SAPINDACE.E. (SOAP-BERKY FAMILY.) 87 



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

 than the tubular-campauulate calyx ; 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. April -May. 

 — A shrub or small tree. Flowers pale yellow. JE. discolor, Pursh, is a 

 forna of this species with more strongly serrate leaflets, and flesh-colored or 

 dull purple flowers. 



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

 of the nearly similar petals longer than the obconical calyx ; panicle race- 

 mose, very long; leaflets 5-7, oval-obovate, tomentose beneath. — Upper 

 districts of Georgia and South Carolina. April-May. — Shrub 3°-9° high. 

 Flowers white. Stamens 6 or 7. 



6. ACER, L. Maple. 



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

 Leaves simple, palmately lobed. Flowers clustered or racemose. 

 * Flowers in terminal racemes, appearing after the leaves. 



1. A. Pennsylvanicum, L. (Striped Maple.) Racemes simple, 

 drooping; flowers (15-25) large; petals obovate ; leaves slightly cordate, 

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

 Banks of mountain streams, Georgia and Carolina. May. — A shrub or 

 small tree, with striped bark. Flowers greenish. 



2. A. spieatum, Lam. (Mountain Maple.) Racemes compound, 

 erect ; flowers small, very numerous ; petals linear-spatulate ; leaves cordate, 

 3-lobed, coarsely serrate ; samara small. — With the preceding. — Shrub 6°- 

 10° high. Leaves pubescent beneath. 



* * Flowers on long and drooping umbellate or corymbose pedicels, developed 



from lateral and terminal buds. 



3. A. saccharum, Marsh., var. barbatum, Trelease. Leaves 2'-4' 

 wide, paler beneath, truncate, or cordate with a shallow sinus, 3-lobed, the 

 lobes entire, contracted and acuminate above the middle, slender-petioled ; 

 wings 6" -9" long, divergent, the pedicels long and mostly dichotomous; 

 calyx and ovaries bearded. — Rocky banks, Georgia, Tennessee, and west- 

 ward. March- April. 



4. A. Floridanum, Chaprn. Leaves smooth and shining above, downy 

 and canescent beneath, 2' - 4' wide, truncate and slightly cordate at the base, 

 3 - 5-lobed, the lobes short, obtuse, and mostly 3-toothed ; wings nearly erect ; 

 calyx bearded. (Var. acuminatum, Trelease, the leaves green on both sides, 

 the lobes acuminate.) — Rocky woods, Florida and westward, the var. in the 

 upper districts. 



* * * Flowers on short a7id erect clustered pedicels, developed from lateral buds, 



and appearing before the leaves: fruiting pedicels long and drooping. 



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

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

 woolly when young. — Banks of rivers. Feb. - March. — A tree 30° - 50° high, 

 with soft wood. Flowers yellowish. 



