2. A. spicàtum, Lam. (MOUNTAIN M.) Leaves downy beneath, 3- (or slightly 5-) lobed, coarsely serrate, the lobes taper-pointed; _racemes upright, dense_, somewhat compound; _petals linear-spatulate_; fruit with small erect or divergent wings.--Moist woods, with the same range as n. 1. June.--A tall shrub, forming clumps. [*][*] _Flowers in nearly sessile terminal and lateral umbellate-corymbs, greenish-yellow, appearing with the leaves._ 3. A. saccharìnum, Wang. (SUGAR or ROCK M.) Leaves 3--5-lobed, with rounded sinuses and pointed sparingly sinuate toothed lobes, either heart-shaped or nearly truncate at the base, whitish and smooth or a little downy on the veins beneath; flowers from terminal leaf-bearing and lateral leafless buds, drooping on very slender hairy pedicels; calyx hairy at the apex; petals none; wings of the fruit broad, usually slightly diverging.--Rich woods, especially northward and along the mountains southward. April, May.--A large and handsome tree. Var. nìgrum, Torr. & Gray. (BLACK SUGAR-M.) Leaves scarcely paler beneath, but often minutely downy, the lobes wider, often shorter and entire, the sinus at the base often closed.--With the ordinary form; quite variable, sometimes appearing distinct. [*][*][*] _Flowers in umbel-like clusters arising from separate lateral buds, and much preceding the leaves; stamens 3--6._ 4. A. dasycárpum, Ehrh. (WHITE or SILVER M.) _Leaves very deeply 5-lobed_ with the sinuses rather acute, silvery-white (and when young downy) underneath, the divisions narrow, cut-lobed and toothed; flowers (greenish-yellow) on short pedicels; _petals none; fruit woolly when young_, with large divergent wings.--River-banks; most common southward and westward. March--April.--A fine ornamental tree. 5. A. rùbrum, L. (RED or SWAMP M.) _Leaves 3--5 lobed_, with acute sinuses, whitish underneath; the lobes irregularly serrate and notched, acute, the middle one usually longest; _petals linear-oblong_; flowers (scarlet, crimson, or sometimes yellowish) on very short pedicels; but the _smooth fruit_ on prolonged drooping pedicels.--Swamps and wet woods. April.--A small tree, with reddish twigs; the leaves varying greatly in shape, turning bright crimson in early autumn. 4. NEGÚNDO, Moench. ASH-LEAVED MAPLE. BOX-ELDER. Flowers diœcious. Calyx minute, 4--5-cleft. Petals none. Stamens 4--5. Disk none.--Sterile flowers in clusters on capillary pedicels, the fertile in drooping racemes, from lateral buds. Leaves pinnate, with 3 or 5 leaflets. Fruit as in Acer. (Name unmeaning.) 1. N. aceroìdes, Moench. Leaflets smoothish when old, very veiny, ovate, pointed, toothed; fruit smooth, with large rather incurved wings.--River-banks, W. New Eng. to Dak., south and westward. April.--A small but handsome tree, with light-green twigs, and very delicate drooping clusters of small greenish flowers, rather earlier than the leaves. 5. STAPHYLÈA, L. BLADDER-NUT.