ONAGRARfE/E 



chambered; s(y/e short ; stigma t^ — 5-lobed ; oiniles many; fruit 



a capsule. (Named in honour of Carl Ludwig, Professor of 



Botany at Leipsic.) 



I. Z. /«///^/;7> (Marsh Isnardia). — The only British species, a 



small, prostrate, glabrous plant, 6 — 10 in. long, with 4-angled, 



branched stems, rooting 

 at the nodes ; opposite, 

 stalked, ovate, acute, shin- 

 ing leaves; and minute, 

 axillary, sessile, apetalous, 

 4-merous /Io2ve?'s.^^oggy 

 pools in the New Forest 

 and formerly in Sussex. 

 — Fl. June, July. 



■^"3. CEnothera (Even- 

 ing Primrose), — American 

 herbs, with scattered 

 leaves ; large 4 - merous 

 flowers ; calyx- tube pro- 

 longed above the top of 

 th^ ovary and constricted 

 so as to form a honey- 

 chamber ; sepals decidu- 

 ous ; stametis 8. (Name 

 in Greek oijiotheras^ em- 

 ployed by Theophrastus, 

 signifying " catching the 

 flavour of wine.") 



I.* CE. biennis (Com- 

 mon Evening Primrose). 

 A tall, stout herbaceous 

 plant, 2 — 3 feet high, with 

 lanceolate smooth leaves ; 

 large, pale yellow, fragrant 

 flowers, which open in 

 the evening, and wither 

 towards the middle of the 

 next day ; and a long capsule bluntly 4-sided and widest near its 

 base. It is a native of North America, and is naturalised in a few 

 places. — Fl. July — September. Biennial. 



2.* CE. odordta (Fragrant Evening Primrose), differing mainly 

 in having brighter green /eaves, deeper yQ\\o\N flowe?'s, and a cap- 

 sule widest near the top, is a native of Patagonia, naturalised at 



CIRCEA LUTETIANA 



{Co!fi»i07i Enchatiters Nightshade). 



