ALIEN FLORA OF BRITAIN 141 
third argument sometimes used by Mr. Dunn, as telling 
ange seers ies oe} is the lateness of a first record. It i is one of 
nshir 
t will be a good result of the e publication of this book if it leads 
our field botanists to a oe greater accuracy of detail in the obser- 
Few flo ibi 
ie suivceeia: of the book leaves a general impression that its value 
would have been increased by a closer investigation of the least- 
touched and altered parts of the country. It is hardly possible that 
long and detailed field work, away from m places where aliens con- 
gregate, would leave any doubt of the native status of Carum 
a 
cliffs, especially in the West, would c e's r. Dunn’s view of 
many plants. Capsella Bursa-pastoris, in a small form found also 
in dry eae on ae about London and sleek Sestineta media, 
abundant a . Boreana, nee rotundifolia, Geranium pusillum, 
Conium macutatim in enormous quantities and without the least 
claim to alien status, Cliuiatte ee forming a large proportion of 
the turf of Ainiestbb cliffs and of the sand dunes in parts of 
LE 
Nepeta Cataria in quan about West cs eel , Parietari 
are all cases in point. Some of these are admitted by Mr. Deni 
as rare natives, but personal vouchers can be given for ‘il of them 
from localities that no one could doubt, and often in the greatest 
profusion. 
The records: of Euphorbia ee have some light thrown 
upon them in Journ. Bot. 5, p. 806; Holosteum umbellatum, 
loc, cit. pp. 189 & 217. pipamiaia occurs by: a wooded stream side 
in South Wales, a long way away from hous 
ome errors, which the asither will be et to correct in a soho 
edition, occur. Erysimum hieracifolium, a “Southern Euro 
weed,” is recorded by Nyman from Scandinavia, Holland, at 
France, Mid Europe, the Danube ae South and Mi d Russia. 
Tetragonolobus stliquosus should, of course, be removed from the 
Crucifere to the Leguminosae. Arabis paint is unodubtedly a native 
_of Skye. Tilia per Lit is cea eae in rocky woods about the 
above Mon in e Forest. Dillwyn’s © 
Fauna tah Flora pe eens (1848) records a native locality for 
Sedum sexangulare. Hieracium maculatum has, within the last year 
or two, been discovered quite native, in a small form, on the lime- 
stone rocks of West Yorkshire, by Mr. Ley and Mr. W. R. Linton. 
‘Atriplex patula, with remarks, ought, apparently, to be enclosed in 
if 
oO 
