EVENING PRIMROSE FAMILY. 181 



1. EPILOBIUM, WILLOW-HERB. (Three Greek words meaning 

 violet on a 2^od.) Flowers summer. Tlie pods opening give to the 

 winds great numbers of the downy-tufted seeds. 21 



* Flowers larc/e and showy, in a long spike or raceme, the loidehj spread- 

 ing petals on short daws, the stamens and long style bent downwards, 

 and the stigma of 4 hmg lobes ; lower leaves alternate. 



E. angustif6lium, Linn. Gre.vt W. or Fireweed. One of the 



phinls thai spiiiii; up abundantly, everywhere northward, where fore.sts 

 have been newly ck'ared and the ground burned over; tall (4°-7° high) 

 and simple-stemmed, smooth, with lanceolate leaves, and a long succes- 

 sion of pink-purple flowers. 



* * Floicers small (save in the first) in corymbs or panicles terminating 

 the branches, toith petals, stamens, and style erect, and all the lower 

 leaves opposite; stem 1^-2° high. 



H- Stigma i-parted; flowers showy. 



E. hirsutum, Linn. Nat. from Eu. in E. States, and sometimes 

 cult. ; a stout branching plant 3°-5° high, densely soft-hairy ; leaves 

 mostly opposite and lance-oblong, finely serrate ; flowers bright purple, 

 about 1' across, in a loose, leafy, terminal raceme. 



H- -t- Stigma elevate ; flowers small and mostly rather inconspicuous. 



*-*■ Leaves more or less rcvolnte, small and narrow, entire or very nearly 

 so. All in bogs X. 



E. palustre, Linn. Slender and low (C)'-V2' high), often simple, 

 finely pubescent, the stem more or less angled or marked with hairy 

 lines ; leaves erect or ascending, equaling the nodes, sessile, linear or 

 elliptic-oblong and obtuse ; capsules either pubescent or nearly glabrous, 

 mostly shorter than the slender peduncles. 



E. lineare, Muhl. Taller and more branched, minutely hoary-pubes- 

 cent, the stem terete and with only a trace of hairy lines, or none ; leaves 

 linear-lanceolate, tapering to a short but distinct petiole, somewhat acute; 

 capsule hoary, the pedicels as long as the leaves. 



E. strlctum, Muhl. Densely pubescent, witli soft and spreading, 

 somewhat glandular whitish hairs, l°-o° high ; leaves broader, obtuse 

 and veiny, very short-pctioled or sessile. 



*+ ++ Leaves not revolute, rather broad and thin, prominently toothed. 

 All in wet places N. 



E. colordtum, Muhl. More or less hoary and glandular-pubescent, 

 1'^-:!'^ high, with angled stems ; leaves lanceolate, sharply denticulate and 

 acute, narrowed into a conspicuous petiole ; flowers pale and more or less 

 nodding, with pedicels shorter than the leaves ; seeds not prolonged at 

 to)i. Common. 



E. adenocatilon. Ilaussk. More glandular, with blunter and less 

 toothed leaves which are abruptly contracted into very short petioles; 

 flowers erect, and seeds slightly prolonged at the top. 



E. glandul6sum, Lam. Nearly simple, and the pubescence above not 

 glandular ; leaves ovate-lanceolate, usually rounded into a sessile base, 

 more or less glandular-toothed. 



2. ZAUSCHNERIA. (Named for //. Zauschner, a Bohemian bota- 

 nist.) n 



Z. Califdrnica, Presl. Cult, for ornament, from Cal., flowering through 

 late summer and autumn ; l°-2° high ; the oval or lanceolate leaves and 



