44 THE FLORA OF THE ALPS 



4. SapoNARIA, L. 



Flowers in compound cymes; calyx tubular; petals 5, 

 clawed ; seed-vessel bursting by 4 valves ; styles 2 ; disk 

 small. 



6*. officinalis y L., Soapwort; fields and wet places. 5. 

 Vaccariay L. ; stem ascending, 1 5-20 in., flowers pink, 

 leaves lanceolate, acute, the upper ones somewhat am- 

 plexicaul ; cultivated land. The following are alpine : — 

 5. ocymoideSy L. (PI. 17); stem decumbent, petals pink 

 or lilac, leaves broadly lanceolate; Switzerland, Tirol, 

 Carinthia, Pyrenees. vS". lutea, L. ; flowers crowded, 

 petals yellow, violet at the base, stem erect, simple, 

 leaves linear; very rare; Monte Rosa, Dauphiny. S. 

 ccespitosa, DC. ; plant casspitose, flowers pink, leaves 

 linear, coriaceous, keeled; higher Pyrenees. 



5. SiLENE, L. 



Calyx inflated, 5 -toothed ; petals 5, clawed, with 2 

 scales at the base of the blade, forming a corona ; disk 

 columnar ; ovary partially 3-celled ; styles 3 ; seed- 

 vessel bursting into 6 valves. 



The following lowland species are English, all with 

 white flowers : — vS. inflata^ Sm. {S. CucubaluSy Wib.), 

 Catchfly, Bladder Campion, common ; vS. nutans^ L., 

 Nottingham Catchfly, frequent; 5. Otites, L., Switzer- 

 land ; 6^. conica, L., Dauphiny, Pyrenees ; »S. gallica, L., 

 Dauphiny, Pyrenees, Jura ; vS. noctiflora, L. {Melandriurn 

 noctijlorum, Fr.), flowers fragrant at night, frequent. 

 Also in the southern districts: — vS. Armeriuy L., with 

 small pink flowers, rarely white, and broad ovate leaves ; 



