﻿first cultivation in Denmark or North Germany. Still more 

 improbable does it seem, that the species in point can have been 

 brought here, in some unknown way, from more distant parts 

 of Europe where its cultivation is of earlier origin. I am intend 

 ignorant when A. Stclieriana was introduced into Europe; but it 

 was first described in 1835 by Besser ; and in 

 years elapsed before its cultivation was begun in the great countries 

 of Europe. We may also assume without h sitatkm that the 

 species was not transported immediately afterwards to its station 

 on the west coast of Skane. Consequently, even on the supposition 

 : Southern Europe, the time 

 i to have spread so greatly in 

 , besides, not easy to conceive how 

 this plant could have been conveyed such a distance, for, as I have 

 already mentioned, it is destitute of the appliances by means 

 of which plants in general are capable of migration. Nor is it 

 probable that seeds or fragments of the plant can have drifted with 

 the waves from remote countries, and been cast ashore on the coast 

 of Skane. Apart from the fact that such seeds or fragments would 

 be destroyed by lengthy immersion, that part of the shore on which 

 A. Stdieruuw occurs is not washed— under ordinary circumstances 

 —by the waves. Immediately above the normal watermark the 

 shore consists of a strip quite bare of vegetation, on account of its 

 being often under water. Above this strip lies another, on which 

 seaweed is cast up in stormy weather, and where the saline flora 

 grows. Next comes a zone consisting of sand mixed with shingle, 

 and it is here that we find, together with Psamma armaria, Elymtu 

 arenanm, &c, A. Melleriana. ' Still more improbable is it 'that the 

 plant can have come to this place among ballast, for the coast is 

 open, and no vessels put in there, i. -A -. A. ^tdleriana can 

 hardly occur in any part of Europe at such places as vessels 

 frequent for purposes of ballasting. 



Apart from the almost inexplicable circumstance that A. 

 Stellenana should have run wild in a country where it has not been 

 cultivated, as opposed to the fact that it has not done so in tracts 

 where it has been cultivated for long periods, another point, its 

 restriction to maritime stations, is a serious objection to the suppo- 

 sition that it has originated from gardens. Plants that are culti- 

 vated in gardens and spread thence, appear in the immediate 

 neighbourhood of those gardens. But nowhere in the botanical 

 literature to which I have had access, could I find any statement 

 that this is the case with the plant under consideration. A. Stel- 

 tenana has subsequently been met with in two other places in 

 Europe. In Denmark (the north of Zealand) one of my former 

 nupils, Dr Gunnar Andersson, found it in the summer of 1892 

 (Botamska Notuer, 1892, p. 197), in a locality quite similar to its 

 bcanian station, and in association with Psamma armaria (and 

 probably Elymus arenarius, which usually accompanies the said 

 grass). It also grows, as I have already mentioned, in an exactly 

 similar locality and in the same association, on the Irish coast. 

 In North America, too, where this species occurs, both to the 



