SAPINDACE^ 53 



in tropical South America, where its nearest allies 

 are indigenous. In Britain it is cultivated as an orna- 

 mental plant, often becoming a weed in gardens and 

 their neighbourhood. In some of the warmer parts of 

 England it is quite naturalised. 



Oxalis violacea, L. A garden plant which has been 

 found as a casual in Britain. A native of North 

 America. 



I 



SAPINDACE^. 



Acer platauoides, L. The Norway Maple. Frequently 

 cultivated in gardens and parks, and occasionally recorded 

 in Floras as an escape. 



Acer pseudoplatanus, L. The Sycamore. Very 

 generally planted, and often self-sown, so that it comes 

 sometimes to be mistaken for a native tree. 



^sculus Hippocastanum, L. The Horse Chestnut. 

 Of very general cultivation, and occasionally self-sown. 

 It was probably introduced from Turkey in the seven- 

 teenth century. 



Staphylea pinnata, L. Native of the forests of Central 

 Europe, extending as far as Syria. Much cultivated in 

 England from as early as the seventeenth century, 

 and, from the first, showing a tendency to establish itself 

 outside gardens. Ray, in 1670, saw it under such con- 

 ditions " non iamen ita copiosa ubi spontaneam assuere 

 xiusim," 



