Proccedins^s of the Ohio State Academy of Science 165 



Celastraceae. Staft'tree Family. 



55, Euonymus L. Wahoo. 



Shrubs or small trees with opposite leaves and 3-5-locular 

 capsules. Seeds enclosed in a red aril. 



1. Flowers purple: c\'mes (i-l.j-flowered ; winter biuls long-pointed with 



long bud scales. E. atropitrpurciis. 

 1. Flowers greenish yellow; cymes 8-7-flowered ; winter buds very 



short pointed with short bud scales. E. europaeus. 



1. Euonymus atropurpiireus Jacq. Wahoo. A high 

 shrub or small tree with green, obtusely 4-angled twigs. Leaves 

 dark red and fruit very ornamental in autumn. Self-prunes small 

 twigs by basal joints. ()nt. to Fla.. ^lont., Okl., and Ohio. 



2. Euonymus europaeus L. Spindletree. A shrub or 

 small tree resembling the preceding. Self-prunes twigs. Culti- 

 vated from Europe. Escaped. N. H., N. Y., and N. J. 



Staphyleaceae. Bladdernut Family. 

 56. Staphylea L. iUaddernut. 



Shrubs sometimes tree-like with opposite compound leaves 

 and bladdery capsules. 



I. Staphylea trifolia L. American Bladdernut. A shrub 

 or rarely small tree with smooth striped bark. In moist soil. 

 Quebec to ]Minn., S. Car., Kan., and Ohio. 



Aceraceae. Alaple Family. 

 57. Acer L. ]\Iaple. 



Trees or shrubs with opposite leaves and with watery often 

 saccharine, or sometimes milky sap. Fruit a 2-winged samara. 

 1. Leaves pinnate or trifoliate; twigs green, glaucous. A. negundo. 



1 . Leaves simple. 2. 



2. Leaves with very large teeth or lobes, the divisions not serrate or 



serrate-dentate. 3. 



2. Leaves with the large divisions or lol)es serrate or serrate-dentate. 5. 



3. Leaves with stipules which arc often large and foliaceous ; leaves 



green and pubescent beneath at least on the veins ; flowers corym- 

 bose, unfolding with the leaves; wings of fruit diverging a little 

 less than a right angle. A. nigniui. 



