(7) 



2. Synthyris. Calyx herbaceous, 4-part- 

 ed. Ovary 2-celled. 



3. Cordylanthus. Calyx spathaceous, 1- 

 sepalous. Ovary 2-celled. 



4. (Jtricularia. Ovary 1-celled, centrosper- 

 mous. 



b. Ovary divided into 4 partitions. 



1. Lycopus. Anthers 2-celled. Cells par- 



allel. Aquatic. 



2. Salvia. Anthers 1-celled. Filament 

 with a lateral branch, geniculate. 



3. Audibertia. Anthers 1-celled. Fila- 

 ment without lateral branch or spur. 



4. Acanthomintha. Stamens ascending. 

 Anthers 2-celled. Cells divaricate. A 

 pair of staminodia indicating the place 

 of the upper pair of stamens. 



II, Digynia, Trigynia and Tetragynia. 



1. Acaena. Calyx lobes valvate, tube spin- 

 ose. Fruit, akenes enclosed in the calyx. 

 Styles terminal. 



2. Alchemilla. Calyx urceolate, bracteo- 

 late, not spinose. Fruit, akenes enclosed 

 in the calyx. 



3. Chenopodium. Perigonium 3-5-parted, 

 not appendiculate. Fruit a compressed 

 utricle, inclosed in the perigonium. 



4. Festuca. Glumaceous. 



