316 



Journal of the Department of Agriculture. 



This publication is the first of its kind in South Africa. Although 

 the fullest use has been made of field observation and the material 

 at the Division of Botany, Pretoria, the author feels that much 

 remains to complete our knowledge of the South African noxious 

 weeds; therefore. specimens of suspected weeds, with full information 

 about them, will be welcomed, and should be forwarded O.H.M.S. to 



GROUND LEVEL 



Fig. 3. — "Mexican Marigold" {Tagetex 

 m.huita). showing fibrous roots. 



Fig. 4. — "Spear Thistle" {Onicus 

 eanceolatun), showing the 

 tap root. 



the Chief, Division of Botany, Pretoria. In this way much valuable 

 knowledge will be obtained which can be used in future to supplement 

 the information contained in this work. 



In the text of the illustrated pamphlets entitled " South African 

 Weeds " which are from time to time published by the Division of 

 Botany, botanical terms are occasionally used. As these terms are 

 often not generally known to lavmen. and as it is difficult to write 



