CA PRIFOLIA CEA E. 875 



Corolla-tube 10-14 mm - l° n g; filaments nearly glabrous. 



5. L. Sullivantii. 

 Corolla bright yellow or orange, its slender tube not gibbous. 



6. L. fiava. 

 Corolla tubular, the short limb nearly equally 5-lobed. 7. L. sempervirens. 



* * Climbing vines; flowers in pairs on short axillary peduncles. 



8. L. Japonica. 



* * * Shrubs; flowers in pairs on axillary bracted peduncles (Genus Xylosteum). 

 tracts of the peduncle subulate, linear, minute, or none. 

 Leaves rarely cordate, more or less pubescent, or ciliate. 



Leaves pale or glaucous, thick, strongly reticulate-veined. 



Peduncles shorter than the flowers ; fruit blue ; leaves ciliate. 



9. L. coerulea. 

 Peduncles equalling the flowers ; fruit red ; leaves not ciliate. 



10. L. oblongifolia. 

 Leaves bright green, thin, ciliate, not strongly reticulate ; fruit red. 



11. L. Canadensis. 

 Leaves pale, densely pubescent beneath, even when old. 12. L. Xylosteum. 



Leaves cordate, glabrous. 13. L. Tatarica. 



3racts of the peduncle broad, foliaceous. 14. L. involucrata. 



i. Lonicera Caprifolium L. Italian or Perfoliate Honeysuckle. 

 I. F. f. 3455.) Climbing high, glabrous, somewhat glaucous. Upper pairs of 

 eaves connate-perfoliate, glaucous beneath, the others sessile or short-petioled, 

 >val or obovate, rounded at the base, entire; flowers in terminal capitate sessile 

 :lusters; corolla 2.5-3.7 cm. long, purple without, the limb white within; upper 

 ip 4-lobed, the lower one narrow, reflexed; tube slightly curved, not gibbous; 

 itamens and style much exserted; bemes red. Thickets, N. Y., X. J. and Penn. 

 :o Mich., and in the Southern States. Nat. from Europe. May-June. 



2. Lonicera hirsuta Eaton. Hairy Honeysuckle. (I. F. f. 3456.) Twin- 

 ing; branches hirsute-pubescent. Upper one or two pairs of leaves connate-per- 

 foliate, the others oval or ovate, short-petioled or sessile, softly pubescent beneath, 

 lark green and appressed-pubescent above, ciliate, obtuse or obtusish, 5-9 cm. long; 

 lowers verticillate in short terminal interrupted spikes; corolla about 2.5 cm. 

 long, viscid-pubescent without, orange-yellow, the tube slender, somewhat gibbous 

 it the base, the limb strongly 2-lipped, about as long as the tube; stamens and 

 style exserted; filaments hirsute below. In woodlands, Vt. and Out. to Manitoba, 

 Penn., Ohio and Mich. June-July. 



3. Lonicera glaucescens Rydb. Douglas' Honeysuckle. (I. F. f. 

 3457.) Similar to the preceding, the branches glabrous. Leaves glabrous above, 

 pubescent, at least on the veins, beneath, 3-9 cm. long, chartaceous-margined, not 

 ciliate. usually only the upper pair connate-perfoliate; flowers verticillate in a short 

 interrupted spike; corolla yellow, changing to reddish, pubescent or puberulent 

 without, pubescent within, 2.5 cm. long, or less, the 2-lipped limb shorter than the 

 tube; stamens nearly glabrous, or somewhat pubescent; style hirsute; both exsert- 

 ed. Ont. to Saskatchewan, Penn., N. Car., Ohio and Kans. May-June. 



4. Lonicera dioica L. Smooth-leaved or Glaucous Honeysuckle. 

 (I. F. f. 3458.) Glabrous, twining or shrubby, 1-3 m. long. Leaves .glaucous 

 beneath, 3-8 cm. long, the upper connate-perfoliate, oval, obtuse; the lower sessile 

 or short-petioled, narrower; flowers several in a terminal cluster, yellowish green 

 [and tinged with purple, pubescent within, the tube gibbous at the base, scarcely 

 longer than the 2-lipped limb; stamens exserted with the style; berries red, 6-8 

 mm. in diameter. In rocky and usually dry situations, Quebec to Manitoba, N. 

 Car., Ohio and Mich. May-June. [L. glauca Hill.] 



5. Lonicera Sullivantii A. Gray. Sullivant's Honeysuckle. (I. F. 

 ^•3459-) Similar to the preceding, very glaucous. Leaves oval or obovate. glaucous 

 ■ind commonly pubescent beneath, obtuse; flowers larger than those of the preced- 

 ing species, the tube slightly exceeding the limb, pale yellow; fruit yellow, 6 mm. 

 ['■ diameter. In woodlands, Tenn., Ohio and western Out. (?) to Wis. and Mani- 

 toba. May-June. 



6. Lonicera flava Sims. Yellow Honeysuckle. (I. F. f. 3460.) Twin- 

 ing or trailing, glabrous. Leaves broadly oval, or elliptic, entire, obtuse, short- 

 jietioled, or the upper sessile, green above, glaucous beneath, the pairs subtending 



