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POPULAR FLORA. 
III. 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. JEsculus , § 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. AE.jlwva . 
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. A. parvifibra. 
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. 
%. Sycamore M. An imported shade-tree, with large strongly 5-lobed leaves, and large hanging 
racemes, flowering soon after the leaves appear. A. Pseudo- Pldtanus. 
* * 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 5-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 r 
wings of the fruit small, reddish. Wet places: a common tree. A. rubrum 
