220 POLYANDRIA.— DI-PENTAGYNIA. 



** Styles 3; stamens numerous, indefinite ; flowers yellow. 



t Frutesnent. 



3. H. prolificum: branches ancipital; leaves lanceo- 



late-linear, rather obtuse, corymbs axillary and 

 terminal, few-flowered ; calyx lanceolate. 

 HAB. Pennsylvania. July. 



4. H. galioides: branches quadrangular ; leaves linear* 



sessile, revolnte on the margin, punctate ; panicles 

 terminal, dichotomous, and divaricate ; calyx linear ; 

 styles often united. 

 HAB. Wet sandy places. July — Sept. Stem 2 ft. 

 high. 



tt» Herbaceous. 



j. H. perforatum: stem ancipital ; leaves obtuse, ob- 

 long, with pellucid punctures ; flowers paniculate ; 

 calyx lanceolate ; styles diverging. 

 HAB\ Fields. June— Aug. uT A foot high; 

 branch. ; anth. black-punctate. §. 



6. H. punclatum: stem terete, black-punctate ; leaves 



oblong-oval, obtuse, amplexicaul ; flowers co- 

 rymbed, punctate ; calyx lanceolate. 

 HAB. Meadows and woods. June — Aug. U . Stem 

 2 ft. high; branch. ; Jl. small. 



7. H. quinquenervium : erect, much branched, smooth ; 



stem quadrangular ; leaves ovate, subcordate, ob- 

 tuse, sessile, about 5-nerved ; corymb dichoto- 

 mous ; calyx linear-lanceolate, longer than the 

 petals. 

 HAB. Wet places. June— Sept. $. Stem 6— 10 

 in. high ; Jl. very small, yellow. 



8. H. canadense : stem erect and straight, 4- winged ; 



leaves linear, attenuate at the base, rather obtuse ; 

 panicle elongated, dichotomous ; calyx lanceolate: 

 styles very short ; capsule conical. 

 HAB. Sandy places. June — July. © . Stem 6— 

 10 in. high ; fl. minute ; caps. red. 



9. H. angulosum : erect ; stem qu idrangular ; leaves 



distant, oblong-lanceolate, siibamplexicaul, acute : 

 panicle dichotomous, with the flowers alternate 

 calyx lanceolate, acute, subcarinate. 



