140 
POPULAR FLORA. 
HI. MAPLE Subfamily. Flowers generally polygamous or dioecious, regular. Petals often 
none, but the calyx sometimes petal-like. Stamens 4 to 12. Styles 2, united below- Fruit a pair of 
keys united at the bottom (Fig. 208). Leaves opposite. 
Flowers dioecious, small and greenish : petals none : stamens 4 or 5. Leaves pinnate, 
with 3 to 5 veiny leaflets : twigs green, ( Negundo ) Negundo. 
Flowers polygamous or perfect. Leaves simple, palmately lobed, _ (Acer) Maple, 
Buckeye. AEsculus, § Pavia. 
All wild species at the West and South: also cultivated for ornament: flowering in late spring or 
summer. 
1. Fetid or Ohio Buckeye. Petals small, erect, pale yellow, shorter than the curved stamens; 
young fruit prickly like Horsechestnut; a tree. River-banks, W. AE. glabra. 
2. Sweet Buckeye. Petals yellow or reddish, erect, enclosing the stamens ; fruit smooth. JE.flava. 
3. Red Buckeye. Petals red, also the tubular calyx: otherwise like the last. Shrub. JE. Pavia. 
4. Small-flowered B. Leaflets stalked; petals white, rather spreading; stamens very long; fruit 
smooth; seed eatable, not bitter, as are the others; flowers in a long raceme-like panicle. Shrub. 
S. & cult. d. parviflora. 
Maple. Acer. 
*■ Flowers in terminal racemes, with petals, greenish, in late spring: stamens 6 to 8. 
1. Striped Maple. Bark green, with darker stripes; leaves large, with 3 short and taper-pointed 
lobes; racemes hanging. Small tree in cool woods ; common, N. A. Pennsylvanicum. 
2. Mountain M. Bark gray ; leaves 3-lobed ; racemes erect ; flowers small. Shrub, N. A. spicatum. 
4. Sycamore M. An imported shade-tree, with large strongly 5-lobed leaves, and large hanging 
racemes, flowering soon after the leaves appear. A. Pseudo-Platanus. 
* *. Flowers in loose clusters, yellowish-green, appearing with the leaves, in spring. 
4. Norway M. An imported shade-tree, with leaves resembling Sugar Maple, but brighter green on 
both sides, rounder, and with some long pointed teeth; flowers in an erect terminal corymb, with 
petals; wings of the fruit very large, diverging. A. platanoides. 
5. Sugar or Rock M. Leaves with 3 or mostly 5 long-pointed lobes, their edges entire except a 
few coarse wavy teeth ; flowers hanging on very slender hairy stalks, without petals; fruit with 
rather small wings, ripe in autumn. Tall tree; in rich woods, and commonly planted for shade. 
A. saccharinum. 
*■ # * Flowers in early spring, considerably earlier than the leaves, on short pedicels, in small 
umbel-like clusters from lateral leafless buds : stamens generally 5 : fruit ripe and falling in early 
summer. 
6. White or Silver M. Leaves very deeply 6-lobed, cut and toothed, white beneath; flowers 
greenish-yellow, short-stalked, without petals ; fruit woolly when young, with very large and 
smooth diverging wings. Tree common on river-banks, and planted for shade. A. dasycarpum. 
7. Red or Soft M. Leaves whitish beneath, with 3 or 5 short lobes, toothed; flowers on very 
short stalks which lengthen in fruit, with linear-oblong petals, red or sometimes yellowish - 
wings of the fruit small, reddish. Wet places : a common tree. A. rubruw 
