!-'> I'lKI.I. M.WI'AI. 



1. Cephalanthus occidentalis L. Buttonbush. A shrub 

 or small tree with petioled, ovate or oval, entire acute or 

 acuminate leaves. In swamps and low ground. N. B. to Ont. 

 and Wis., Fla., Tex., Ariz., and Cal. 



Caprifoliaceae. Honeysuckle Family. 

 83. Viburnum (Tourn.) L. Viburnum. 



Shrubs or small trees with opposite, simple, serrate or 

 lobcd leaves; with 3 bundle scars; and with a terminal bud 

 showing- a large and a small pair of scales. 



Flow^ers in compound cymes, tetracyclic ; perianth and 

 andrecium pentamcrous ; fruit a 1 -seeded drupe. 



1. Leaves prominently acuminate ; petioles slender, mar- 

 gined. V. lentago. 



1. Leaves obtuse or merely acute. 2. 



2. Petioles slender, rarely margined; leaves glabrous or 

 nearly so. V. prunifoHiDn. 



2. Veins of the lower Veaf surfaces and winged petioles 

 tomentose. V. rufidulum. 



1. Viburnum lentago L. Sheepberry. A shrub or 

 small tree witli glal)rous acuminate winter buds. Drupe red- 

 dish-black, with a bloom, sweet and edible. Wood hard, 

 orange-brown, ill-smelling. In rich soil. Pludson Bay to 

 Man., N. J., Ga., Ohio, Kan., and Col. 



2. Viburnum prunifolium L. Black Haw. A shrub 

 or small tree with acute winter buds, often reddish-pubescent 

 Drupe blue-black, glaucous, sweet and edible. Wood hard, 

 reddish-brown. In dry soil. Conn, to Ga., ]\Iich.. Kan., and 

 Tex. 



3. Viburnum rufidulum Raf. Southern Black Haw. 

 A small tree with elliptic or obovate, mostly obtuse leaves, 

 with brown-tomentose, winged petioles. Wood ill-smelling. 

 On uplands and dry flood plains. N. J. to ]Vfo., Kan., Fla., 

 and Tex. 



