DICOTYLEDONS. 195 



toothed, the upper divisions larger ; the lower leaves loiig-petioled, 

 the upper nearly sessile ; cymes simple or forked, compact ; peduncle 

 stout ; pedicels short ; calyx lobes longer than the tube, hispid ; 

 corolla nearly white ; capsule hispid, globose, sliorter than the calyx. 

 April-June. In rich woods. 



II. NEMOPHILA. 



Annual ; stems slender, decumbent, pubescent ; leaves al- 

 ternate or opposite, lobed or divided ; flowers solitary, on 

 peduncles opposite the petioles ; calyx 5-parted, with reflexed 

 appendages to the sinuses ; corolla bell-shaped or tubular, 

 5-lobed, with 10 scale-like appendages at the base within ; 

 stamens 5, included ; ovary hispid, 1-celled, placentae 2, 

 ovules 2-12 ; fruit a globose, 1-2-seeded capsule. 



X. MICHOCALYX (Xutt.) F. & ]\I. Sm ALL-FLOWERED XeMOPHILA. 



iSteni very slender, diffusely branched, pubescent, becoming smooth 

 with age, 3-18 in. long; leaves alternate, or the lower opposite, long- 

 petioled, deeply 3-5-parted, the lobes obovate, toothed ; flowers small, 

 white, peduncles slender, shorter than the petioles ; appendages of 

 the calyx and corolla minute ; capsule longer than the calyx, 1-2- 

 seeded, seeds bony. April-June. In shady woods. 



III. NAMA. 



Perennial herbs ; stem glandular-pubescent or bristly ; 

 leaves alternate, entire, often with si)ines in the axils ; flow- 

 ers regular, perfect, axillary or terminal, solitary or clustered ; 

 calyx 5-parted or 5-sepalous ; corolla bell-shai)ed, 5-parted ; 

 stamens 5, inserted on the base of the corolla, and alternate 

 with its lobes, fllaments dilated below ; ovary 2-eelled, many- 

 ovuled, styles 2, distinct, slender; fruit a globose, 2-celled, 

 several-seeded capsule. 



1. X. QUADKivALVis (Walt.) Kuut/c. IIaihv Xama. Stem 

 ascending or erect, from a cree[)ing base, pubescent or liispid, mostly 

 simple, l-'5 ft. liigh ; leaves lanceolate, acute at the apex, narrowed 

 into a petiole below, pubescent on the veins beneath, axils sjuny; 

 flowers axillary, solitary or clustered, sh()rt-])e(luncled ; calyx lobes 

 linear, as long as the corolla; stamens included; capsule apparently 

 l-celled by the tliickeniiig of the j)lacent;e, 'J-valved, as long as the 

 calyx. flune-Aiigust. In muddy places. 



