HONEYSUCKLE FAMILY 815 



cordate at the base, much enlarged in fruit. Corolla cylindric-campanulate, 

 strongly gibbous at the base; limb almost regular, with 5 short rounded almost 

 erect lobes. Fruit of the flowers distinct and surrounded by the bractlets and 

 the bracts. Otherwise as in Xylosteon. 



1. D. involucrata (Richardson) Cockerell. Shrub 1-3 m. high; leaves 

 short-pet ioled, ovate, oval, or obovate, 5-15 cm. long, acute or acuminate at the 

 apex, rounded or acute at the base, glandular-dotted and more or less pubescent ; 

 bracts and bractlets foliaceous, and enlarged and reddish in fruit ; bracts ovate or 

 cordate, obtuse or acute; corolla yellow, pubescent; stamens and style slightly 

 exserted; fruit globose or oval, dark purple or black, about 8 mm. in diameter. 

 Lonicera involucrata (Richards.) Banks. On wooded river banks: Que. Mich. 

 Colo. Calif. Alaska. Submont. Subalp. 



8. LONICERA L. HONEYSUCKLE. 



Mostly climbing shrubs, with opposite simple leaves, the uppermost in ours 

 connate. Flowers usually irregular, in interrupted spikes or heads in the 

 axils of the leaves. Hypanthium ovoid or globose. Calyx-lobes 5, small. Cor- 

 olla in ours funnelform or trumpet-shaped, more or less gibbose at the base and 

 more or less irregular; limb 5-lobed and more or less 2-lipped. Stamens adnate 

 to the tube of the corolla; filaments slender; anthers linear or oblong. Ovary 

 2-3-celled; ovules numerous in each cell, pendulous; style slender; stigma capi- 

 tate. Berry fleshy, 2-3-celled, few-seeded. 



Corolla 3 cm. long, its limb slightly bilabiate; lobes short; leaves glabrous except the 



ciliate margins. 1. L. ciliosa. 



Corolla 2 cm. long, decidedly bilabiate; leaves hairy beneath. 2. L. glaucescens. 



1. L. ciliosa (Pursh) Poir. High twining shrub, with glabrous stem and 

 light colored sheddy bark; leaves broadly oval or obovate, subsessile, obtuse, 

 glaucous beneath, perfectly glabrous except the ciliate margins, the upper one 

 or two pairs connate; flowers in a terminal interrupted spike of 1-3 verticils, 

 also often in short-peduncled clusters in the axils of the upper leaves; corolla 

 trumpet-shaped, 25-35 mm. long, yellow to red, glabrous or nearly so, gibbous 

 at the base; limb only slightly bilabiate; style and stamens exserted; fruit red. 

 Copses and hillsides: Calif. Ariz. Mont. B.C. Submont. 



2. L. glaucescens Rydb. Shrub more or less twining, with light colored 

 shreddy bark; leaves obovate or oval, mostly subsessile, glabrous above, glau- 

 cous and more or less hairy beneath, the margins chartaceous, not ciliate; flowers 

 in a short terminal interrupted spike; corolla yellow, changing into reddish, 2-2.5 

 cm. long, slightly hairy or puberulent without, pubescent within, funnelform, 

 strongly gibbous at the^base; style and stamens more or less hairy, and exserted; 

 fruit red. Hillsides and among^bushes: Ont. Pa. Okla. (Black Hills) S.D.- 

 Mack. Plain Submont. 



9. DIERVILLA (Tourn.) Mill. BUSH HONEYSUCKLE. 



Shrubs, with simple opposite leaves and yellow flowers in small terminal or 

 axillary cymes, or solitary. Hypanthium slender. Calyx-lobes 5, linear. 

 Corolla narrowly funnelform, slightly gibbous at the base; limb 5-lobed, nearly 

 regular. Stamens 5, adnate to the tube of the corolla; anthers linear. Ovary 

 2-celled; ovules numerous; style filiform; stigma capitate. Fruit a linear-oblong 

 septicidal, 2-valved, many-seeded capsule. 



1. D. Diervilla (L.) MacMill. Shrub 1-1.5 m. high, generally glabrous; 

 leaves ovate, or oval, acuminate, generally rounded at the base, serrulate, 5-12 

 cm. long; flower-clusters 1-5-flowered, terminal or in the upper axils; corolla 

 yellow, pubescent without and within, about 18 mm. long, three of its lobes 

 somewhat united; capsule slender, beaked and crowned with the persistent 

 sepals. Diervilla trifida Moench. D. Lonicera Mill. Dry or rocky woods: Newt. 

 N.C. Ky. Sask. 



