WILLOW-HERB TRIBE. 211 



much branched ; root creeping. Wet places ; common. 

 A handsome species, 4 6 feet high, with large rose- 

 coloured flowers. Well marked by its very downy stems 

 and leaves, and creeping roots. Fl. July, August. 

 Perennial. 



3. E. parviflorum (Small-flowered, Hairy Willow- 

 Herb). Downy ; leaves sessile, narrow, toothed ; stem 

 nearly simple ; root fibrous. Wet places ; common. 

 Distinguished from the last by its smaller size, un- 

 branched mode of growth, and fibrous roots. Fl. July, 

 August. Perennial. 



4. E. montdnum (Broad, Smooth-leaved Willow-Herb). 

 -Leaves egg-shaped, acute, smooth, toothed, the lower 

 ones shortly stalked ; stem round, slightly downy. Dry 

 banks, and hilly places ; frequent. A small species, 

 about a foot high, with rose-coloured flowers, which are 

 most frequently found i-n a half-open state. It may 

 often be detected when in seed by its capsules, the valves 

 of which open lengthwise, and disclose the numerous 

 seeds bearded with cottony down. Fl. July, August. 

 Perennial. 



*** Petals all equal ; stamens erect ; stigma knobbed, not 

 deleft. 



5. E. tetragonum (Square-stalked Willow-Herb). 

 Leaves narrow, sessile, toothed ; stem 4-angled, nearly 

 smooth. Wet places ; common. From 1 to 2 feet high, 

 and often, like the last and following species, more con- 

 spicuous when in seed than in flower. Fl. July, August. 

 Perennial. 



6. E.palustre (Narrow-leaved Marsh Willow-Herb). 

 Leaves narrow, wedge-shaped at the base, slightly toothed, 

 sessile ; stem round, nearly smooth. Wet places ; fre- 

 quent. From 6 to 18 inches high, with very narrow, 

 nearly entire leaves, small flowers, which droop while in 

 bud, and a round stem, which often has 2 downy lines 

 on opposite sides. Fl. July, August. Perennial. 



* To this group, with undivided stigmas, belong also 

 p 2 



