416 . ULMACEX. (ELM FAMILY.) 
ORDER 125. ULMACEZE. (Erw FauiLx.) 
Trees, with watery juice, alternate undivided stipulate leaves, and per- — 
fect or polygamous apetalous flowers. — Calyx 4—9-lobed. Stamens4-9, | 
inserted on the base of the calyx, erect in the bud. Ovary 1-2-celled. 
Ovules solitary, suspended. Styles 2, spreading. Fruit membranaceous 
or drupaceous. Embryo straight or curved, without albumen. Cotyle- 
dons leafy. 
Synopsis. 
* Fruit dry. Anthers extrorse. 
l. ULMUS. Flowers perfect. Ovary 2-celled. Fruit winged. 
2. PLANERA. Flowers polygamous. Ovary l;celled. Fruit wingless. 
* * Fruit a drupe. Anthers introrse. 
9. CELTIS. Flowers polygamous. Ovary l-celled. Cotyledons curved. 
1. ULMUS, L. Exo. 
Flowers perfect. Calyx bell-shaped, 4-9-cleft. Stamens 4-9, slender, ex 
serted : anthers extrorse. Ovary2-celled. Styles short. Fruit 1-celled, 1-seeded, 
surrounded by a broad membranaceous wing. Embryo straight. — Trees - 
Leaves short-petioled, mostly oblique, doubly serrate, straight-veined. Stipules - ee 
deciduous. Flowers greenish or purplish, clustered, appearing before the leave. — 
1. U. fulva, Michx. (SrierERY Erw.) Branchlets pubescent; leaves 
thick, ovate-oblong, acuminate, broadly serrate, slightly oblique at the base, vey 
rough above, pubescent beneath; calyx and short pedicels pubescent; fruit 
orbicular, pubescent on the sides, smooth on the margins, with the obtuse 
erect ; expanding buds rusty-tomentose. — Rich woods, West Florida, and north- ' 
ward. Feb. and March.— A small tree. Leaves 4/-8' long. Fruit 8" ne 
wide. Inner bark very mucilaginous. Uh 
. 9. U. Floridana, n. sp. Branchlets smooth; leaves thick, oblong-oYate 
acute or slightly acuminate, broadly serrate, oblique at the base, smooth abov’s 
more or less pubescent beneath ; pedicels very slender, somewhat racemose, 
like the calyx, smooth ; fruit orbicular, fringed on the margins, with the short 
and broad teeth erect. — Banks of the Chipola River, at Marianna, West Flo 
Feb. and March. — A tree 309 — 409 high, with brittle branches. Leaves 3/-*_ 
long. Fruit 2" 3" in diameter. Bud-scales downy on the margins. ane 
3. U. Americana, L. (Erw) Branchlets and buds smooth; leaves 
thin, obovate-oblong, or oval, oblique at the base, sharply serrate, ab dye : 
minate, smooth above, pubescent, or at length smooth beneath ; pedicels clustered, ; 
slender, smooth, like the calyx; fruit oval or obovate, downy on the margins E rs 
with the sharp teeth connivent.— Low grounds, Florida, and northward. m 
and March. — A large tree, with spreading branches. Leaves 2!-4' 1" 
Fruit 6” long ^ | m 
_ Leaves larger (3-6!) on shorter petioles; oval-oblong 2°% 
6 or half-cordate at the base, very rough ebovey PI 
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