170 AUSTRALIAN BOTANY. 



Bust.— TRICHOBASIS (UREDO) RUBIGO. (Natural 

 Order, Fungi.) P. 59. — A deadly enemy to cereals. Rust 

 in wheat is one of the greatest plagues to farmers. It is a 

 parasitical fungus. 



Rye.— SECALE CEREALE. (Natural Order, Gra- 

 minejE.) P. 34. — A cereal, cultivated for its grain, and 

 well known in these colonies. 



Sassafras (Victorian). — ATHEROSPERMA MOS- 

 CHATA. (Natural Order, Monimiace.e.) P. 64. — New 

 South Wales Sassafras, Doryphora Sassafras. See chapter 

 'Australian Vegetation,' p. 92. 



Scarlet Geranium. — See ' Pelargonium.' 



Screw Pine. — PANDANUS. (Natural Order, Pandan- 

 ACE.E.) Pp. 22, 192. — A tribe of over thirty known kinds ; 

 partial to the sea-coast, and forming dense masses of vegeta- 

 tion over considerable areas. One species, the Vacona of 

 Mauritius, is utilised for the manufacture of bags from its 

 leaves. Several species are found in tropical Australia. 

 Pandanus Forsteri, a native of Lord Howe's Island, is called 

 the Tent-tree from its spreading habit. One species, 

 Pandanus pedunculatus, reaches far north in Queensland, 

 but scarcely south of the Clarence, New South Wales. It 

 is called native bread fruit by the settlers, and by the 

 aborigines, inam. The leaves, like those of the Vacona, 

 might be utilized for sugar and other mats. 



Scrub Box. — HYMENANTHERA DENTATA. 

 (Natural Order, Violarie.e.) See chapter 'Australian 

 Vegetation,' p. S3. 



