CABBAGE FAMILY 



51 



20. SuBULARiA (Awl-wort). A small submerged aquatic herb ; 

 leaves all radical, subulate (awl-shaped) ; flowers few, small, white, 

 on a scape, 1—3 in. long, sometimes perfected under water. 

 (Name from the Latin siibula, an awl.) 



I. S. aqiidtica (Water Awl-wort).— The only species, common 

 on the gravelly bottoms of mountain lakes. — Fl. June— August. 

 Perennial. 



2 1 . Capsella (Shepherd's Purse). — Annual \^&xh'$,, flowers small, 

 white ; pedicels slender ; pods compressed, inversely heart-shaped ; 



cochleXria dAnica 

 {Danish Scurfy-Grass). 



subulAria aquAtica 

 (JVater Awl-wort). 



valves boat-shaped, keeled, but not winged. (Name, the Latin 

 diminutive of capsa, a box. 



I. C. Biirsa-pastbris (Common Shepherd's Purse). — A com- 

 mon weed, to be found in almost every part of the world, varying 

 considerably in size, and the division of its leaves. The whole 

 plant is more or less rough with branched hairs ; root tapering ; 

 stem 6 — 16 in. high, branched ; radical leaves pinnatifid ; cauline 

 leaves auricled ; petals sometimes converted into stamens. — Fl. 

 nearly all the year round. Annual. 



22. CoRONOPUS (Wart-cress). 

 E 2 



-Branched, prostrate herbs ; 



