XOXIOUS WEEDS I\ r TROPICAL COUNTRIES 611 



Botanical Name. 



Pteris aquilina 

 Sida retusa 

 Sorghum halapense 

 Tagetes minuta 

 Vittadenia australis 

 Xanthium spinosum 

 X. strumarium 



Common Name (if any.) 



Name of country. 



South Wales, etc 



Sorghum-weed |West Indies, Central India, etc. 

 Mexican Marigold [South Africa 

 Australian Daisy 'Ootacamund, etc. 

 Bathurst-burr New South Wales, Queensland, 



Cockle-burr etc. 



