KEY! 147 



304. Stamens on a disk, 10 205 



Stamens not on a disk. Styles 4- (or 5), always as 

 many as the sepals. Petals rarely wanting. Pod 4- (or 5-) 

 valved, the valves opposite the sepals. Little, matted herbs, 

 with filiform leaves, the upper short and awl-shaped, their 

 axils bearing clusters of minute leaves. Petals much longer 

 than the sepals. Stamens 10. Sagina nodosa, Fenzl. 



30o. Disk conspicuous and glandular, 10-notched. Ovary 

 imperfectly 3- to 5 -celled. Styles 3 (to 5). Sepals and leaves 

 very fleshy, the latter ovate or oblong. Flowers solitary, 

 axillary, white, dioeciously polygamous. Maritime per- 

 ennials. Honkenya peploides, Ehrh. 



Disk inconspicuous, like a small gland. Petals rarely 

 slightly notched. Styles 3. Leaves rigid, awl-shaped, bristle- 

 form, or soft and fililbrm-linear. Flowers mostly white, soli- 

 tary and terminal, or cymose. Alsine. 



906. (189.) Calyx 2-cleft, half superior. Petals 5, coher- 

 ing at the base. Stamens 7-12. Style deeply 5- to 6-parted. 

 Leaves fleshy, alternate, obovate or wedge-form. Flowers 

 sessile, pale yeUow. Fortulaca oleracea, L. 



Calyx 5-sepalled, or 5-toothed 207 



207. Calyx tubular, 5-toothed, the teeth linear. Styles 5, 

 alternate with the calyx-teeth. Stamens 10, those opposite 

 the petals adhering to their claws. Pod 1- celled, opening 

 at the top by 5 teeth. Annuals or biennials. Leaves linear. 

 Flowers large, i^urple, on long peduncles. Seeds black. 



Agrostemma Githago, L. 



Calyx of 5 sepals. Stamens 10 (rarely 5). Leaves 

 simple or trifoliolate 208 



908. Leaves trifoliolate, stipulate, alternate, or radical. 

 Stamens cohering at the base. Pod deeply 5-lobed, 5- 

 valved, 5-celled. Petals yellow, violet, or white with red- 

 dish veins. Oxalis. 



Leaves simple, opposite, or fascicled 209 



909. A 10-notched disk, bearing the stamens. Sepals 

 and leaves very fleshy. (205) Honkenya peploides, Ehrh. 



Disk none 210 



