DICOTYLEDONS. 221 



the limb, hairy within; stamens and style exserted or included; cap- 

 sule compressed-glol)ose, much shorter than the calyx. May- July. 

 In dry, open ^YOods. 



4. H. LONGiFOLiA Gaertii. Long-leaved Bluets. Peren- 

 nial; stem erect, branched, smooth, -l-angled, 8-12 in. high; leaves 

 sessile, the lower oblanceolate or spatulate, the upper linear, 1-nerved ; 

 corymbs terminal, few-flowered ; corolla light purple to white, the 

 lobes much shorter than the tube ; capsule compressed-globose, nearly 

 as long as the calyx. May-July. In dry, open woods. 



II. CEPHALANTHUS. 



Shrubs ; leaves opposite, entire, short-petioled, stipulate ; 

 flowers white, in axillary, long-peduncled heads ; calyx obconic, 

 4-lobed ; corolla tubular, 4-lobed ; stamens 4, filaments short ; 

 ovary 2-celled, 2-ovuled, style slender, exserted, stigma capi- 

 tate ; fruit dry, obconical. 



C. occidentalis L. Bi'TTON-BUSH. A branching shrub, 5-10 

 ft. high, young branches pubescent ; leaves ovate-oblong, acute at 

 each end, smooth or pubescent ; stipules triangular ; peduncles nearly 

 as long as the leaves; heads globose, al)out 1 in. in diameter; style 

 twice the length of the corolla ; ovary much shorter tlian the calyx. 

 June-Auaust. Common on wet ground. 



HI. MITCHELLA. 



Perennial ; stem very slender, woody, creeping ; leaves 

 entire, petioled, stipulate, evergreen ; flowers in pairs on 

 axillary or terminal peduncles; calyx 4-lobed; corolla funnel- 

 form, 4-lobed, hairy witliin ; stamens 4, alternate with the 

 lobes of the corolla; ovary 4-celled, 4-ovuled, stigmas 4; 

 stamens included and style exserted, or stamens exserted and 

 style included ; frnit 2 united, 4-seeded dru})es or berries. 



M. itEi'EXS L. TwiN-HEUHV. Stem rooting at the joints, smooth, 

 1-2 ft. long; leaves l)roadly ovate to cordate, dark green, shining 

 above; stipules minute : ]H'duncles shorter tlian the leaves; flowers 

 Nvliite. tlie buds tinged with i)ink. k in. long; fruit briglit red, " two- 

 eyed " above by tlie renuiins of the calyces, jiersistent throngli tlie 

 winter, edible. Marcii-May. In rieii, «lami) woo<ls. 



