath 1.
* Leaves smooth or slightly silky beneath 2.