LARDIZABALACEAE. 



53 



DECAISNEA. 

 (Family Lardizabalaceae). 



Loosely branched large gla- 

 brous shrubs: deciduous. Twigs 

 coarse, terete: pith large, homo- 

 geneous, roundish, pale. Buds 

 solitary, sessile, large, ovoid-acu- 

 minate, suberect or appressed, ob- 

 tusely somewhat 2-edged, with 2 

 scales, the end-bud lacking. Leaf- 

 scars alternate, low, shield-shaped, 

 very large, with 7-9 bundle-traces: 

 stipule-scars lacking. 



Decaisnea and the two follow- 

 ing genera, with four others, are 

 now admitted to constitute a nat- 

 ural family, named after the ge- 

 nus Lardizabala. The affinities of 

 the plants are such, however, that 

 those now placed in the Lardiza- 

 balaceae have found earlier clas- 

 sification in the related families 

 Berberidaceae and Menisperma- 



Twigs buff: buds glaucous, coarsely wrinkled. D. Pargesii. 



