j 



144 



POPUi.AH FLORA. 



III. MAPLE SuBr\MiLY. Flowers geiicniUy polygamous or dioecious, regular. Petals often 

 none, but the calyx Roinotirnes petal-lik >. Stamens 4 to 12. styles 2, united below. Fruit a pair 

 of keys united at the bottom (Fig. 208). Leaves opposite. 



Flowers (litecious, small and greenish : petals none : stamens 4 or 5. Leaves pinnate, 



with 3 to 5 veiny leaflets : twii^s green, (Neijurido) Negundo. 



Flowers polygamous or perfect. Leaves simple;, palmately lobed, (Ace)') Maple. 



Buckeye. jEsculua, § Puvia, 



All wild species at the West and South : also cultivated for ornament : flowering in late spring 

 or summer. 



1. Fetid or Ohio Buckeve. Petals small, erect, pale yellow, shorter than the curved stamens ; 



young fruit prickly like Horse-chtstiiut ; a tree. River-banks, W. ../?. (jlahrti. 



2. BWEET Buckeye. Petals yellow or reddish, erect, enclosing the stamens ; fruit smooth, ^fi.favfu. 



3. Red Buckeye. Petals red, also the tubular calyx : otherwise like the last. Shrub. ^-E. Pdria. 



4. Small-FLOWEUKI) 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. and cult. A, parciflurn. 



Maple. Acer. 



* Flowers in terminal racemes, with petals, greenish, in late spring : stamens 6 to 8. 



1. Striped i\L\PLE. Bark green, with darker stripes ; leaves large, with tliree short and taper-pointed 



lo\)es ; racemes hanging. Small tree in cool woods ; common, N. A. I'ciDisiilvanifuni. 



2. ]MountainM. Bark grey; leaves 3-lolied ; racemes erect; flowers small. Shrub, N. A. spin'itum. 



3. Sycamohe M. An imported sliade-tree, with large strongly 5-lobed leaves, and large hanging 



racemes, flowering soon after the leaves ap[.ear. A. Pscudo-Phitanus. 



* * Flower's in loose clusters, yellowish-green, appearing with the leaves, in spring. 



4. NoiuVAY M. An imported shade-tree, witli leaves resembling Sugar Maj)le, but brighter green od 



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. platniiolUes, 



5. Suoah or Rock M. Leaves with 3 or mostly 5 long-pointed lobes, their edges entire except a 



few coarse wavy teetli ; flowers hanging on very slender hairy stulks, without petals ; fruit with 

 rather small wings, rijje in autumn. Tall ; tree in rich woods, and commonly planted for shade. 



A. mcchdrinum^ 

 * * * Flowers in early sjiring, 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 i)etals ; fruit wo(dly when young, with very large and 

 smooth diverging wings. Tree common on river-banks, and planted for shade. A. dasycdrpum, 



7. Red or Soft M. Leaves whitish beneath, with 3 or 5 short lobes, toothed ; flowers on v6ry 



short stalks which lengthen in fruit, with linear oblong petals, red or sometimes yellowisli ; 

 wings of the fruit small, reddish. Wet places : a common tree. A. rubl'um. 







