April, 1914,] The Honeysuckle Family in Ohio. 307 



slightly gibbous; fnut a yellow berry about \ inch in diameter. 

 In woods. Stark, Muskingum, Franklin, Madison, Clark, 

 Highland. 



11. Lonicera dioica L. Smooth leaf Honeysuckle. A trailing 

 or shrubby plant 3 to 10 feet high; leaves oval to obovate, 1| to 3 

 inches long, | to \\ inches wide, usually glaucous beneath, upper 

 pair connate-perfoliate, lower ones sessile, obtuse, base truncate 

 or cordate ; inflorescence a terminal cluster ; corolla yellowish green 

 tinged with purple, gibbous, 2-lipped, glabrous without, pubescent 

 within, tube I to f inch long, stamens and style cxserted; frviit a 

 red berry \ to -3- inch in diameter. In dry rocky fields and along 

 roadsides. Champaign, Franklin. 



Triosteum L. Horse-gentian. 



Perennial herbs with simple, terete, pubescent stems; leaves 

 opposite, perfoliate or sessile, ovate, oblong, or oblanceolate, 

 constricted below the middle, usually pubescent; flowers solitary 

 or in clusters, bisporangiate, 2-bracted, sessile; corolla yellowish, 

 green, or purple, tube narrow, gibbous at the base, campanulate; 

 calyx lobes elongated, linear-lanceolate, leaf -like, persistant; 

 filaments short, anthers linear, included; ovulary 3-5-locular 

 containing a single ovule in each cavity; fruit a coriacious, orange 

 or red drupe containing 2-3 one-seeded nutlets, embryo small. 



Key to the Species. 



1. Stem slender, hirsute pubescent, 1| to 85 feet high; leaves rough pube- 

 scent, corolla yellowish. T. angustifolium. 



1. Stem erect, stout, finely glandular-pubescent, 1 to 3 feet high; leaves 

 soft pubescent, some connate-perfoliate; corolla purple or dull red. 



T. perfoliatum. 



1. Triosteum angustifolium L. Yellow Horse-gentian. Stem 

 slender, very pubescent, 1 to 3 feet high; leaves lanceolate to 

 oblanceolate, acute to long acuminate, 2| to 5 inches long, ^ to 1|- 

 inches wide, tapering below the middle to an acute sessile base, 

 roughly pubescent; corolla yellowish, about ^ inch long; flowers 

 axillary, solitary. In fertile places. Cuyahoga, Warren, Clermont. 



2. Triosteum perfoliatum L. Common Horse-gentian. Stems 

 1| to 3| feet high, covered with short glandular hairs; leaves 

 3| to S| inches long, 1| to 5 inches wide, ovate to oblong-lanceo- 

 late, acuminate, tapering to a narrow base, often somewhat con- 

 nate, upper surface appressed pubescent to glabrous, lower quite 

 pubescent; flowers not solitary', ^ to f inch long, corolla lobes 

 rather large, somewhat spreading; stamens and style moderately 

 exserted; calyx lobes linear, obtuse; fruit an orange-red drupe 

 about f to I inch long. In rich soil. General. 



