IN EXTRA-TROPICAL COUNTRIES. 25 



Andropogon Martini, Roxburgh. {A.jkmoms, Nees.) 



Tropical Asia and Australia. The fragant Citronella Oil is 

 distilled in Ceylon and elsewhere frota the leaves of this 

 \ species. General Martin observed that cattle are voraciously- 

 fond of this grass ; but it imparts its fragrance to meat and 

 milk. Regarded by Munro a variety of A. Schoenanthas. 



Andropogon muxicatus, Retzius. 



India. A swamp-grass, with deUghtfuUy fragrant roots. Ac- 

 cording to Dr. G. Kingj the fragrant Indian mats are made of 

 this grass. 



AndropogOU nutans, Lirine. {Sorghum nutam, Gray.) 



North America. A tall, nutritious, perennial grass, content 

 with dry and barren soil. 



Andropogon pertusus, Willdenow. 



South Asia, Tropical and Sub-tropical Australia. Perennial. 

 Mr. Nixon, of Benalla, regards it as one of the best grasses to 

 withstand long droughts, while it wiU bear any amount of 

 feeding. It endures cold better than some other Andropogons 

 of Queensland, accordiag to Mr. Bailey's observations. 



Andropogon refractus, R. Brown. 



North and East Australia, Polynesia. Mr. Bailey observes of 

 this perennial grass, that it is equally excellent for pastures and 

 hay, and that it produces a heavy crop during summer ; the root 

 is fra>grant. 



Andropogon saccharatus Roxburgh.* (Sorghum saecharatum, 

 Pers.) ' 



Tropical Asia. The Broom Corn. A tall annual species, 

 splendid as a fodder-grass. Produces of all grasses, except 

 the Teosintd, the heaviest fodder-crop in warm climes. From 

 the saccharine juice sugar is obtainable. A sample of such, 

 prepared from plants of the Melbourne Botanic Garden, was 

 shown at the Exhibition of 1862. This Sorghum furnishes 

 also material for a well-known kind of brooms. A variety or 

 a closely allied species yields the Caffir Corn (A. CafErorum, 

 Kunth). The plant can be advantageously utilised for pre- 

 paring treacle. For this purpose the sap is expressed at the 

 time of flowering, and simply evaporated ; the yield is about 

 100 gallons from the acre. In 1860 nearly seven millions of 

 gallons of sorghum treacle were produced in the United States. 

 The stem can be used as a culinaiy vegetable. 



