Celtis pumila var. georgiana Sarg.
Leaves ovate, acute or acuminate, obliquely rounded at base, entire or sharply serrate, especially on vigorous leading shoots, thin, dark green and rough on the upper surface, pale and more or less pubescent or nearly glabrous along the midrib and veins below, 1½′—2½′ long and ¾′—1½′ wide; petioles slender, pubescent, ⅙′—¼′ in length. Flowers on pubescent pedicels; calyx divided into usually five lanceolate acuminate lobes; the disk pubescent. Fruit on pubescent pedicels as long or slightly longer than the petioles, subglobose, reddish purple, often covered with a glaucous bloom, ½′ in diameter; nutlet covered with conspicuous reticulate ridges.
A shrub or small tree occasionally 30° high, with slender dark red-brown pubescent branchlets, light red-brown and sometimes bright red-brown before the end of their first year.
Distribution. Piedmont region of North and South Carolina, central Georgia to western Florida; and Dallas County, Alabama; in southern Missouri, and southern Illinois.
4. TREMA Lour.
Unarmed trees and shrubs with watery juices and terete branchlets. Leaves alternate, often two-ranked, serrate, penniveined, three-nerved from the base, short-petiolate, persistent; stipules lateral, free, usually small, caducous. Flowers apetalous, small, monœcious, diœcious or rarely perfect, in axillary cymes; calyx five or rarely four-parted, the lobes induplicate, valvate or slightly imbricated in the bud, or in perfect flowers more or less concave and induplicate; stamens five or rarely four, opposite the calyx-lobes and inserted on their base, occasionally present in the pistillate flower; filaments short, erect; anthers oblong, attached on the back near the base, introrse, two-celled, the cells opening longitudinally; ovary sessile, rudimentary or wanting in the staminate flower; style central, slightly or entirely divided into two linear fleshy stigmatic branches; ovule solitary, pendulous from the apex of the cell, anatropous; micropyle superior. Fruit drupaceous, short-oblong to subglobose, crowned by the persistent style; exocarp more or less fleshy; endocarp hard; seed filling the cavity of the nutlet; testa membranaceous, albumen fleshy, often scanty; embryo curved or slightly involute; cotyledons narrow; radicle incurved, ascending.
Trema, with about twenty species, is widely distributed in tropical and subtropical regions of the two hemispheres. Two species reach the coast region and the keys of southern Florida. Of these Trema mollis Lour. is a small tree, and Trema Lamarckiana Bl., which in Florida has been noticed only on Key Largo, where it grows as a small shrub, is widely distributed over the Bahamas and many of the West Indian islands.
1. [Trema mollis] Lour.
Trema floridana Britt.