418 .irca.ANDACKJi. (walnut iamii.v.) 



2-ci'lli(l, adiiato to the tnincatrd cfniiicctivo. Ovaries immorous, ol)eoni- 

 cal, halrv al the base. Ovules 1 - 2, orth<)twi)oiis, ])eiHliilous. Style sub- 

 ulate. Nut l-seeded. Sei-d eylindrical. Endjiyo in the axis of scarce 

 fleshy albumen. — Flowers intermixed with cojjious club-shaped scales. — 

 Consisting of the single genus. 



1. PLATANUS, L. Tlane-Tree. Svcamore. 



1. P. OCCidentalis, I^. — Leaves (4' -9' wide) round-cordato, angularly 

 lobcd and tootlictl, lovcad wiicn young with dense whitish down, soon smooth ; 

 stipules tootlicd ; heads ihmuIuIous (8''- 12" in diameter) — River l)anks, ¥lor 

 ida, and northward. March and April. — A large tree, with the white bark 

 separating in tliin plates. 



Order 127. JUGLANDACEiE. (AValnut Family.) 



Trees, with alternate odd-pinnate exstipulate leaves and monoecious 

 apetalous or minutely petalled flowers. Sterile flowers in pendulous 

 aments. Calyx 2 - 6-parted, the stamens few or numerous. Fertile (low- 

 ers single or clustered. Calyx 3 - o-parted, the tube adherent to the 

 incompletely 2 - 4-celled ovary. Fruit drupaceous, with a bony endocarp. 

 Seed 4-lobed, Avithout albumen, orthotropous. Cotyledons oily, 2-lobed. 

 Radicle short, superior. 



1. CARYA, Nutt. IIiCKOuy. Pigxut. 



Aments of the sterile flowers mostly three together, on a common peduncle, 

 lateral. Caly.K unequally 3-parted. Stamens 3-6. Tcrtile flowers terminal. 

 Calyx 4-parted. Petals none. Stigma large, 4dobed. Nut smooth, 4 - 6-angled, 

 incompletely 4-cclled ; the coriaceous epicarp (husk) partly or comjjletely 

 4-valved. — Trees, mostly with scaly buds. Leaflets serrate. Fruit loundish. 

 * Epicarp verij thick, 4-valved : seid thick, edible. 



1. C. alba, Nutt. (Shell I5AUK Hickory.) Leaflets 5-7 (mostly 5), 

 lanceolate-oiilong, or the upper ones obovate-oblong, acuminate, pubescent he 

 neath ; fruit depressed-globose ; nut roundish, tliin-siiclled, compressed, 4-anglcd, 

 slightly pointed. — Rich woods in the upper districts, Georgia, and northward. 

 March and April. — A large tree, with shaggy and scaly bark. 



2. C. Stllcata, Nutt. Leaflets 7-9, obovate-oblong, acuminate, pubescent 

 beneath; fruit oval, 4-angled above; nut oblong, thick-shelkd, conspicuously 

 pointed, sliginly compressed. — Rich woods in the upper districts of Carolina, 

 Elliott, and northward. March and April. — A large tree, with scaly bark. 



3. C. Olivseformis, Nutt. (Pecan-nut.) Leaflets 13-15, lanceolate- 

 oblong, serrate falcate, acuminate ; nut olive-shaped, smooth, thin-shelled, some- 

 what 4-anglcd. — River-bottoms, Mississippi, northward and westward. — A 

 large tree with smoothish bark. 



