Abaliaceae. 



259 



5. 



ACANTHOPANAX. 



(Family Araliaceae). 



Shrubs or exceptionally trees, 

 usually armed with 1 to 3 prickles 

 beneath each narrow leaf-scar and 

 so likely to be mistaken for leaf- 

 spines: deciduous. Twigs ^mode- 

 rate, terete; somewhat zig-zag, 

 often forming spurs: pith mode- 

 rate, rounded, continuous, white. 

 Buds solitary, sessile, conical- 

 ovoid, with about 3 exposed thin 

 scales. Leaf-scars alternate, nar- 

 rowly crescent-shaped or U-shaped, 

 somewhat raised: bundle-traces 5, 

 small: stipule-scars lacking. Panax 

 and its compounds, following Lin- 

 naeus, are treated usually as 

 neuter for no classical reason. 

 1. Scrambling or climbing. 



A. trifoliatum. 

 Bushy or arboreous. 2. 



Trees: prickly between nodes. (Kalopanax) . A. ricinifolium. 



Loosely branched shrubs. 3. 



One or two prickles at- each node. (1). A. pentaphyllum. 



Essentially unarmed. A. sessiliflorum. 



Prickly between the nodes. 4. 



Prickles slender, numerous. 



(Eleutherococcus) . A. senticosum. 



Prickles stout and strong, fewer. 5. 



Glabrous and smooth. A. Simonii. 



Twigs pubescent or scabrous. A. Henryi. 



