94 



CALYCIFLOR^ 



3 



flowers rose-coloured, the buds usually drooping. 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. Dry places ; common. Fl. July, August. Perennial. 



5. E. roseum (Pale Smooth-leaved Willow Herb). Stem erect, 

 branched, 1-2 feet high, imperfectly 4-angled, and bearing a panicle 

 of small rose-coloured flowers ; leaves ovate, smooth, toothed, on 

 longish stalks. Damp places, mostly in the south. 



6. E. tetragonum (Square-stalked Willow Herb). Stem branched, 

 4-angled, nearly smooth, 1-2 feet high ; leaves narrow, sessile, 

 toothed ; flowers small, pink ; buds erect. Wet places ; common. 

 Fl. July, August. Perennial. 



7. E. palustre (Narrow-leaved Marsh Willow Herb). Leaves 

 narrow, wedge-shaped at the base, slightly toothed, sessile ; stein 

 round, nearly smooth. From 1-2 feet 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. Wet 

 places ; not common. Fl. July, August. Perennial. 



8. E. alsinifolium (Chickweed-leaved Willow Herb). A moun- 

 tainous species about 6 inches high and branched ; leaves very 

 thin, egg-shaped, pointed, toothed, shortly stalked ; flowers pink, 



rather large. Moist mountainous 

 places in the north. Fl. July, August. 

 Perennial. 



9. E. Alpinum (Alpine Willow Herb). 

 Also a mountain species, with a 

 branched stem 3 or 4 inches high, bear- 

 ing 1 or 2 pink flowers, drooping while 

 in bud. Leaves obtuse, shortly stalked. 

 Moist mountainous places in the north. 

 Fl. July. Perennial. 



2. CEnothera {Evening Primrose) 



1. (B. biennis (Common Evening 

 Primrose). A stout herbaceous plant 

 2-3 feet high, with lanceolate, light 

 green, smooth leaves, and spikes of 

 large, pale yellow, fragrant flowers, 

 which open in the evening and wither 

 towards the middle of the next day. It 

 is common in gardens, and in a few 

 places appears to be naturalized. 

 Fl July to September Biennial. 



Oenothera Biennis 

 (Common Evening Primrose) 



