@. 28] CLASSIFICATION AND DESCRIPTION 81 
quite dark; slightly hairy beneath on 
the veins; prickles twin, one recurved, 
sometimes none. New growth of the 
year green, and resembling a once-pin- 
nate compound leaf and usually drop- 
ping off in the autumn like one. Leaves 
10 to 20 on a twig, 2-ranked; flowers 
and drupes nearly sessile in the axils; 
fruit small (14 in.), blood-red when ripe. 
A small tree (10 to 30 ft. high), of recent 
introduction from Syria; hardy at Phila- 
delphia, but needing some protection at 
the Arnold Arboretum, Massachusetts. Z, vulgaris. 
ORDER XV. SAPINDACE ZS. (Soapperry Famiy.) 
A large order represented in all countries, and so 
varied in its characteristics as to form several sub-orders. 
Genus 23. ZESCULUS. 
Deciduous trees or sometimes shrubs, with opposite, 
palmately compound leaves with serrated, straight-veined 
leaflets. Flowers usually conspicuous in dense terminal 
panicles. Fruit large, leathery-coated, often rough, with 
one or few large Chestnut-like but bitter seeds. Fruit 
large in midsummer, hanging on the tree until frost. 
* Fruit prickly. (A.) 
A. Leaflets usually 7; flowers widely spreading.............. 1. 
A. Leaflets 5-7, red-spotted and rough ; flowers rosy red....... 
ag Slain we Bee Hn Heimat Sere inalenA chee a Rae gS Aisculus rubicunda (1). 
A. Leaflets usually 5; flowers not much spreading........... 2. 
* Fruit smooth or nearly so. (B.) 
B, Flowers-brightired. j6ic002 ganpaaa oon cpp essa aus cae eae e 3. 
B. Flowers yellow, purplish or pinkish............ 02.2.4. 4, 
B. Flowers white, in long, slender, erect clusters............ 5. 
1. Asculus Hippocdstanum. (ComMMoN HoORSE-CHESTNUT. ) 
Leaves of 7 obovate, abruptly pointed, serrated leaflets. Flowers 
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