Class V. Order III. 71 



* A more common shrub than the foregoing. The shoots 

 are slender and very straight, from whence it has received the 

 name of Arrow wood. Leaves roundish or oval, very regularly 

 toothed, the veins parallel and prominent underneath. Moist 

 woods. June, July. 



VIBURNUM ACERIFOLIUM. L. Maple Viburnum. 



Leaves three lobed, acuminate, sharply ser- 

 rate ; petioles without glands, hairy. Willd. 



Leaves rounded or hearted at base, broad, divided into three 

 lobes, with large teeth, very soft with minute down underneath. 

 Cymes on long peduncles. Woods, Roxhury. June, July. 



The different species of Viburnum are fine flowering shrubs, 

 'and with the Elder, next described, constitute a principal orna- 

 ment of our woods and thickets during the first part of sum- 

 mer. 



90. SAMBUCUS. 

 SAMBUOUS CANADENSIS. L. Common Eldev. 



Cymes five parted; leaves nearly bipinnate, 

 stem shrubby. Willd. 



Michaux says he could observe no difference between this 

 species and the Stunbucus nigra of Europe, except in size, the 

 latter being a tree, the former a shrub. Leaves pinnate, the 

 lower leafets double or ternate, and all of them oblong-oval, 

 sharply serrate, tapering to a very long and acute point. Flow- 

 ers white ; berries blackish ; both considered medicinal. June, 

 July. 



91. RHUS. 

 RHUS GLABRUM. L. Smooth Sumacii 



Glabrous 5 leaves pinnate, of many pairs, leafets 



