824 ACERACEAE 
sometimes broader than long, 1-3 dm. broad, deep-green, Mes 3 nearly erect 
acuminate lobes, sometimes with 2 additional lobes, finely or doubly ds. 
glabrous above, finely pubescent beneath, rounded or Pa: ordate at Eos bas 
racemes relatively few-flowered: pedicels cee spreadin > pet cau 
pale-green or yellowish-green, obovate, slightly acu iN ru elliptic sepals: 
stamens included: fruit pa P beu 3.5—5.5 em. broad, glabrous, the wings 
h din angle of about 120 degr ees.— (MOOSE = 
MOUNTAIN-ALDER. STRIP ee OOD.  STRIPED- ces —Rocky woods, Blue 
Ridge and more norther a provinces, Ga. to Ont. and N. S.—Spr.—The heart- 
wood resembles that of A. spicatum 
2. SACCHARODENDRON Nieuwl. Trees or shrubs. Leaf-blades 3-5- 
ed. Flowers in terminal umbels, somewhat p appearing with the 
leaves, andromonoecious, long- Lp Calyx campanu late, the lobes mostly 
shorter than the tube. Petals none. Stamens exserted: anthers Mc ah or 
oval. cian mostly oe un the style.—About 6 species, North A 
can.—MaAp AcERS.—The sap of some of the species, partiontaniy of 
A nigrum a 8. barbatum, is rich in sugar—the source of maple sugar. 
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Leaf-blades glabrous or sparingly pubescent and glaucous beneath. 
Leaf-blades with 3-5 acute or acuminate, often toothed lobes. 1. S. barbatum. 
Leaf-blades with 3 blunt few-toothed lobes 2. S. floridaum. 
Leaf-blades dn. A onen. not ET 
Leaf-blades green eath: campanulate : samaras green. 3. S. nigrum. 
Leaf-blades greenish, tinged ith red beneath: calyx hemi- 
spheric: samaras red. 4, S. leucoderme. 
1. S. barbatum (Michx.) Nieuwl. Tree sometimes 40 m. tall, the bark usu- 
ally RUE 2 coarse seales at maturity, the twigs red- brown: leaf- blades 
firm tly with 5 sinuate-toothed lobes, 
8-15 bn in diameter, deep- green above, pale 
or Lis beneath, with an open shallow 
sin flower- “clusters yellowish Breen: calyx 
aak ate, about sepals d 
tuse: samaras slightly ere dae 3. 5—4 c 
ng. sh. A. Pur 
batum Michx.] — (SUGAR-MAPLE. HARD- 
MAPLE.  ROCK-MAPLE. SUGAR-TREE. ) —Rich 
woods, rocky slopes, and stream-banks, vari- 
ous provinees, rarely Coastal Plain, Ga. to 
Tex, Man. and Newf.—S r.—The light- 
brown heart wood is elose-grained, tough, 
hard, and strong.—Acer saccharum Marsh. is 
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. S. floridanum (Chapm.) Nieuwl. Tree rarely over 18 m. tall, the bar 
rather close, but rough in age, chalky-white: leaf-blades E broader than 
long, 5-6 em. broad, with 3-5 blunt undulate lobes about as long as the body, 
deep-green above, n end more or less pubescent beneath, truncate and 
shallowly cordate at the base: flower- ioris yellowish: pedicels sparingly 
pubescent at least oo the fruit mature d on campanulate, 1-1.5 mm. long: 
samaras green, 1.5-2 em. long, spa unl. pu bescent near the em ee ‘rather 
widely spreading. [Acer s saccharinum floridanum Chapm A floridanum 
Pax]-——(HAMMOCK-MAPLE.)—Rich woods, bluffs, and hammo ocks, Coastal Plain 
and rarely adj. i aa Fla. to La. and S. C. Naturalized in N. C. Reported 
from Va.—Wint.-spr. 
3. S. nigrum (Michx. f.) Small. Tree sometimes 30 m. tall, the bark dark, 
ee flaky, the twigs light orange-brown: leaf-blades a broader than 
