180 AUSTRALIAN BOTANY. 



cress (Nasturtium palustre) is common to these colonies. In 

 New South Wales it is called Native Cabbage, and is used 

 as a pot herb. 



Wattles.— ACACIA. See 'Black Wattle/ pp. 54, 103; 

 ' Silver Wattle/ pp. 54, 172 ; 'Golden Wattle/ pp. 54, 124 ; 

 ' Blackwood/ or Lightwood, p. 194 ; also chapter 'Australian 

 Vegetation/ p. 85. 



Wheat.— TRITICUM. (Natural Order, Gramine^e.) 

 Pp. 6, 16, 51, 62, 67, 183. — Probably the most valuable of 

 all cereals, and upon which the prosperity of South Australia 

 greatly depends. It is cultivated now in hundreds of 

 varieties, and almost every year new ones appear. They 

 are produced by very careful selection of seeds from plants 

 that show a tendency to vary in the direction desired, and 

 cultivate separately till the result is obtained. 



White Cedar.— MELIA AUSTRALIS. (Natural Order, 

 Meliace^e.) See chapter 'Australian Vegetation/ p. 92. 



Willow. — SALIX. (Natural Order, Salicine^e.) Pp. 25, 

 42, 46, 64. — This graceful deciduous tree, with its pendulous 

 boughs, is thoroughly acclimatised in Australia, and very 

 abundant in our public and private gardens where the soil 

 is suitable to its growth. It requires moist ground, and is 

 seen to the best advantage growing on the banks of rivers and 

 watercourses. The wood and twigs are used for a number 

 of purposes. The Weeping Willow (Salix Babylonicd) is 

 the finest growing species. The willows used for basket- 

 making are called Osiers — Salix Viminalis, S. Forbeya?ia, 

 S. Rubra, 5. Vitellina, etc. ; and their cultivation in moors 

 and along rivulets, where scarcely anything else could be 

 grown profitably, rs much to be recommended, on account 

 of the demand for basket manufacture. 



