168 J. J. Koize 



ing than the Grey Poplar and stand more frost. Do not 

 sucker and propagated by means of cuttings. 



Populus iialica (Lombardy Poplar). — Is useful for shelter against 

 wind and suckers freely, but its timber is not of much value 

 and should therefore not be planted in preference to the 

 other poplars mentioned. 



The Willows (Salix sp.) are not so useful as the poplars, and 

 should not be planted except along streams for ornament. 



The Common Oak (Quercus pedunculata) likes a cool, wet 

 winter but thrives also in the moist mountains of eastern 

 South Africa. Is subject to pustular oak scale. Not re- 

 commended on a large scale for South African conditions. 



Rohtnia pseudacacia (Robinia or the False Acacia) is a hardy 

 tree, producing excellent fencing poles. Is very drought 

 resistant but grows best in moist situations where there is 

 some lime in the soil. Suckers freely and thus suitable for 

 planting in dongas to stop erosion. 



Non-Deciduous. 



In this sub-division the Gums or Eucal^pts take the first place. 

 Owing to their rapid growth and the strong, durable timber and 

 excellent firewood yielded by many they have been widely 

 planted in South Africa and have become a very familiar land- 

 mark in South African scenery. 



Contrary to the popular idea that all Eucalypts are Blue Gums, 

 i.e., Eucalyptus glohuluSy there are about 150 or more species 

 having very varied characteristics and demanding very diverse 

 conditions for their successful growth. 



They all produce hardwood timbers, some much more valuable 

 than others. Unfortunately their efficient seasoning is a matter 

 of great difficulty and they are probably the most refractory 

 woods in the world to deal with in this respect. Appended are 

 a few notes on the most important species in so far as the Cape 

 Province is concerned. 



