X 
418 JUGLANDACEJ. (WALNUT FAMILY.) 
2-celled, adnate to the truncated connective. Ovaries numerous, obconi- 
eal, hairy at the base. Ovules 1 — 2, orthotropous, pendulous. Style sub- 
ulate. Nut 1-seeded. Seed cylindrical. Embryo in the axis of scarce 
fleshy albumen. — Flowers intermixed with copious club-shaped scales. — 
Consisting of the single genus. 
1. PLATANUS, L. Prane-Trer. Sycamore. 
1. P. occidentalis, L.— Leaves (4!-9/ wide) round-cordate, angularly 
lobed and toothed, covered when young with dense whitish down, soon smooth ; 
stipules toothed ; heads pendulous (8’/-—12" in diameter). — River-banks, Flor- 
ida, and northward. March and April.—A large tree, with the white bark 
separating in thin plates. ° 
Order 127. JUGLANDACEJE. (Warxvur Famtyr.) 
Trees, with alternate odd-pinnate exstipulate leaves and moncecious 
apetalous or minutely petalled flowers. Sterile flowers in pendulous 
aments. Calyx 2—6-parted, the stamens few or numerous. Fertile flow- 
ers single or clustered. Calyx 3-5-parted, the tube adherent to the 
incompletely 2 — 4-celled ovary. Fruit drupaceous, with a bony endocarp. 
Seed 4lobed, without albumen, orthotropous. . Cotyledons oily, 2obed. 
Radicle short, superior. 
l CARYA, Nutt. Hickory.  ProxvT. 
Aments of the sterile flowers mostly three together, on a common peduncle, 
lateral. Calyx unequally 3-parted. Stamens 3-6. Fertile flowers 
Calyx 4-parted. Petals none. Stigma large, 4-lobed. Nut smooth, 4- 
incompletely 4-celled; the coriaceous epicarp (husk) partly or comp 
4-valved. — Trees, mostly with scaly buds. ‘Leaflets serrate. Fruit roundish. 
* Epicarp very thick, 4-valved : seed thick, edible. 
1. C. alba, Nutt. (SurLL-sAnk Hickory.) Leaflets 5-7 (mostly 5), 
lanceolate-oblong, or the upper ones obovate-oblong, acuminate, pubescent a4 
neath ; fruit depressed-globose ; nut roundish, thin-shelled, compressed, tange 
‘slightly pointed. — Rich woods in the upper districts, Georgia, and n 
March and April. — A large tree, with shaggy and scaly bark. 
. 2. C. sulcata, Nutt. Leaflets 7 - 9, obovate-oblong, acuminate, di 
of Carolins, 
beneath; fruit oval, 4-angled above; nut oblong, thick-shelled, co 
pointed, slightly compressed. — Rich woods in the upper districts 
Elliott, and northward. March and April.— A large tree, with scaly barke — 
3. C. oliveeformis, Nut. (Prcaw-wur.) Leaflets 13-15, lanceol® 
