April, 1914.] The Honeysuckle Family in Ohio. 299 



THE HONEYSUCKLE FAMILY IN OHIO. 



Lillian E. Humphrey. 



Caprifoliaceae. Honeysuckle Family. 



Shrubs, trees, or perennial herbs with opposite leaves, with or 

 without stipules; flowers axillary or temiinal, sympetalous, usually 

 pentamerous except the gynecium, epigynous, actinomorphic or 

 zygomorphic, often 2-lipped, stamens united with the corolla, 

 alternating with its lobes; ovulary 1-6-locular; styles slender, 

 ovules anatropous; fruit a berry, drupe ,or capsule; seeds oblong, 

 globose, or angular; embryo rather small situated near the hilum; 

 endosperm fleshy. 



Synopsis. 



I. Style deeply 5-2-lobed; corolla rotate. 



1. Ovulary 5-3-locular; drupe 5-3-seeded; leaves pinnate. Samhuctts. 



2. Ovulary 3-1-locular; drupe 1-seeded; leaves simple. Viburnum. 



II. Style single, slender; corolla more or less tubular. 



1. Stigma 5-3-lobed; ovulary 5-3-locular, ovules one in each cavity. 



Triosteum. 



2. Stigma capitate or nearly so; ovulary 3-2-locular, ovules several 

 to many in each cavity, or at least several in some cavities. 



a. Fruit a berry. 



(a). Ovulary with four cavities; corolla campanulate. 



Symphoricarpos . 

 (b). Ovulary with 3-2 cavities; corolla short or long tubular. 



(1). Stamens 5; fruit fleshy. Lonicera. 



(2). Stamens 4; fruit dry. LinncEa. 



b. Fruit a capsule. Diervilla. 



Key to the Genera. 



1. Leaves simple. 2. 



1. Leaves compound, pinnate. Sambiicus. 



2. Woody shrubs or vines. 3. 



2. Herbs with sessile axillary flowers; leaves connate or sessile, glandular, 

 pubescent, perennial. Triosteum. 



2. Trailing somewhat woody plants with evergreen leaves; flowers on long 



peduncles, geminate; fruit tri-locular but one-seeded. Linncca. 



3. Flowers with rotate corolla; inflorescence cymose. Viburnum. 



3. Flowers with tubular to campanulate corollas; inflorescence a terminal 



spike or in axillary clusters. 4. 



4. Leaves entire or nearly so. 5. 



4. Leaves serrate, long-acuminate; ovulary elongated; stems ridged lat- 



erally; corolla funnelformed, calyx tube long, slender. Diervilla. 



5. Corolla almost actinomorphic, short, more or less campanulate; leaves 



normally entire; fruit a 4-locular 2-seedcd berry. Symphoricarpos. 

 ^. Corolla zygomorphic, 2-lipped, tubular; fruit a several seeded berry 



Lonicera. 



