118 sapindaCEtE. (soapberry family.) 



5. A. rubrum, 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-oblonfj ; flowers (scarlet, crimson, 

 or sometimes yellowish) on very short pedicels; but the smooth fruit on pro- 

 longed drooping pedicels. — Swamps and wet Avoods. April. — A small tree, 

 with reddish twigs; the leaves varying greatly in shape, turning bright crim 

 son in early autumn. 



4. NEGUNDO, Moench. Ash-leaved Maple. Box-Elder. 



Flowers dioecious. 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. (Xame unmeaning.) 



1. N. aceroides, Moench. Leaflets smoothish when old, very veiny, 

 ovate, pointed, toothed ; fruit smooth, with large ratlier incurved wings. — 

 River-banks, W. New Eng. to the Dakotas, 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. STAPHYLEA, L. Bladder-Nut. 



Calvx deeply 5-parted, the lobes erect, whitish. Petals .5, erect, spatulate, 

 inserted on the margin of the thick perigynous disk which lines the base of 

 the calyx. Stamens .5, alternate with the petals. Pistil of 3 several-ovuled 

 carpels, united in the axis, tlieir long styles lightly cohering. Pod large, 

 membranaceous, inflated, 3-lobed, 3-celled, at length bursting at the sumrriit ; 

 the cells containing 1-4 bony anatropous seeds. Aril none. Embryo large 

 and straiglit, in scanty albumen , cotyledons broad and thin. — Upright shrubf/ 

 with opposite pinnate leaves of 3 or 5 serrate leaflets, and white flowers iri 

 drooping raceme-like clusters, terminating the branchlets. Stipules and stipels 

 deciduous. (Name from (TTa^vXri, a cluster.) 



1. S. trifdlia, L. (American Bladder-nut.) Leaflets 3, ovate, pointed. 

 — Thickets, in moist soil. May. — Shrub 10° high, with greenish striped 

 branches. 



Order 30. ANACARDIACE^. (Cashew Family.) 



Ti-ees or shrubs, with resijious or milky acrid Juice, dotless alternate 

 leaves^ and small, often polygamous, regular^b-merous fioioers, but the ovary 

 l-celled and l-ovuled, with 3 styles or stigmas. — Petals imbricated in the 

 bud. Fruit mostly drupaceous. Seed without albumen, borne on a 

 curved stalk that rises from the base of the cell. Stipules none. Juice 

 or exhalations often poisonous. 



1. RHUS, L. Sumach. 



Calyx small, 5-parted. Petals 5. Stamens .5, inserted under the edge or 

 between tlie lobes of a flattened disk in the bottom of the calyx. Fruit small 

 and indehiscent, a sort of dry drupe. — Leaves usually compound. Flowers 

 greenish-white or yellowish. (The old Greek and Latin name.) 



