Fig. 73. — Section 5 : Pbtiolari? 



a, P. potiolaris. Wall.\ B, P. Stirtoniana, Watt— alpine form; c, P. petiolaris. 

 Wall . also a' showing flowers solitary; r;, P. Listeri, King, leaf to show full 

 petiolate condition ; B, P. mollis, Hook., leaf to show full petiolate condition. 



