ONAGRACK2B. 125 



Petals none or 4, reddish: stamens 4: leaves opposite , .,. 2 



Calyx deciduous above the ovary: parts of thcfiotoers in fa. 

 t Anther? versatile (attached near the middle to the filament). 

 a. Seeds with a tuft of silky hairs, stamens 8: lower leaves often opposite. 



Calyx- tube long-funnelf onn above the ovary, scarlet: petals 2-lobed .,....... 8 



Oalyx-limb 4-parted : anthers elliptical or roundish 4 



4. Seeds not tufted with hairs: leaves all alternate: calyx-lobes reflexed. 

 Calyx divided nearly or quite to the ovary: anthers of two forms (or only 4). 



Leaves entire: small or minute flowers: capsules not an inch long 6 



Leaves pinnatifidly lobed: capsules 3 or 4 inches long 6 



Calyx forming a cup or tube (often long and slender) above the ovary 7 



ft Anthers erect, attached at or near the base to the filaments; those opposite the petals 

 shorter or sterile, rarely wanting: calyx-lobes reflexed, except in No. 11: annuals. 



Calyx- tube obconical above the ovary: petals not long-clawed 8 



petals long-clawed 



Calyx -tube filiform above the ovary: petals long-clawed, lobed 10 



Calyx-lobes erect: petals not clawed, 2-lobed: stigma lobes short 11 



Calyx-lobes spreading: petals clawed, entire: stigma discoid, entire 12 



* * * Minute white flowers in bractless racemes, the parts in 2's 13 



1. JUSSLZBA, Linnaeus. 



1. J. repens, L. Stems a foot or more long, rooting at base: style stout, hairy. 

 Var. Calif ornica, Watson. Smaller flowers 6 to 8 lines broad: style slender, glabrous. 



2. LTTDWIGIA, Linnaeus. 

 1. I*, palustrifl, Ellis. Smooth, creeping or floating: flowers sessile: capsule smalL 



3. ZATTSCHNEBIA, Presl. 

 1. Z. California, Presl. Villous or tomentose: calyx 10-16 lines long above ovary. 



4. EPILOBIUM, Linnams. 



Flowers large: stamens and style declined: stigma lobes finally spreading or recurved: 



perennial. 



Stem erect, simple: petals clawed, obovate, lilac-purple 1, 2 



Stem decumbent, 5 to 3 inches long: leaves opposite, glaucous. S 



Flowers yellow 4 



* * Flowers small, parts all erect: stigma club-shaped or cylindrical. 



Perennial: petioles present but short: in wet places: not alpine 5, 6 



Perennial: stems with 2 pubescent lines: leaves mostly opposite: alpine 7, 8 



Perennial ; leaves sessile: hoary or glaucous: leaves mostly opposite: not alpine. 9, 10, 11 



