LV. ONAGRARIEiE. 117 



the ovary, its limb 4-5-lobed, valvate or open in bud. Petals 

 on the margin of the calyx-tube or 0. Stamens as many or 

 twice as many as the calyx-lobes, and opposite them. Ovary 

 inferior, 2-4-5-celled ; style mostly filiform (rarely splitting) ; 

 stigma 2-4-5-lobed. Fruit a capsule or berry. Seeds exalbu- 

 minous or nearly so. — A considerable Order, chiefly of tempe- 

 rate climates. Leaves opposite or alternate, exstipulate, 

 simple, entire, or variously lobed or cut. Elowers either axil- 

 lary or in racemes or spikes, often showy. The well-known 

 garden-flowers CEnothera and Fuchsia belong to this Order. 



Tribe 1. Jussie^. Flowers bisexual. Petals spirally twisted in bud 

 (sometimes 0). Ovary 4-5-celled ; ovules numerous j style filiform. Fruit 

 capsular. Seeds many, not winged. 



Limb of the calyx persistent ; capsule septicidal. 



Stamens 8-10 1. Jussi^a. 



Stamens 4-5 2. LUDWIGIA. 



Limb of the calyx deciduous ; capsule loculicidal. 



Calyx-tube mucli produced beyond the ovary. Seeds 



nudo 3. CEnothera. 



Calyx-tube not longer than the ovary. Seeds with a 



silky tuft 4. Epilobium. 



Tribe 2. Montinie^. Flowers dioecious. Petals imbricate. Ovary 

 imperfectly 2-celled ; ovules numerous ; style splitting through the middle. 

 Fruit capsular, 2-valved. Seeds broadly winged. 



A glabrous, small shrub, with alternate, simple leaves . 5. Montinia. 



Tribes. Trapes. Flowers bisexual. Petals imbricate. Ovary 2-celled ; 

 ovules solitary ; style filiform. Fruit a hard, 1 -seeded nut. 



Water plants, with rhomboid, long-petioled, floating leaves, 



and spinous or horned nuts 6. Trapa. 



Tribe 1. Jussie.e. (Gren. 1-4.) 



1. JUSSI^A, Linn. 



Calyx-tube not produced beyond the ovary ; the Hmb 4-5- 

 partecl, persistent. Petals 4-5. Stamens 8-10. Stigma ca- 

 pitate. Capsule 4-5-celled, crowned by the calyx-lobes and 

 opening longitudinally between the ribs. Seeds numerous, 

 small, naked. — Fl. Cap. ii. p. 504. 



A considerable genus, chiefly of tropical America. — 2 species, one of them 

 endemic, occur at Natal. Leaves alternate, entire. Flowers axillary, soli- 

 tary, yellow. 



2. LUDWIGIA, Linn. 



Characters as in Jussifco, except stamens 4-5. Petals want- 

 ing in L. palustris. — Fl. Cap. ii.p. 504. 



2 species, neither endemic, found in the Eastern district and Natal : L. 

 palustris (without petals) and L.jussiceoides (with petals). 



