NUTMEG HICKORY (_Hicoria myristicæformis._ Michaux).--Leaflets five to seven, ovate-lanceolate, pointed, quite smooth on both sides, the terminal leaflet sessile, not stalked; fruit oval; husk wrinkled and rough, thick; nut small, oval, short-pointed; the shell furrowed and very hard, and of a brownish color marked with white lines. Michaux says: "The shell is so thick that it constitutes two-thirds of the volume of the nut, which, consequently, is extremely hard, and has a minute kernel. It is inferior to the pignut." A medium-size tree with slender branches, found in a few localities in South Carolina, near swamps and borders of streams, and westward to Arkansas, where it reaches its greatest development. This hickory has been so rarely seen by botanists that Michaux's specific name, given it more than eighty years ago, has fared a better fate than those of our more common and abundant species; consequently, I have only one synonym to record, viz.: _Carya amara_, var. _myristicæformis_, Cooper, in Smithsonian Report, 1858. WATER HICKORY, SWAMP HICKORY, BITTER PECAN (_Hicoria aquatica._ Michaux).--Leaflets nine to thirteen, generally eleven, narrow and obliquely lanceolate-pointed, slightly serrate, thin and smooth; fruit globular or somewhat egg-shaped, four-ribbed; husk thin, dividing at maturity down to the base; nut thin-shelled, four-angled; kernel much wrinkled and very bitter. This is closely allied to if not a more Southern form of our common bitternut. A small tree in swamps and river bottoms from North Carolina south to Florida, and west to Texas. Synonyms: _Juglans aquatica_, Michaux. _Hicorius integrifolia_, Rafinesque. _Carya aquatica_, Nuttall. _Carya integrifolia_, Sprengel. [Illustration: FIG. 52. LARGE, LONG PECAN NUT.] [Illustration: FIG. 53. OVAL PECAN NUT.]