MALPIGUIACE^. (mALPIGHIA FAMILY.) 81 



neatli; floivers unibellate-corymbed, appearing Mitli the leaves ; calyx bell-shaped, 

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

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

 Leaves 3' -5' wide. 



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

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

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

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

 flowers, and fruit scarcely half as large as in the ordinary form. 



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

 appearing hffore the leaves : fruitimj pedicels lonrj and drooping. 



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

 lobed, sharp])- toothed and serrate, white beneath ; petals none ; samara large, 

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

 February and Jlarch. — A tree 30° -50° high, with softwood. Flowers yel- 

 lowish. 



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

 undivided, smootli 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 I'ed. 



2. NEGUNDO, Mocnch. Ash-leaved Mapl::. 



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

 — A small tree, with smooth green bark. Leaves pinnately 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. N. aceroides, Mtench. (Acer Negundo, L) River-banks, Florida 

 and northward. March and April. 



Order 44. MALPIGHIACE^. (Malpiohia Family.) 



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, 

 mo.stly 3-lobcd, 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. 



