ONAGRACEAE. 249 



Epilobium minutum Lindl. Annual, simple or branched, puberulent, 

 10-30 cm. high; leaves lanceolate, acute, undulate or denticulate, mostly 

 alternate, 1-2 cm. long, narrowed at base; calyx-tube funnelform; petals 

 pinkish, obcordate, 3-4 mm. long; stigma deeply 4-lobed; capsules short- 

 stalked, curved, ascending or erect, 2-2.5 cm. long. 



In open woods, not plentiful. 



Epilobium paniculatum Nutt. Annual, glabrous or minutely pubescent, 

 much-branched above, 30-60 cm. high; bark becoming loose and papery at 

 base; leaves linear or linear-lanceolate, often curved and folded, acute, dentic- 

 ulate, 2-5 cm. long, attenuate to a short petiole; flowers pink or whitish, 

 variable in size, usually 4-10 mm. broad, in loose racemes terminating the 

 almost naked branches; petals notched; capsules lanceolate-linear, 1-1.5 cm. 

 long, on pedicels about as long. 



In open woods, abundant. 



Epilobium franciscanum Barbey. Very similar to E. adenocaulon, but 

 canescent-puberulent throughout or somewhat pilose above; leaves mostly 

 sessile. 



Vancouver Island and British Columbia to California; rare northward. 



Epilobium brevistylum Barbey. Puberulent; stems about 30 cm. high, at 

 their bases usually bearing bulb-like rosettes; leaves mostly opposite, ovate or 

 broadly lanceolate, minutely toothed, sessile; flowers small, purple; seeds 

 roughened. 



In moist alpine meadows at moderate elevations. 



Elipobium adenocaulon Haussk. Perennial by short stolons which produce 

 fleshy rosettes in the fall; stems erect, 30-60 cm. high, usually simple, leafy, 

 glabrous or puberulent, sometimes glandular above; leaves mostly opposite, 

 lanceolate, acutish, closely denticulate, glabrous or puberulent, 5-7 cm. long, 

 mostly short petioled; inflorescence terminal, becoming loose; petals notched, 

 about 4 mm. long, pink; capsules linear, nearly sessile, 6-8 cm. long, usually 

 puberulent; seeds minutely papillate. 



Very common in open places. Very variable. 



Epilobium halleanum Haussk. Glandular-pubescent; stems tall and 

 slender, 60-90 cm. high; leaves opposite, oblong or ovate-lanceolate, serrulate, 

 sessile or partly clasping at base; flowers purple, 10-12 mm. broad; seeds rather 

 smooth, pale beaked. 



In low meadows, rare. 



Epilobiimi alpinum L. {E. hornemanni Reichenb.) Perennial, often 

 tufted, 10-30 cm. high, erect, usually puberulent or glandular in the inflores- 

 cence; leaves ovate, entire or denticulate, 2-4 cm. long, narrowed at base to a 

 short petiole; petals pink or purple, 5-8 mm. long; capsule pedicellate; seeds 

 smooth or minutely roughened. 



Common in wet places in the mountains. A form with smaller white or 

 pale pink flowers is E. lactiflorum Haussk. but it intergrades completely with 

 E. alpinum L. 



Epilobium anagallidifolium Lam. Stems low, simple, commonly densely 

 clustered, usually sharply curved and strongly nodding at apex; leaves mostly 

 obtuse; flowers few; petals purple, 5 mm. long; hairs on the seeds dingy. 



Along alpine rivulets, common. 



Epilobium oregonense Haussk. Glabrous, except the glandular inflores- 

 cence; stems slender, 15-20 cm. high; petals deep purple, 7-8 mm. long. 

 In alpine bogs, rare. 



Epilobium fastigiatum (Xutt.) Piper. Perennial, glabrous and glaucous, 

 usually tufted, the stems mostly simple, 10-20 cm. high; leaves sessile, all 



