plat ammonium

[Eng. plat ( inum ), and Chemistry: N2H ". The hypothetical base of diammonio-platinous compounds. *plăt-an, *plăt'-āne, s. [Latin platan us .] A plane-tree (q. v.). "Where clear-stemmed platans guard The outlet." Tennyson: Arabian Nights. plăt-a-nā-çě-æ, s. pl. [Lat. platan ( us ); fem. pl. adj. suff. -aceœ.] Botany : Planes; an order of Diclinous Exogens, alliance Euphorbia les. Deciduous trees or shrubs, with alternate, palmate, or toothed leaves in scarious ου sheathing stipules; flowers unisexual, amentaceous; catkins round, pendulous. Males: Stamen one, without floral envelope, but with small scales and appendages; ovary one-celled, terminated by a thick, awl-shaped style, with the stigma on one side; ovules solitary, or two, one ne suspended above the other. Nuts, by mutual compre ion, clavate. Natives of Barbary, the Levant, Cashmere, and North America. Known genus one, species six(?). (Lindley.)