ONAOKACK/K. ( KVKMNc i-l'KI M I{(..si: !.\MII,V.) \H'J 



in a leafy short raceme; petals 6" long, r()sc-i)ur|.l('. — Wjuste prounds, M.xs.s. 

 to N. Y. and Ont. (Nat. from Ku.) 



* « Stiyma clavute ; stem terete, without dec.urreut lines {or with traces in n. 2) ; 



leaves numerous, the lower opposite, subentire, icith revolute mari/ins. 



2. E. line^re, Muhl. l^sually much branched above and minutely hoarv- 

 pubeseent, 1 -2° high ; leaves linear-lanceolate, tajjcring to a short but distinct 

 petiole, acutish; Howers numerous, pale; capsules hoary, on jtedicels as long 

 as the leaves. (E. palustre, var. linearc, (irmi, mainly.) — Bogs, N. Kng. to 

 I'enn., Iowa, and northward. 



3. E. Strictum, Muhl. Erect, 1 - 2^° high, densely beset with soft sj)read- 

 ing somowliat glandular white hairs; leaves broader, more obtuse and with 

 evident veins, very short-petioled or sessile ; pubescence of the cajtsule soft and 

 spreading. (E. molle, Torr.) — Bogs, Miiss. to Mi. .n., south to Va. and 111. 



* * Stiyma clavate ; stem somewhat (/uailraufjului with 2-4 ridyts or hain/ lines 



decurrent from some of the leaves. 

 -*- Tall and mostly hranchiny, many flowered ; leaves rather larye, toothed, not 

 rex'olute, the lower opposite ; seeds papillose. 



4. E. COloratum, Muhl. Somewhat hoary-pubescent above wr gland- 

 ular, 1-3° high ; leaves lanceolate, sharply serrulate or denticulate, acute, nar- 

 rowed to conspicuous petioles ; flowers pale, more or less nodding ; peduncles 

 shorter than the leaves ; seeds dark, unappendaged ; coma cimiamou-color. — 

 Wet places, common. 



5. E. adenocaulon, Ilaussk. Differs in its more glandular pubescence 

 above, the often blunter and less toothed leaves abru])tly contracted to shorter 

 petioles, flowers erect, paler seeds with a slight jirolongation at tojj, and a 

 merely dingy coma. — Wet places through the Northern States. 



6. E. glandulosum, Lehm. Subsimple; puljescence above not gland- 

 ular; leaves ovate-lanceolate, mostly abruptly rounded to a sessile base and 

 more glandular-toothed; seeds larger. — Canada to the mountains of N. C. 

 [fide Hausskuecht). (Asia.) 



H- -t- Mostly loiv, slender and simple {except forms ofn. 10) ; leaves chief y op- 

 posite, less toothed ; flowers few, noddiny ; seeds appendayed at the ajiex. 

 ++ Seeds areolate but not papillose ; leaves not revolute. 



7. E. anagallidifblium, Lam. Glabrate, a span high or le.-<s; leaves 

 erect or ascending, about equalling the internodes, elliptical-oblong to narrowly 

 obovate, entire or the upper denticulate, tapering to short jictioles ; flowers 

 purple ; sej)als rather obtuse ; caj)sules glabrous on jieduncles exceeding the 

 leaves. — White Mts. and Adirondacks {fide Hausskuecht). (Eu.) 



8. E. lactiflomm, Ilaussk. Glabrous except the pubescent lines, G - 12' 

 high, with elongated internodes; leaves elliptical or the lowest round-obovate, 

 slightly rei)and-denticulate, obtuse, tapering into mostly elongated j)etii»lfs; 

 flowers smaller, white ; sepals more acute; seeds more j)rominently aj»])cnd- 

 aged. — White Mts., and northward {fide Hausskuecht). (Eu.) 



-w- ■•-•• Seeds papillose-roughened . 



9. E. Hornem^nni, Iveirhenb. Glabrate, 8- 18' high; leaves mostly 

 horizontal, ovate, tlie u])per acutish, remotely denticulate, abruptly contracted 



