PLATE IX 



Rubus parviflorus (19a and 19b) 



(Same synopsis as for Rubus leucodermis , page 22) 



Sorbus scopulina (20a and 20b) 



Vessels present; spring wood vessels large, numerous and 

 solitary (although closely spaced); vessels of late wood not 

 much smaller than those of early wood, but much more 

 widely spaced; vessels markedly angular, with concave 

 facets; perforation plate simple; axial parenchyma absent 

 or sparse and diffuse; rays one or two cells in width (rarely 

 three) . 



