176 EUPHORBIACEAE, 
SECURINEGA. 
(Family Euphorbiaceae). 
Small shrubs: deciduous. Twigs 
slender, 5-sided, glabrous: pith 
relatively large, angular, white, 
continuous. Buds rather small, 
solitary or with a small lower one, 
compressed-ovoid, with about 3 
exposed scales. lLeaf-scars alter- 
nate, minute, half-round, slightly 
raised: bundle-trace 1: stipules 
subpersistent at the sides. Most 
of the upper axils are occupied 
by scars from which flower- and 
i fruit-clusters have fallen.—Some- 
times called Acidoton. 
Though a number of large and 
important or interesting trees be- 
longing to the Euphorbiaceae oc- 
cur in the tropics, and poinset- 
tias, crotons and castor beans are 
frequent among herbaceous plants 
grown in temperate regions, An- 
drachne and Securinega, which are scarcely more than half- 
shrubs, are the only woody genera found native or cultivated 
in the North. 
Twigs olive-colored or green. (1). S. ramiflora. 
Twigs purple.  §. flueggeoides. 
Shirasawa gives winter-characters of Hxcoecaria japonica, 
245, pl. 4; Glochidion obovatum, 253, pl. 6; Mallotus japonica, 
234, pl. 1; and Stillingia sebifera, 244. These genera belong 
likewise to the Euphorbiaceae. 
