BEITTEN ON SPONTANEOUS EXOTICS. 931 



ing every year in greater force." Phyt. uL, 338. N.S. It has now disap- 

 peared thence. A native of Africa. 



M. maritima, Br. " Between Dover and St. Margaret's Bay, appar- 

 ently wild, there being no garden either above or below the cliff for some 

 distance. Miss Harvey." Co well's Floral Guide to East Kent, published 

 1839, p. 73. In Mag. Nat. Hist, vii., 271, this locality is described as 

 being " under the cliff about half way between St. Margaret's and Dover, 

 in various places for a quarter of a mile, where the banks are grassy." 

 In this neighbourhood it a^Dpears to be at least naturalised ; for Mr. W. G. 

 Smith informs me that on June 13th, 1864, he observed it growing luxu- 

 riantly here and there between Folkestone and Dover for some little distance. 

 It " occurred once or twice near Battersea," (H.B.P. 693), probably only 

 as a straggler from cultivation ; and at the Wandsworth waste ground, 

 where it was " very scarce." Phyt. Hi., 338. N.S. 



M. littorea, Br. " Appeared for a season or two about Wandsworth 

 steamboat pier in profusion." H.B.P. 693. This, like the last, is a native 

 of the South of Europe. 



Ardbis alpina, L. This common ornament of our gardens in early 

 spring has established itself very plentifully near the Koyal Gardens at 

 Kew, close to the gate by the riverside ; here it extends over several yards. 

 I am informed that it has also occurred for twelve years on a wall at 

 Highgate, Middlesex. It appears from the New Botanist's Guide, p. 517, 

 to have been included in a list of plants given in Barry's History of Orkney, 

 but was without doubt erroneously so recorded. A native of Switzerland 

 and the Pyrenees. 



A. arenosa, Scop. Is recorded by Mr. Irvine, in H.B.P. 798, from 

 the Wandsworth steamboat pier locality ; also doubtfully in Phyt. Hi., 338. 

 N.S., where it is said to have been " very common in the Wandsworth 

 station every season." A native of Europe. 



Diplotaxis erucoides, D.C. " Very plentiful near the steamboat pior, 

 Wandsworth." H.B.P. 706. I observed a large plant of it in this locality 

 in 1862. See Phyt. vL, 412. N.S. A native of the South of Europe. 



D. viminea, Keich. " Waste places at St. Peter's Port, Guernsey, (Rev. 

 W. W. Newbould)." E. Bot. ed. 3., i. 142. It may have been merely an 

 introduction to this locality. 



Moricandia arvensis, D.C. ? Recorded doubtfully from Wandsworth 

 steamboat pier, by Mr. Irvine (Phyt. Hi. 334. N.S.) A native of the South 

 of Europe. 



