REMARKABLE INSTANCES OF PLANT DISPERSION. 



351 



the temperate regions of the world. It was noticed in France in the 

 seventeenth century, and a few years later in England. It is commoner 

 in Southern counties." * 



Gnaphalium luteo-album. — This occurs in Norfolk, Suffolk and 

 Sussex, Jersey, and all warm countries. In the Southern hemisphere it 

 has been found in S. Australia, Tasmania, New Zealand, Falkland and 

 Luegia, N.E. Africa, Norfolk Island, Madeira, California, Auckland. The 

 stigmas do not protrude but receive the pollen, as in groundsel, from the 

 anthers within the anther-cylinder. 



Impatiens fulva. — This North American plant has become naturalized 

 by river-sides in Surrey, Wilts, &c. It was introduced about 60 years 

 ago. 



Oxalis corniculata. — Ubiquitous, except in very cold countries ; possibly 

 indigenous in S.W. England, not north of it (Hooker) ; formerly abundant 

 in Malta, but has been displaced by 0. cernua, being now only found in 

 gardens. It is common in Jersey. 



Mimulus luteus. — Native of W. North America ; not uncommon by 

 river- sides from Skye southwards ; it is " thoroughly established in many 

 places in Worcestershire." 



Linaria Cymbalaria (Ivy leaved Toad-flax). — This is now common on 

 old walls, &c. It is thought to have escaped from the Chelsea Botanic 

 Garden, where it was first grown. 



Gentranthus ruber (Red Spur Valerian). — A native of S. Europe and 

 now thoroughly established, especially in S. England. 



* Amphlett and Rea's Botany of Worcestershire, p. 194. 



