eeds. Plants strongly m 



Dr. Pennell reviewed his recent study of the America 

 of Veronica and its near allies of the Scrophulariao 

 discussed mainly the trend of evolution within the gr. 



One group, long held as a section, must be accorde( 

 rank. Hebe is a polymorphous genus of shrubs and ev 



es, of New Zealand and southern South America, disti 



by h 





d though even in the most pr 

 idal. Tendencies from this 

 and spreading, the leaves m 



connection with the work of the Prickly Pear Travelling Com- 

 mission. Several species of cacti, commonly called prickly- 

 pears, have escaped from cultivation in Australia, and have now 

 become serious weed pests. They spread rapidly by both seed 



