EVENING PRIMROSE FAMILY. Onagraceae. 



A similar species with densely soft white 

 Epilobium hairy stem, leaves, and seed-pod. The 

 Li7ac' leaves broader and less acute than those 



July-August f tne l as t species, with short stems or 

 none at all. The veins distinct. Flowers 

 like those of the previous species. 1-3 feet high. In 

 bogs from Me., south to Va., and west to Minn. 



A very common species in the north, 

 Epilobium with a minutely hairy branching stem, 

 Lilac M often ruddy, and lanceolate leaves, dis- 



July-August tinctly but not conspicuously toothed, 

 short-stemmed, and yellow-green in color, 

 often ruddy-tinged. The tiny flowers pale lilac, and 

 sometimes nodding ; in fact, all these small-flowered 

 Epilobiums after being plucked show nodding blossoms. 

 Seed-pod green, exceedingly long and slender, the seeds 

 dark brown, the hairy plume, at first pale, finally cinna- 

 mon brown. 1-8 feet high. In wet situations everywhere. 



Differs from the foregoing species in 

 Epilobium having erect flowers (though they may 

 ndenocaulon , , ,\ , -, u i -, < 



Lj , ac nod at nrst), broader, blunter, and less 



July-August toothed leaves with shorter stems, and 

 lighter colored seeds with a slight prolon- 

 gation at the top. 1-3 feet high. In wet situations 

 throughout the north ; not south of Pa. The silky 

 plumes of the seeds of these few last small-flowered 

 species described may become grayish white as in E. 

 adenocaulon ; but at first they are absolutely white. At 

 best the Epilobiums are a difficult genus to separate dis- 

 tinctly, and are not a little puzzling to the botanist. 



A very familar biennial, and nocturnal 

 Common . .,, ,. 



Evening species, with light green leaves more or 



Primrose less lance-shaped, sometimes broad, slight- 



CEnothera ly resembling those of the fire weed, 

 biennis slightly toothed or toothless. Large showy 



Jury- August P ure yellow flowers, lemon-scented, with 

 eight prominent and spreading stamens ; 



29* 



