756 CAPRIFOLIACEAE (HONEYSUCKLE FAMILY) 



spicuous ; corolla white, pink, or yellow, the slender pubescent tube 2.5 cm. 

 long ; berries black. — Escaped from cultivation and established in woods and 

 thickets, Ct. to Fla. May-July. (Introd. from Asia.) 



§ 2. CAPRIFOLIUM [Tourn.] Pers. Tivining shriihs, loith the flowers in 

 sessile ichorled clusters from the axils of the often connate upper leaves, 

 forming interrupted terminal spikes; calyx-teeth persistent on the red or 

 orange berry. 



* Corolla trumpet-shaped, almost regular ; stamens and style little exserted. 



1). L. sempervirens L. (Thu.mpkt H.) Branches and upper surface of the 

 leaves glabrous or nearly so ; flowers in somewhat distant whorls, scentless, 

 nearly 5 cm. long, deep red outside, yellowish within or rarely throughout, 

 glabrous; leaves oblong, smooth, the lower petioled, the uppermost pairs con- 

 nate. — Copses, Me. to Neb., and southw.; common in cultivation. May-Oct. — 

 Leaves deciduous at the north. Var. niRstjTULA Rehder. Branchlets villous or 

 glandular-pubescent ; upper surface of leaves appressed-villous ; corolla exter- 

 nally pubescent. — V'a. and N. C. 



* * Corolla ringent ; the lower lip narrow, the upper broad and 4:-lobed; stamens 



and style conspicuously exserted. 



•*- Corolla-tube 2-2.5 cm. long, glabrous inside; stamens and style glabrous. 



10. L. Caprif6mu:\i L. ("Americax" or Italian Woodbixk.) Leaves 

 smooth, glaucous beneath, obovate, the 2 or ?> upper pairs united ; flowers 

 whorled in the uppermost axils; corolla whitisli, with a purple tube, fading 

 yellowish, not gibbous at base, fragrant. (L. grata Ait.) — Rocky woodlands, 

 N. Y., N. J., and Pa. to Mich., Mo., and southw.; escaped from cultivation. 

 May, June. (Introd. from Eu.) 



-t- -t- Corolla hairy within, the tube 1.3 cm. long or less. 

 ++ Branches glandular-villous ; haves pubescent on both sides. 



11. L. hirsuta Eat. (Haihv IT.) Twining and ratlier high-climbing ; leaves 

 ciliate, deep green and more or less appressed-sftulose above, dovniy-hairy 

 beneath, as well as the branches, veiny, dull, broadly oval, the uppermost united, 

 the lower short-petioled ; flowers in approximate whorls ; corolla 2-2.5 cm. long, 

 orange-yellow, clammy-pubescent ; tlie tube slightly gibbous at base, slender. — 

 Damp copses and rocks, w. N. E. to Pa., Mich., and Man. July. — A coarse 

 large-leaved species. 



++ •*-<■ Branches glabrous ; leaves glabrous above. 

 = Corolla mostly 1.2-2.4 cm. long. 



12. L. Sullivantii Gray. Much ichitened with glaucous bloom, 1-2 m. 

 high, glabrous except for a slight puberulence on the lower surface of the leaves; 

 disk of the uppermost connate leaves orbicular or nearly so, its ends rounded 

 or often retuse, sometimes slightly nmcronate ; inflorescence tending to elongate ; 

 corolla pale yellow ; the tube 1-1.5 cm. long, slightly gibbous at the base; flla- 

 ments nearly glabrous. — Rocky woods or banks, Tenn. to O., centr. la., and 

 Minn. 



L5. L. glaucescens Rydb. Less glaucous; leaves glabrous above hut decid- 

 edly pubescent beneath, the uppermost connate ones forming a somewhat oblong 

 or rhombic disk, usually pointed acutely or obtiisely at the ends, the margin 

 cartilaginous, not ciliate; corolla pale yellow, 1.2-2 cm. long, the pubescent 

 tube gibbous at the base ; ovary glabrous or nearly so. — Ont. and Man., s. to 

 Va., O., and Neb. Var. dasy'gyna Rehder. Ovary densely hirsute and some- 

 what glandular. — O. 



14. L. dioica L. Glabrous, I-.'] m high ; leaves oblong, 5-10 cm long, 

 glaucous and glabrous beneath, the upper 1-4 pairs connate into disks ; even tlie 

 uppermost disks somewhat oblong or rhombic, more or less pointed (at least 

 obtusely') at each end ; corolla greenish-yellow or purplish, the tube barely 1 cm. 



