702 



Onagraceae 



Epilobium 



50 



Map 1478 

 Ludwigia sphaerocarpa 

 var. Deamii Fern. & Grisc. 



— 30 



Map 1479 



Epilobium angustifolium L 



50 



Map 1480 



Epilobium strictum Muhl. 



5795. EPILOBIUM L. 



Flowers large; petals entire, 10-20 mm long; stigmas 4-lobed 1. E. angustifolium. 



Flowers small; petals notched at the summit, less than 10 mm long; stigmas entire. 

 Stems terete, without decurrent lines from the leaf bases; leaves linear or lanceolate, 

 entire or nearly so, the margins revolute. 



Capsules and stems with a spreading pubescence 2. E. molle. 



Capsules and stems with a short, curved pubescence 3. E. densum. 



Stems with decurrent lines from the leaf bases ; leaves lanceolate or ovate-lanceolate, 

 serrate, the margins flat. 

 Seed obconic-fusiform, 1.3-1.5 mm long, beakless, not striate but papillate in 

 longitudinal lines, coma tawny in dried specimens but often whitish in im- 

 mature or green specimens; flowers pinkish; leaves narrowed at the base. 



4. E. coloratura. 



Seed obovoid, about 1 mm long, with a very short beak; dried coma white; flowers 

 bluish pink or bluish purple; leaves rounded at the base, more remotely ser- 

 rate and thinner than no. 4 5. E. glandulosum var. adenocaulon. 



1. Epilobium angustifolium L. (Chamaenerion angustifolium (L.) 

 Scop.) Great Willowherb. Map 1479. Infrequent to rare in the open in 

 newly made clearings and in wet soil about lakes, marshes, and interdunal 

 flats. Rarely in dry sandy soil in woodland. 



Greenland to Alaska, southw. to N 1 . C., Ind., Kans., Ariz., and Calif. ; 

 also found in Eu. and Asia. 



2. Epilobium strictum Muhl. (Epilobium molle Torr. ) Map 1480. 

 In sedge marshes and bogs. Rare. It has been reported from Gibson, 

 Jefferson, and Monroe Counties. 



E. Que. to Alberta, southw. to Va., 111., and Minn. 



3. Epilobium densum Raf. (Epilobium lineare Muhl.) Map 1481. In 

 bogs and sedge marshes. Infrequent. 



E. Que. to Alberta, southw. to Del., W. Va., Kans., and Colo. 



4. Epilobium coloratum Muhl. Willowherb. Map 1482. Frequent 

 throughout the state except in the southern counties. In wet soil in road- 



