CARYOPHYLLE^E 55 



much larger flowers and very swollen stem-nodes, occur 

 also, the former in dry, the latter in moist pastures. 



20. SPERGULA, L. 



Petals 5 ; sepals 5 ; stamens 5-10 ; styles 5 ; capsule 

 opening by 5 entire valves ; leaves very narrow, with 

 small scabrous stipules. Small herbs ; not alpine. 



5. arvensis, L., Spurrey; very common in cultivated 

 land. 



21. SPERGULARIA, L. 



Sepals 5 ; petals 5 ; stamens 2-10 ; styles 3 ; capsule 

 opening with 3 valves; leaves linear, with scarious sti- 

 pules. Prostrate herbs ; not alpine. 



S. rubra, Presl (Arenaria rubra, L.), with pink flowers 

 and flat leaves ; and ,S. media, Pers. (inarina, Leb.), with 

 pale pink flowers and fleshy leaves, both with decumbent 

 habit; sandy places. vS. segetalis, Fnzl., with white 

 flowers ; fields ; Switzerland, occasional. 



Order XIIL PORTULACACE^E. 



Petals 4 or more ; sepals 2 ; stamens 3 or more ; style 

 simple or trifid. A small order, chiefly American ; not 

 alpine. 



I. MONTIA, L. 



Flowers minute, white; petals 5, united at the base; 

 stamens 3 ; seed-vessel a globose capsule with 1-3 tuber- 

 culated seeds. 



M . fontana, L. ; marshy places ; the form M. minor, 



