28 THE FLORA OF THE ALPS 



Tribe CAMELINE^E. Silicule short, dehiscent, pyriform 

 or turbinate ; seeds in 2 rows. 



26. CAMELINA, Crntz. 



Flowers yellow ; leaves auricled. Not alpine. 



C. sativaj Fr., Gold of Pleasure ; C. fcetida, Fr. ; and 

 C.sylvestris, Fr. ; are weeds, chiefly among flax, in Southern 

 Switzerland and Pyrenees. 



Tribe LEPIDINE^E. Seed-vessel short (silicule), dehis- 

 cent, and compressed at right angles to the septum ; radicle 

 incumbent ; flowers white. Genera 27-29. 



27. CAPSELLA, Moench. 



Valves of silicule boat-shaped, keeled ; seeds numerous ; 

 flowers small. 



C. bursa-pastoris, Moench., Shepherd's Purse; every- 

 where. C. pauciflora, Koch; lower leaves 3-cleft, upper 

 lanceolate, undivided, raceme 3-6 flowered ; Switzerland, 

 Tirol, rare. C. rubella, Reut. ; petals not longer than 

 the sepals, which are streaked with red ; Western Switz- 

 erland, rare. C. procumbent, Fr. ; racemes elongated, 

 leaves pinnatifid ; Fribourg. 



28. SENEBIERA, DC. 



Silicule didymous, 2-seeded ; flowers very small. Not 

 alpine. 



S. CoronopiiS) Poir. ; silicule deeply wrinkled ; a com- 

 mon weed. .S. didyma ; silicules didymous ; occasional. 



29. LEPIDIUM, L. 



Sepals very small; petals very small or o; silicule 

 oblong, 2-4-seeded. Not alpine. 



