196 CELASTRACEAE. 
The corky lines or wings which occur on the twig-angles 
in E. europaeus, beside them in EH. americanus, and between 
them in EF. alatus, have been described by Miss Gregory in 
the Botanical Gazette for 1888, p. 12, and 1889, pp. 7, 10, 39, 43. 
1. Deciduous. 2. 
Partly or wholly evergreen. 12. 
2. At least the terminal buds long (20 mm.). 3. 
Buds moderate or small. 4. 
3. Buds ovoid. E. sanguineus. 
Buds fusiform. E. latifolius. 
4. Twigs very warty: buds round-ovoid. E. verrucosus. 
Twigs corky-winged: bud-scales 6-8 pairs. (1). E. alatus. 
Twigs neither warty nor corky-winged. 5. 
5. Twigs square: buds oblong, upcurved. 6. 
Twigs terete but often 4-lined. 7. 
6. Low and prostrate. E. obovatus. 
Bushy. (Strawberry bush). (2). E. americanus. 
7. Buds narrowly oblong, appressed, 2-scaled. E. occidentalis. 
Buds about 6-scaled. 8. 
8. Buds rather oblong: scales oblong, loose. 9. 
Buds round-ovoid: scales ovate, appressed, 
dry-margined. 10. 
9. Very dwarf: buds very small. E. nanus. 
Bushy or arborescent. (Waahoo). (3). E. atropurpureus. 
10. Bud-scales with long points. 11. 
Scales not long-pointed. (Spindle tree). (4). E. europaeus. 
11. Fruit small (10 mm.), bright red. E. lancifolius. 
Fruit large (12-15 mm.), dull. E. yedoensis. 
12. Leaves thin, partly evergreen. E. patens. 
Leaves thick, more persistent. 138. 
13. Low and spreading or else climbing. E. radicans. 
Bushy. E. japonicus. 
