CAPRIFOLIACEAE 1125 



6. NINTOOA Sweet. 



Shrubby twining vines. Leaves opposite : blades entire, short-petioled or nearly 

 sessile. Flowers in pairs each of which terminates an axillary peduncle, accompanied by 2 

 foliaceous bracts and 2 small bractlets, the hypanthia distinct. Calyx of 5 slender or subu- 

 late sepals. Corolla relatively long : tube slender, not gibbous at the base : limb often 

 longer than the tube, 2-lipped, the upper lip 4-lobed, the lower lip narrow. Stamens 5 : 

 filaments adnate to the corolla-tube. Ovary often 2-celled : style slender. Berries sub- 

 globose or slightly elongated, pulpy, distinct. 



1. Nintooa Japonica (Thunb. ) Sweet. A diffusely climbing vine, 2-6 m. long, 



with glabrate or finely pubescent foliage, the bark shreddy. Leaf-blades oblong, ovate or 



orbicular-ovate, 2-5 cm. long, thickisli, obtuse, acute or short-acuminate, often slightly 



ciliate, rounded or truncate at the base, short-petioled ; petioles pubescent like the 



branches : flowers in pairs terminating peduncles from the upper axils : corolla white or 



pink, turning yellow, pubescent without ; tube about 2 cm. long, longer than the recurved 



lips : stamens and style exserted : berries subglobose or oval, 4-6 mm. in diameter, black. 



l_Lomcera Japonica Thunb. ] 



On roadsides and in moist woods or thicl^ets, New York to West Virginia and Florida. Natural- 

 ized from Eastern Asia. Spring to fall. Japanese or Chinese Honeysuckle. 



7. LONICBRA L. 



Shrubby vines, with trailing or twining stems and shreddy bark. Leaves opposite : 

 blades entire, or pinnatifid on shoots, one or more pairs at the ends of branches connate-per- 

 foliate. Flowers sessile, often clustered at the joints, disposed in whorls. Hypanthium 

 subglobose or ovoid. Sepals 5, equal or unequal. Corolla tubular, tubular-infundibuli- 

 form or long-campanulate : tube more or less swollen at the base : limb oblique, 2-lipped 

 or with 5 nearly equal imbricated lobes. Stamens 5, adnate to the corolla-tube. Disk 

 cushion-like. Ovary 2-3-celled : styles filiform : stigma capitate. Ovules numerous, in- 

 serted in 2 rows on placentae arising from the inner angles of each cavity. Berry fleshy, 

 2-3-celled or by suppression of the septa 1-celled, few-seeded. Honeysuckle. 



Corolla-limb 'J-lipped, the upper lip 4-lobed, the lower lip entire. 



Corolla-tube glabrous withhi. 1. L. Caprifolium. 



Corolla-tube pubescent within. 



Corolla white, lemon-yellow or reddish : tube more or less gibbous. 



Corolla white or yellowish white : plants with typically only one pair of 



bracts or leaves connate. * 2. L. albiflora. 



Corolla lemon-yellow or reddish : plants with typically several pairs of 

 bracts or leaves connate. 



Corolla-tube less than 10 mm. long. 3. L. dioica. 



Corolla-tube over 10 mm. long. 



Corolla pubescent without : leaf-blades finely pttbescent beneath. 4. L. qlaucescenn. 



Corolla glabrous without : leaf-blades glabrous. 5. L. SuUivantU. 



Corolla deep yellow or orange ; tube slightly gibbous. 



Corolla pubescent about the throat within ; tube about 15 mm. long. 6. L. flavescens. 



Corolla glabrous within ; tube about 20 mm. long. 7. L. flava. 



Corolla-limb scarcely 2-lipped, of 5 nearly equal lobes. 8. L. sempervirens. 



1. Lonicera Caprifolium L. A twining vine 2-6 m. long, with almost glabrous 

 and more or less glaucous foliage, the twigs often pilose. Leaf-blades thickisli, oblong, 

 oval or obovate, 2-7 cm. long, mostly obtuse, glaucous beneath, the lower ones short- 

 petioled, the upper sessile, or the upper one or two pairs connate : flowers in sessile terminal 

 clusters : corolla purple without, 3.5-4 cm. long, glabrous within ; tube 2.5-3 cm. long, 

 curved, longer than the lips: stamens and style exserted : berries red. [L. grata Ait.] 



In thickets and rocky woods, New York to Michigan, south to Georgia and Louisiana. Native of 

 Europe. Spring. 



2. Lonicera albiflora T. & G. A shrubby, spreading or partially twining vine, with 

 branches 1-3 m. long, the foliage glaucous, usually glabrous. Leaf-blades becoming thick- 

 ish, broadly oval, orbicular-oval or obovate, 1.5-4 cm. long, those of the distal pair, or 

 typically one pair of bracts connate : flowers in a terminal cluster : corolla 2 lipped, white 

 or yellowish white, 13-16 mm. long, glabrous without ; tube slightly gibbous, pubescent 

 within ; lobes of the lips obtuse : filaments glabrous or nearly so : style pubescent : berries 

 globular, 8-10 mm. in diameter. 



In thickets or on banks, Arkansas to Texas and Arizona. Spring. 



3. Lonicera dioica L. A shrubby or twining vine 1-3 m. long, with glabrous and 

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



