282 BARBERRY, ETC. 



really unifoliolate compound leaves: see p. 17. Shoots 

 brilliant yellow inside. Autumn leaves red and yellow. 



Venation reticulate. The midrib soon loses itself in 

 reticulation at the apex, giving off a few weak, obscurely 

 pinnate secondaries, which break up long before reaching 



Fig. 107. Barberry, Berberis vulgaris. Typical reticulate venation, 

 p. 281 (Ett). 



the margins, and rapidly tend to loop, passing gradually 

 into the close meshwork of hardly weaker tertiaries, which 

 branch often and at open angles or rectangles. Reticula- 

 tion very regular and typical. 



[Other species with brilliant yellow cortex or wood are, 

 Rhamnus, p. 291, Salix daphnoides, p. 278. 



The similarly hard spinescent glossy leaves or leaflets 

 of Holly, Mahonia, Quercus Ilex are easily distinguished.] 



(/3) Spines quite absent. Leaves small, usually 

 less than 6 9 cm. long. 



