Leguminosae. 



143 



SOPIIOICA. 



(Family Leguminosae). 



Small trees or shrubs for our 

 purpose: deciduous or exception- 

 ally evergreen. Twigs moderate, 

 swollen at the nodes, more or 

 less zig-zag with elongated inter- 

 nodes, subterete or angled: pith 

 somewhat 3-sided, continuous, pale 

 or greenish. Buds woolly, super- 

 posed, sessile, sometimes small 

 and at first concealed by the leaf- 

 scar, the end-bud lacking. Leaf- 

 scars usually alternate, raised, 

 from nearly round or deltoid be- 

 coming narrowly U-shaped by 

 tearing of the articular mem- 

 brane: bundle-traces 3: stipule- 

 scars or remnants minute, at the 

 upper angles of the leaf-scar. 



Winter-character references: 

 Sophora japonica. Schneider, f. 

 91; Shirasawa, 238, pi. 2. 



1. Buds covered by the articular membrane: twigs green. 2. 

 Buds evident in the axils. 4. 



2. Native of the Southwest. (2). S. affinis. 

 Cultivated rather generally. 3. 



3. Not weeping. (Pagoda Tree). S. japonica. 

 Weeping. S. japonica pendula. 



4. Unarmed: twigs greenish: evergreen. (3). S. secundiflora. 

 With axillary spines: twigs purple. (1). S. viciifolia. 



