Naturalisation in Extra-Tropical Countries. 35 



Anacylus Pyrethrum, De Candolle. 



Countries near the Mediterranean Sea. The root of this peren- 

 nial herb is used medicinally, chiefly as an anodyne for mastication, 

 in infusion against rheumatism ; even antiparalytic properties are 

 ascribed to it. The plant is recognised by many pharmacopoeas. 



Ananas sativa, Schultes.* 



South- America. The famous " Pine-apple " plant. Some varie- 

 ties ripen their fruit as far south as Port Jackson. Mr. Th. Mead 

 remarks, that in Florida the plant is well sustained by merely 

 piling a little brush over it during the three cool months of the 

 year. Fruits even to 10 Ibs. weight have there been produced. 

 Thrives to perfection just outside the tropics of East-Australia, 

 fruits up to 10 Ibs. having been realised there [Edgar]. From 

 the Bahamas alone about 50,000 worth are now annually exported. 

 The leaf -fibre is exceedingly fine and so strong, that a rope of 

 3|- inch circumference will bear a strain of 57 cwt. A beautiful 

 fabric can be made from it [W. T. Dyer]. Miller distinguished 

 already this plant generically. 



Andropog-on annulatus, Forskael. 



Intra- and sub-tropical Africa, Asia and Australia. Recom- 

 mended by Mr. Walter Hill as a meadow-grass. Dr. Curl observes, 

 that in New Zealand it is both a summer- and autumn-grass, that 

 it does not grow fast in winter, but at the period of its greatest 

 growth sends up an abundance of foliage. 



Andropog-on argenteus, De Caudolle. 



Pronounced by Leybold to be one of the best pasture-grasses of 

 the Cordilleras of Chili. 



Andropog-on aus trails, Sprengel. (Sorghum plumosum, Beauvois.) 



Tropical and also Eastern extra-tropic Australia as far south as 

 Grippsland. Brought under notice by Mr. Ch. Moore as an admirable 

 perennial pasture-grass. The allied A. serratus (Thunberg) of 

 tropical Australia, Southern Asia, China and Japan, serves similar 

 purposes. General Sir H. Macpherson proved some Indian Andro- 

 pogons well adapted for Silos. 



Andropog-on avenaceus, Michaux. (Sorghum avenaceum, Willdenow.) 

 Northern and Central America. This tall perennial grass lives in 

 dry sandy soil, and should be tried for growth of fodder. 



Andropog-on bombycinus, E. Brown. 



Australia. This robust grass, which is generally well spoken of 

 by graziers, seems to like a somewhat strong soil, and is often 

 found among rocks on hill-sides. The bases of the stems of this 

 species, like of several others of the genus, are highly aromatic 



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