MALPIGHIACEiE. (MALPIGHIA FAMILY.) 81 



neath ; flowers umbellate-corymbed, appearing with the leaves ; calyx bell-shaped, 

 fringed on the margin, nearly as long as the stamens ; petals none. — Hith soil, 

 chiefly in the upper districts, and northward. April and May. — A large tree. 

 Leaves 3' -5' wide. 



Var. Ploridanum. Leaves truncate or slightly cordate at the base, with 

 3-5 obtuse and obscurely 3-toothed lobes ; flowers umbellate, appearing before 

 the leaves ; calyx short, cup-shaped, hairy, one third as long as the stamens. — 

 TJplsind woods. Middle Florida. March and April. — A small tree. Leaves, 

 flowers, and fi-uit scarcely half as large as in the ordinary form. 



* * * Flowers on short and erect clustered pedicels, developed from lateral bads, and 

 appearing before the leaves : fruiting pedicels Iqng and drooping. 



4. A. dasycarpum, Ehrh. (Silvek Maple.) Leaves cordate, 3-5- 

 lobed, sharply toothed and serrate, white beneath ; petals none ; samara large, 

 woolly when young. — Banks of rivers, Florida to Mississippi, and northward. 

 February and March. — A tree 30° - 50° high, with soft wood. Flowers yel- 

 lowish. 



5. A. rubrum, L. (Red or Swamp Maple.) Leaves 3-5-lobcd, or 

 undivided, smooth or pubescent, either cordate or rounded, or sometimes acute 

 at the base, toothed and serrate, white beneath ; petals oblong or linear ; samara- 

 small, smooth. — Swamps, Florida to Mississippi, and northward February and 

 March. — A small tree. Flowers and fruit red. 



2. WEGUNDO, Mcench. Ash-leaved Maple. 



Flowers dioecious. Calyx minute. Petals none. Stamens 4-5, hypogynous. 

 — A small tree, with smooth green bark. Leavespinnately 3- 5-foliolate, the leaf- 

 lets ovate or oblong, lobed or toothed. Flowers small, greenish ; the sterile ones 

 on long and drooping clustered pedicels, the fertile ones racemose, both from 

 lateral buds appearing with or before the leaves. 



1. If. aceroides, Moench. (Acer Negundo, L ) Eiver-banks, Florida 

 and northward. March and April. 



Ordek 44 MALPIGHIACE^. (SIalpighia Familt.) 



Trees or shrubs, with opposite simple dotless and mostly stipulate leaves, 

 and regular racemose or corymbose flowers on usually jointed pedicels. — 

 Calyx 5-parted. Petals 5, alternate with the calyx-lobes, unguiculate, 

 sometimes wanting. Stamens 10, alternate with the petals, and inserted 

 with them into a hypogynous disk : anthers roundish. Ovary solitary, 

 mostly 3-lobed, consisting of three more or less united carpels. Styles 3, 

 distinct or united. Fruit composed of one to three 1-seeded cells or car- 

 pels. Seeds pendulous, without albumen. Cotyledons thick or leafy. 



