48 XVII. PORTULACEjE. 



Tribe II. — Alsine^e. 

 Cerastium, Linn. 



vulgatum, Linn. — Mouse-ear Chickweed. Europe. 

 Stellaria, Linn. 



pungens, Brongn. 



glauca, Withering. 



media, Linn. — Chickweed. Europe. 



flaccida, Hook. 

 *Spergula, Linn. 



arvensis, Linn.- — Corn Spurry ; said to enrich the milk of cows- 

 fed on it in Europe. 

 *Spergularia, Pcrs. 



rubra, Pers. — Common Sand Spurry. Europe. 

 Sagina, Linn. 



procumbens, Linn. — Pearlwort. 



Tribe III. — PolycarpevE. 

 Drymaria, Willd. 



diandra, Blume. 

 Polycarpon, Linn. 



tetraphyllum, Linn. f. 

 Polycarpsea, Lour. 



Section Planckonia. 

 synandra, F. v. M. 

 longiflora, F. v. M. 



var. leucantha, Benth. 

 Burtoni, Bail. (Fig. 31.) 

 spirostyles, F. v. M. — Copper-plant of Iierberton. 



Section Polycarpia. 

 corymbosa, Lour. 

 breviflora, F.v.M. (Fig. 32.) 



Order XVII.-PORTULACE^. 



Portulaca, Linn. — Purslane plants. Fruit a Pyxidium. 



oleracea, Linn. — Pigweed. " Thukouro" of Cloncurry natives. 

 The whole plant devoured by fowls; the seed used for 

 food by the natives ; a splendid substitute for spinach. 

 var. grandiflora, Benth. 

 var. *sativa, DC. — A European salad-plant. Growth erect. 



