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REMARKS 



This grass is very c ommon. 



Very common on the shores every whsre in the 

 tropics. 



This is very common on Flat Island, and a most 

 disagreeable plant it is to those who walk among it 

 with woolen trowsers on, on account of the hairs by 

 which its spears or the points of its seeds are barbed. 

 These spears work inward and enter the skin. Often 

 causing sores by some of the hairs remaining in the 

 flesh, when the " spear " is pulled out. 



These two species are now naturalised on Flat 

 Island as well as in Mauritius, to which they have 

 been introduced. 



This has also heen introduced to these Islands 

 from India. It is much used for thatching in many 

 parts of the group, and for this purpose it is exten- 

 sively grown in Mauritius. Its roots are not used here 

 as fragrant screens, as they are in India. 



This is very common on Flat Island, but no use 

 is made of it in the way of extracting oil from it in 

 Mauritius. This was and perhaps still is a small indus- 

 try in Ceylon. 



Very common almost everywhere in the tropics 

 and warm temperate climates. 



This is also common like the east. 



Also very common in all the zones of the warm- 

 er regions of the world. 



Common in the tropics of both hemispheres. 



Common in the crevices of rocks and among 

 boulders, spread throughout the tropica oE the old 

 world. 



Found only at one place on Flat Island, growino* 

 on a date tree. 



J. HORNE, 



