11 26 CAPKIFOLIACEAE 



or acutish, usually very glaucous beneath, deep green above, sessile and 2 or several of 'the 

 upper pairs connate : flowers in terminal clusters : corolla yellowish green, tinged with 

 purple, glabrous without ; tube about 1 cm. long, gibbous at the base, barely longer than 

 the lips : filaments pubescent, like the style, exserted : berries subglobose, 6-8 mm. in 

 diameter, red. \_L. parviflora Lam.] 



On dry rocky hillsides, Quebec to Manitoba, Georgia and Ohio. Spring. 



4. Lonicera glaucscens Rydb. A twining vine, with widely branched stems, the 

 branches sometimes sparingly pubescent, often glaucescent : leaf-blades oblong or elliptic, 

 varying to slightly broadest above or below the middle, 5-12 cm. long, acute or apiculate, 

 more or less pubescent and glaucous beneath, barely chartaceous margined, sessile : bracts 

 connate : spikes short-ped uncled : corolla yellow turning to reddish, barely 2 cm. long, 

 somewhat pubescent and ftften glandular-puberulent without ; tube strongly gibbous at the 

 base, pubescent within ; limb 2-lipped, shorter than the tube : filaments glabrous or pubes- 

 cent : style hirsute : berries globose. 



In thickets or ravines, Ontario to Saskatchewan, North Carolina and Nebraska. Spring. 



5. Lonicera Sullivantii A. Gray. A rigid twining vine 2-5 m. long, with copiously 

 glaucous foliage. Leaf-blades oblong, oval or obovate, 2.5-8 cm. long, obtuse, entire, 

 firm at maturity, 1 or several of the upper pairs connate, glabrous : flowers in terminal 

 clusters : corolla pale yellow, glabrous without ; tube about 1 cm. long, somewhat longer 

 than the lips : filaments glabrous or nearly so, like the style, exserted : berries subglobose, 

 5-6 mm. in diameter, yellow. 



In rocky or dry woodlands, Ontario to Wisconsin and Tennessee. Spring. 



6. Lonicera flavescens Small. A trailing or slightly twining branching vine be- 

 coming several m. long, the stem and branches glabrous. Leaf-blades oblanceolate to 

 elliptic or rhombic-ovate, 8-12 cm. long, acute, entire, not chartaceous-margined, finely 

 pubescent beneath or glabrate, sessile or nearly so : bracte connate, abruptly pointed, green 

 above : spikes showy : corolla light yellow, about 2 cm. long, more or less pubescent within 

 near the throat ; tube slender, barely gibbous at the base ; limb 2-lipped, the lips curled 

 back : berries globular. 



On bluffs and shaded banks, Kentucky and Tennessee. Spring. 



7. Lonicera flava Sims. A twining vine 1-3 m. long, with glabrous and sparingly 

 glaucous foliage. Leaf-blades broadly oval, broadly ovate or oblong, or rarely obovate or 

 elliptic, the upper 1, 2 or 3 pairs connate, obtuse or acutish, chartaceous-margined, 

 gradually narrowed or sometimes cordate at the base, the lower ones short-petioled : flow- 

 ers in terminal clusters, fragrant : corolla bright orange-yellow, glabrous without ; tube 

 fully 20 mm. long, glabrous within, barely gibbous, about twice as long as the lips : fila- 

 ments and style glabrous, exserted : berries subglobose or oval, 6-7 mm. long. 



On rocks or in rocky soil, North Carolina, South Carolina, Georgia and Alabama. Spring. 



8. Lonicera sempervirena Ait. A commonly evergreen twining vine 1-6 m. long, 

 with glabrous or sparingly pubescent and glaucous foliage. Leaf-blades leathery, oval or 

 oblong or sometimes obovate, lanceolate or linear-lanceolate, 3-9 cm. long, obtuse or apic- 

 ulate, glaucous and sometimes softly pubescent beneath, the upper pair or several pairs 

 connate, dark green, glabrous or nearly so above : clusters forming terminal interrupted 

 spike-like panicles : corolla scarlet or yellow, 3-4 cm. long, glabrous ; tube slightly dilated 

 upward ; lobes 5, spreading, nearly equal : stamens and style scarcely exserted : berries 

 ^clustered, about 6 mm. long, scarlet. 



In sandy soil, often on river banks, Connecticut to Nebraska, Florida and Texas. Summer to fall. 



8. DIERVfLLA L. 



Shrubs, with erect branching stems. Leaves opposite : blades membranous, entire or 

 toothed, sessile or short-petioled. Flowers pedicelled, in terminal or axillary dichotomous 

 cymes. Hypanthium elongated, narrowed above. Sepals 5, narrow, erect, persistent. 

 Corolla white, yellow, pink or purple, infundibuliform or somewhat campanulate : tube 

 narrow : limb slightly oblique, with 5 imbricated lobes. Stamens 5, adnate to the corolla- 

 tube : anthers linear. Disk variable in shape, entire or 2-lobed, fleshy, adnate to the base 

 of the corolla-tube. Ovary 2-celled, or rarely 3-celled. Ovules numerous in each cavity, 

 inserted in 2 rows on placentae arising from the inner angles. Capsule elongated, leathery 

 or woody, opening septicidally by 2 valves. Seeds numerous, minute, flattened, angled. 



Leaf-blades petioled, ciliate. 1. D- DicrviUa. 

 Leaf-blades sessile or nearly so, not ciliate. 



Leaf-blades glabrous beneath or essentially so : capsules 9-12 mm. long. 2. D. sessiltfolia. 



Leaf-blades pubescent beneath : capsules 5-6 mm. long. 3. D. rivulan*. 



