80 ACERACEyE. (mAPLE FAMILY.) 



petals as long as the tubular calyx ; panicle oblong ; leaflets 5, varying from 

 lanccoliitc to oval, short -ivcuminate, finely serrate, smooth, or nearly so, on both 

 surfaces — Rich soil, Florida to North Carolina, and westward. March -May. 

 — A shrub, or in the upper districts, a small tree. Flowers red. 



3. ^, flava, Ait. Stamens included ; claws of the lateral petals longer 

 than tlic tul)uhu--campanulate caly.\ ; panicle oblong, pubescent ; leaflets 5-7, 

 obovate-oblong, acuminate, finely serrate, pubescent beneath. — Rich soil, in the 

 middle and upper districts of Georgia to North Carolina and northward. April 

 and May. — A shrub or small tree. Flowers pale yellow. JE. discolor, Pursh, 

 is a form of this species with more strongly serrate leaflets, and flesh-colored 

 or dull purple flowers. 



4. ^. parviflora, Walt. Stamens 3 times as long as the corolla; claws 

 of the nearly similar petals longer than the obconical calyx ; panicle racemose, 

 very long; leaflets 5 -7, oval-obovate, tomentose beneath. {jR macrostachya, 

 Michx) — Upper districts of Georgia and South Carolina. April and May. — 

 Shrub 3° - 9° high. Flowers white. Stamens 6 or 7. 



Order 43. ACERACE^. (Maple Family.) 



Trees or shrubs, with opposite palmatcly lobed or pinnate exstipulate 

 leaves, and regular mostly polygamous or diojcious flowers, with an imbri- 

 cated aestivation. — Calyx 4-9-lobed. Petals as many as the lobes of the 

 calyx, or none. Stamens 4-12, inserted with the petals into a l>y[)Ogy- 

 nous disk. Ovary 2-celled, with 2 pendulous amphitropous ovules in each 

 cell, forming in fruit a double 2-scedt'd samara. Styles 2. Seeds with 

 little or no albumen. Embryo folded or spirall}' coiled. 



1. ACER, L. Maplk. 



Flowers polygamous. Petals usually 5 - 8, or none. Stamens 4 - 12. — Leaves 

 simple, palmately lobed. Flowers clustered or racemose. 



* Floicfrs in terminal racemea, apprarimj ofler the leaves. 



1. A. Pennsylvanicum, L. (Stuh-kd Mapi.e ) Tlacemcs simple, 

 drooping ; flowcis (l.") -2.")) large ; petals obovatc ; leaves slightly cordate, with 

 3 acuminate finely serrate lobes ; samara large. (A. striatum, Lam.) — Banks 

 of inouiitain streams, Georgia and northward. May. — A shrub or small tree, 

 with striped bark. Flowers greenish. 



2. A. spicatum, Lam. (Mountain Maim.k.) Racemes compound, 

 erect; flowers small, verj' numerous; petals linear-spatulato ; leaves cordate, 

 3-lol<cd, coarsely serrate ; samara small. — "With the preceding. — Shrub C°- 10° 

 high. Leaves pubescent beneath. 



* * Flowers on lowj and drooping umbellate or con/mbose prdiccJa, dm loped from 

 laltral and terminal iitd.f. 



3. A. saccharinum, Wang. (Sugar Matm-. ) Leaves cordate, with 

 8-5 acute or acuminate sinuate-toothed lobes, paler and slightly imbesecnt 1)C- 



