CAPRIFOLIACEAE ^HONEYSUCKLE FAMILY) T55 



§ 1. XYL6STE0N [Tourn.] Pers. Leaves all distinct; peduncles axillary, 

 single, 2-flowered at the summit; the two berries sometimes united into one; 

 calyx-teeth not persistent. 



* Upright bushy shrubs. 



•«- Bracts (2 or sometimes 4) at the base of the ovaries small, lance-oblong to 



linear. 

 ++ Corolla-lobes subequal. 

 = Peduncles short (3-7 mm. in length'). 



1. L. caerulea L., var. villbsa (Michx.) T. & G. (Mountain Fly H.) Low 

 (3-9 dm. high); branches upright; leaves oval, downy when young; bracts 

 awl-shaped, longer than the ovaries which are united into one blue edible berry ; 

 calyx-lobes glabrous; corolla yellowish. — Low woods and bogs, Lab. to Alaska, 

 s. to Pa., Mich., Wise, Minn., etc. May, June. 



2. L. Morr6wi Gray. Shrub, 1.5-2 m. high, soft-downy ; branches spread- 

 ing; leaves oblong, rounded or subcordate at base, dark green and somewhat 

 rugose above, much paler and grayish-tomentose beneath, obtuse or barely 

 acutish ; calyx-teeth hirsute or ciliate ; corolla-lobes subequal, nearly as long as 

 the tube, widely spreading, white or cream-colored ; berries bright red. — Fre- 

 quently cultivated, and now locally established in e. Mass. (Introd. from 

 Japan. ) 



= = Peduncles long and slender (1.4-3 cm. in length). 



3. L. tatArica L. (Tartarian H.) Smooth shrub, 1.5-3 m. high; leaves 

 thin, glabrous, entire, cordate-oval, on short petioles ; corolla showy, white or 

 rose-colored; the lobes subequal, loidely spreading, nearly as long as the tube; 

 berries united at the base, red or orange. — Escaped from cultivation and estab- 

 lished on rocky shores and sheltered banks. Me. to Ont., N. J., and Ky. May, 

 June. (Introd. from Asia.) , , ^ 



4. L. canadensis Marsh. (American Fly H.) Branches straggling, 1-1.5 m. 

 high ; leaves ovate-oblong, often heart-shaped, petioled, thin, downy beneath 

 when young, ciliate; corolla funnel-form, 2 cm. long, greenish-yellow, the lobes 

 much shorter than the tube ; berries separate, red. (L. ciliata Muhl.) — Woods, 

 e. Que. to Sask., s. to Pa., Mich., Wise, and Minn. Apr.-June. 



^ -M. Corolla strongly bilabiate, the lips of veiy unequal breadth, the upper 

 shallowly ^-lobed, the lower of a single entire lobe. 



5. L. Xylosteum L. (European Fly H.) Erect shrub, 1-2 m. high; 

 leaves broadly oval, thin, very pubescent beneath, especially when young; 

 peduncles rather short (8-12 mm. in length), thickish; bracts and calyx pubes- 

 cent; corolla yellowish ; berries separate, red. —Escaping from cultivation and 

 becoming locally established in s. N. E., N. Y., and N. J. (Introd. from Eu.) 



6. L. oblongifblia (Goldie) Hook. (Swamp Fly H.) Shrub, 5-15 dm. high; 

 branches upright ; leaves 2-7 cm. long, oblong, downy when young, smooth 

 when old; peduncles slender, 1.5-4 cm. long; bracts minute or deciduous; 

 corolla deeply 2-lipped, 1-1.5 cm. long, yellowish-white; berries red or purplish, 

 united or nearly distinct. —Larch and Arbor Vitae swamps, n. N. B. to ]\Lan., 

 s. to Me., Vt., N, Y., w. Pa., Mich., and Minn. May-July. 



^ ^ The two flowers involucrate by 4 conspicuous and broad foliaceous bracts- 



7. L. involucrata (Richards.) Banks. Pubescent, or becoming glabrous; 

 branches 4-angular; leaves 0.5-1.5 dm. long, exceeding the peduncle, ovate- 

 oblong, mostly pointed, petioled, and with a strong midrib ; corolla yellowish, 

 viscid-pubescent, cylindraceous, 1-1.5 cm. long ; ovaries and globose dark purple 

 berries distinct. —Woods and banks of streams, n. N. B. and e. Que., shores of 

 L, Superior, northw. and westw. June, July. 



* * Twining or trailing shrub. 



8. L. JAPONiCA Thunb. (Japanese H.) Pubescent ; leaves ovate or oblong, 

 thickish, entire, short-petioled ; peduncles rather short ; bracts leaf-like, oon- 



