Epilobiaceae 



I J 



twice as many as sepals or i-co , inserted deeper than 

 the petals. Carpels (2-6) each with co -2 ovules, free 

 from the flower-axis. Ovary 2-6-loc, ovules co , axile. 

 Style I with capitate stigma. Fruit a capsule. Seeds 

 without endosperm. 



Tribe Lythreae. Septa of ovary imperfect upwards. 



Flower-axis tubular. Corolla large. Stamens 12. 

 Fruit dehiscent. Lythrum. 



Flower-axis campanulate. Corolla small or absent. 

 Stamens 6. Fruit indehiscent. Peplis. 



Fam. 4. Epilobiaceae (Onagraceae). Usually 

 herbs. Leaves alternate or opposite, exstipulate. Flowers 

 heterochlamydeous, usually hermaphrodite and actino- 

 morphic. Flower-axis tubular. K 2-4, P 2-4, rarely 

 absent. A 4-8, sometimes partially staminodal. G 

 usually (4), united to axis, each with co-i ovules. 

 Style I. 5/'/^7;/<^ entire or 4-lobed. /^r//// various, usually 

 with many seeds. Endosperni scanty or absent. 



Tribe Oenothereae. Ovary quite inferior. 



Calyx persistent. Petals short or absent. Stamens 4. 

 Capsule short. Ludwigia. 



Calyx deciduous. Petals 4, pink or purple. Stamens 

 8. Capsule long. Seeds with hairs. Epilobium. 



Calyx deciduous. Petals 4 (yellow in Brit. sp.). 

 Capsule long. Seeds with membranous margin. 



*Oenothera. 



Calyx deciduous. Petals 2, white. Stamens 2. P>uit 

 dry, indehiscent. Circaea. 



Shrubs. Flowers pendulous. Calyx petaloid. Fruit 

 a berry. *Fuchsia. 



