WARWICKSHIRE STOUR VALLEY AND ITS FLORA. 
101 
Brailes are also some gorsey declivities which still show 
evidences of a former wilder condition. These are deep 
descents falling from an elevation of about 700 feet to about 
350 feet, and yield some of the plants already noticed, and, 
in addition, abundance of Apargia hirta , and Bidens tripartita. 
Coming, lastly, to the waters of the district, I am not able 
to give so full an account as I should have wished. The 
long dry summer of 1887 was unfavourable for the investiga¬ 
tion of these places; deep pits and pools were in many cases 
quite dried up, and the beds of several of the streams were 
without trace of water. The River Stour itself is very unlike 
the river I noticed in a former paper, the Anker, for in the 
Stour we see no great tufts of Butomus or Scirpus iacustris , or 
forests of Ly thrum Salicaria, or Glyceria a qua tic a, or floating 
masses of Sagittaria or Potamogeton natans , such as constantly 
occur in the Anker; but usually a narrow rapid stream with 
comparatively bare banks and but few aquatic weeds. Still, now 
and again we meet with aquatics in abundance, as at Halford 
Bridge, where Potamogeton flabellatus is wonderfully abundant 
and P. lucens may also be seen. P. perfoiiatus I saw in the 
river at Burmington, Sagittaria and Butomus sue both recorded 
from Honington, Ly thrum Salicaria and Myriophyllum spi- 
catum are recorded from Halford, and Hesperis matronalis 
Mr. Townsend records from near Honington. Among the 
plants recorded by Mr. Newbould from Honington are the 
rare Apium graveolens, Epilobium roseum, and Samolus Valerandi, 
and on the river bank near Burmington I noticed Petasites 
vulgaris abundant. 
The total recorded flora of the Stour Valley is now 688 
flowering plants, ferns and fern allies, and 122 mosses. I 
think it very probable that several more flowering plants will 
be added to the list by a more thorough examination of some 
of the woods and other places in those portions of the district 
remote from railway stations, and I am persuaded that the 
moss flora will be materially augmented, as the time given to 
the district has been too limited to allow this portion of the 
flora to be exhaustively worked. 
Classes of Citizenship. —These have been ably defined by 
Mr. Hewett C. Watson in the “ Compendium of the Cybele 
Britannica ” thus : “ Native. Apparently an aboriginal British 
species, there being little or no reason for supposing it to 
have been first introduced into this island by human agency ; ” 
as examples: Corylus, Beilis. “Denizens. Apparently wild, 
but liable to suspicion of having been introduced by human 
agency, whether by design or by accident; ” as examples: 
Chelidonium, Vinca. “ Colonist. A weed of cultivated land, 
