1 86 ONAGRARIE^E 



opposite, ovate, acute, serrate, glabrous or downy along the edges 

 and veins only, the lower ones slightly stalked, sometimes in 

 whorls of 3 ; buds drooping ; flowers small, pink. — Dry places ; 

 common. — Fl. June — August. Perennial. 



5. E. lance&ldtum (Spear-leaved Willow-Herb). — A rather 

 larger species, with an erect, branched, obscurely angled stem, 

 pubescent with recurved hairs ; leaves stalked, flaccid, mostly 

 pendulous, oblong-lanceolate, toothed ; buds drooping ; flowers 

 small, pink. — Stony places in the south; rare. Fl. July — 

 September. Perennial. 



*** Sf em more or fas 2 — 4 angled : petals all equal : 

 stamens erect : stigma knobbed, not ^-cleft 



6. E. rbseum (Pale Smooth-leaved Willow-Herb). — Stem 1 — 2 

 feet high, branching, with 2 sharp and 2 blunt angles ; leaves 

 long-stalked, ovate, toothed, glabrous ; buds drooping ; flowers 

 small, rose-coloured. — Moist places, chiefly in the south. — Fl. 

 July, August. Perennial. 



7. E. tetrdgonum (Square-stalked Willow-Herb). — Stem 1 — 2 

 feet high, usually much branched, 2 — 4-angled ; leaves sessile, 

 decurrent, linear-oblong, much toothed, flat, yellow-green ; buds 

 erect ; flowers small, rose-pink. — Damp places ; frequent. — Fl. 

 July, August. Perennial. 



8. E. obsairum, a similar plant, produces its copious thread- 

 like runners in summer with leaves not in rosettes ; its leaves are 

 ovate-lanceolate, slightly toothed and dull ; and its flowers small, 

 with short, narrow, rose-red petals. — Damp places ; more common 

 than the preceding. — Fl. July, August. Perennial. 



9. E. Ldmyl, as yet only recognised in a few localities, is allied 

 to E. adndtum ; but differs in its leaves being shortly stalked, 

 more shining, dark blue-green, smaller, more distant, and less 

 toothed ; and its flowers larger and. earlier in appearance. — Damp 

 places. — Fl. June, July. Perennial. 



10. E. paliistrS (Narrow-leaved Marsh Willow-Herb). — Stem 

 6—18 in. high, round, with two lines of down on opposite sides 

 producing slender, small-leaved runners in summer, ending in 

 bulbs in autumn ; leaves narrowly lanceolate, wedge-shaped at the 

 base, sessile ; buds drooping ; flozaers small, pink. — Bogs ; com- 

 mon. — Fl. July, August. Perennial. 



11. E. alsinifblium (Chickweed-leaved Willow-Herb). — A low 

 tufted, almost glabrous species; stems succulent, withtwo raised lines 

 of down ; leaves stalked, ovate, acute, serrate, glabrous, very thin, 

 bright green, shining ; buds drooping ; flowers ^ in. across, bright 



