GLEDITSCHIA (named after Gottlieb Gleditsch, of Leipsic, 1714-1786, Director of Botanic Gardens at Berlin). SYN. Gleditsia. ORD. Leguminosae. A genus comprising about half-a-dozen species of ornamental, mostly hardy, deciduous trees, inhabiting temperate or sub-tropical Asia and North America (one of them tropical African). Flowers greenish, disposed in spikes. Leaves abruptly pinnate and bipinnate on the same tree. Branches supraaxillary, frequently converted into branched spines. The species are of easy culture in almost any soil. Propagated by seeds, obtained from their natural habitats, and sown in March, about 1in. deep. GLEDITSCHIA horrida (horrid). A synonym of GLEDITSCHIA sinensis. GLEDITSCHIA monosperma (one-seeded). Water Locust. fl. greenish. Summer. l., leaflets ovate-oblong, acute; spines slender, few, usually trifid. h. 30ft. to 40ft. United States, 1723. GLEDITSCHIA sinensis (Chinese). fl. greenish. Summer. l., leaflets ovateelliptic, obtuse; spines robust, conical, rameal ones simple or branched, cauline ones in fascicles, branched. h. 30ft. to 50ft. China, 1774. SYN. GLEDITSCHIA horrida. GLEDITSCHIA triacanthos (three-spined).* Honey Locust. fl. greenish. Summer. l., leaflets linear-oblong, lucid; spines robust, compressed at the base, but cylindrically conical at the apex, simple or trifid. h. 30ft. to 50ft. United States, 1700. There are several varieties of this fine tree, including an unarmed one, also one with a pendulous habit. (W. D. B. ii. 138.)