IN THEIR WINTER CONDITION. 9 



5 AILANTHUS, Desf. Act. Acad. Paris, 1786. 



A. GLANDULOSA, Desf. 1. c. Tree of Heaven. 



A tree cultivated for shade and escaped in places. Pith large, choc- 

 olate-brown, twigs very large, light brown, pubescent and glaucous; large 

 leaf-scars five-ranked, from V-shaped to triangular heart-shaped; bundle- 

 scars numerous, frequently aggregated in about five areas; buds single, 

 low, scarcely raised above the epidermis; scales about two, rounded and 

 pubescent; terminal buds none. Native of China. 



6 CELASTRUS, L. Gen. 1737; Spec. 1753. 



. C. SCANDENS, L. Spec. 1753. Bitter-sweet. 



A twining vine with white pith, smooth light gray twigs, eight- 

 ranked, semicircular leaf-scars, with bundle-scars aggregated in a central 

 mass. The almost horizontally diverging buds are 1 to 2 mm. long, with 

 the two outer, keeled, brownish scales enclosing several smaller ones. 

 Scarlet fruit persistent. Common. 



7 EVOXYAirS, Tourn. lust. 1700; L. Spec. 175:5. 



K. ATROPURPTJREUS, Jacq. llort. Vind. \771. VVahoo. 



A rather tall shrub with whitish, rhomboidal pith, smooth, green, 

 four-angled twigs and white, semicircular, opposite leaf-scars with one 

 bundle-scar. Terminal bud with two or three pairs of glabrous scales; 

 lateral very small and appressed with one pair of scales. Fruit persist- 

 ent. Not common. 



8 RHAMNUS, Tourn. Inst. 1700; L. Spec. 1753. 



R. LANCEOLATA, Pursh, Fl. 1814. Buckthorn. 



A shrub with white pith, glabrous, gray twigs, small oval or arcuate, 

 four-ranked leaf -scars, with one bundle-scar, and stipule-scars just above 

 the angles of the leaf-scar. Buds pointed, appressed, about 3 mm. long, 

 with several brown, glabrous scales. The phyllotaxy can be compared 

 to that of decussate leaves in which one leaf of each pair is some distance 

 above the other. Rare. 



9 CEANOTHUS, L. Act. Soc. Ups. 1741; Spec. 1753. 



C. OVATUS, Desf. Arb. ii, 1809. Red-root. 



A low shrub with pubescent, gray or red-brown twigs, small, eight- 

 ranked, semi-oval leaf-scars, one horizontal bundle-scar, and frequently 

 persistent awl-shaped stipules. The scales of the globose, densely cot- 

 tony-villous buds can not be easily distinguished. Common in upland 

 woods and rocky hills. 



10 YITIS, Tourn. Inst. 1700; L. Spec. 1753. 



Woody vines climbing by forked tendrils placed opposite the leaf scais. 

 Twigs brown and striate, the bark on the older portions becoming 

 shreddy. Leaf- scars semicircular to crescent-shaped, the surface irreg- 

 ular, and the bundle-scars obscure. Buds obtuse, the two or three smooth 

 brown scales frequently exposing the densely pubescent young leaves. 



