(35) 



7. Anemopsis. — Spadix with a several- 

 leaved involucre. Flowers bracteate. 

 Perigonium 0. Ovaries immersed in 

 the rachis, 1-celled, oo-seeded. 



8. Frankenia. — Calyx tubular, costate, 5- 

 cleft. Petals 5, unguiculate. Capsule 

 1-celled, dehiscent by valves. Ovules 

 few, inserted on parietal placentae. 



III. Hexagynia— Polygynia. 



1. Triglochin. — Stigmas sessile, plumose. 

 Aquatic. 



2. Alisma. — Sepals 3. Petals 3. Aquatic. 



HEPTANDRIA. 



I. Monogynia. (Number of parts somewhat inconstant.) 



1. Trientalis.— Calyx 7-clet't. Corolla 7- 



parted. Stamens inserted on the cor- 

 olla. 



2. iEsculus. — Calyx 5-dentate. Petals 4-5, 

 irregular. 



II. Trigynia. 



1. Portulaca. — Corolla superior, Cah^x 2- 

 sepalous, deciduous. Petals ;4-6. Fruit 

 a circumscissile capsule. Succulent. 



2. Calandrinia. — Corolla inferior. Calyx 

 2-sepalous, persistent. Fruit a capsule, 

 3-valved, co-seeded. 



