VIII. CRUCIFER^E. 33 



*Argemone, Linn. 



mexicana, Linn. — Prickly Poppy; a noxious weed. Flowers 

 dark yellow. Seeds said to yield by ordinary pressure 

 about 37 P er cent, of oil, the acridity of which when 

 applied to wood is supposed to repel the attacks of white 

 ants and borers ; also used for burning purposes and as 

 a purge ; poisonous if taken in quantity. 



var. ochroleuca, Bail. — The kind with cream-coloured 

 flowers ; also a bad weed. 



Suborder FUMAME^. 



*Fumaria, Linn. 



parvinora, Lam. — Small-flowered Fumitory. Europe, 

 officinalis, Linn. — The Common Fumitory. Medicinal; said 

 to be laxative and diuretic. 



Order VIII.— CRUCIFER^. 



Tribe I. — Arabide^e. 

 Nasturtium. R. Br. — Fruit a Siliqua. 



'-^'officinale, 7?. Br. — Common Water-cress, 

 palustre, DC. — Marsh Water-cress. This plant was much 

 used by the pioneers of South Australia as a salad, 

 especially by those suffering from scurvy, so prevalent in 

 those days. 



Cardamine, Linn. 

 stylosa, DC. 



hirsuta, Linn. — Bitter Cress, 

 eustylis, F. v. M. (Fig. 15 bis.) 

 heterophylla, Hook. 



Tribe II. — Alyssine;e. 

 Alyssum, Linn. — Madwort. 

 linifolium, Steph. 



Tribe III.- — Sisymbriete. 

 ^Sisymbrium, Linn. 



officinale, Scop. — Hedge Mustard. Europe. 

 Iris, Linn. — London Rocket. Europe. 

 *Conringia, Reichb. 



orientalis, Duin. — Hare's-ear Treacle Mustard. Europe, 

 c 



