354 Caprifoliaceae. 



7. Lower scales essentially as long as the bud. 8. 

 Lower scales distinctly shorter than the bud. 10. 



8. Inner bud-scales woolly. L. iberica. 

 Buds glabrate. 9. 



9. Twigs glabrous. (Swamp fly-honeysuckle). L. oblongifolia. 

 Twigs mostly long-hairy, 4-lined. L. involucrata. 



10. Buds short-ovoid or nearly globose, glabrate. 11. 



Buds distinctly elongated, grooved. (3). L. Maximowiczii. 



11. Scales acuminate. L. gynochlamydea. 

 Scales acute. (American fly-honeysuckle). L. canadensis. 



12. Lower scales as long as the bud. (4). L. deflexicalyx. 

 Lower scales distinctly shorter than the bud. 13. 



13. Buds oblong or ovoid or subglobose: scales 



short-pointed. 14. 

 Buds oblong-ovoid: scales long-pointed. L. nigra. 



Buds conical-fusiform, hairy. 16. 



14. Twigs and buds glabrous. (Tartarian h.). (5). L. tatarica. 

 Twigs pubescent. 15. 



15. Buds somewhat puberulent, small and blunt. L. Morrowii. 

 Buds gray-hairy, oblong or acute. (6). L. Maackii. 



16. Twigs somewhat puberulent. (7). L. Xylosteum. 

 Twigs with long as well as short hairs. L. chrysantha. 



17. Stems red-brown, hairy: subevergreen. L. Japonica. 

 Stems gray or straw-colored. 18. 



18. Often with long glandular hairs above. L. Periclymenum. 

 Not glandular-hairy. 19. 



19. Rough or papillately hairy. L. hirsuta. 

 Essentially glabrous, often glaucous. 20. 



20. More or less evergreen. ( Trumpet h.). L. sempervirens. 

 Deciduous. 21. 



21. Buds oblong, many-scaled. (Woodbine). L. Caprifolium. 

 Buds ovoid, the lower scarcely surpassing their 



lowest scales. 22. 



22. Scales narrowly triangular, pointed. L. glaucescens. 

 Scales ovate, abrupt. L. dioica. 



