62 Sdme Notes on the Flora of Dartmoor. 
soil one would not expect to find many of the plants characteristic 
of our chalk downs, such as the rock-rose, the squat thistle, the 
wayfaring-tree, and the wild clematis. (The altitude may have 
to do with the absence of the latter, as it is a plant characteristic 
of the lowest or infer-agrarian zone of vegetation in Britain.) 
But some plants, which from the nature of the habitat one might 
have expected to be plentiful, were not seen, e.g. Silene inflata, 
Galium verum, Bryonia dioica, Genista anglica, and Campanula 
rotundifolia, while other species common with us occurred but 
sparingly, e. g. Senecio Jacobea, Tamus communis, and Euphorbia 
amygdaloides. ; 
Roses were scarce ; Rosa canina and R. arvensis were the only 
ones seen, and that sparingly. 
Of brambles, Rubus leucostachys and R. rhamnifolius were the 
prevalent forms. R. discolor (rusticanus), the common blackberry 
of lowland cultivated districts, was seen in two or three places 
on the lower ground only. 
Of hawkweeds, H. Pilosella was the only species seen. Of 
willows, the sallow (Salix cinerea) was the only species plentiful ; it 
often formed a small tree with a distinct trunk, about the size of 
a large plum-tree, instead of, as with us, a large bush branching 
from the root. S. aurita was found in a few places, and two 
osiers—S. viminalis and S. triandra (?)—by one stream ; but the 
common tree-willows, S. fragilis and S. alba, were not seen, nor 
the dwarf willow, S. repens, which one would have expected to be 
plentiful in the boggy places. Sedges, too, were much less 
plentiful than might have been expected, Carea muricata, flava, 
stellulata, and distans being the only species observed. 
Ferns are very abundant on banks, and in woods and wet 
places, especially the lady-fern, male fern, common polypody, 
Lastrea Oreopteris, Blechnum, and of course the bracken; also 
the black spleenwort (Asplenium Adiantum-nigrum), which is 
plentiful in most parts of Devonshire and Cornwall. The hart’s- 
tongue and wall rue—plentiful on calcareous soils in Devonshire, 
were only found on one or two old walls. The filmy fern 
(Hymenophyllum Tunbridgense) grew among mosses, on the huge 
boulders of granite in the bed of a torrent. 
Among the plants observed, besides those previously men- 
tioned, the following may be named :—Ranunculus Lenormandt, 
Corydalis claviculata, Fumaria confusa, Lepidium Smithii (plenti- 
ful), Hypericum Androsemum, Oxalis stricta (garden weed), Linum 
angustifolium, Coronilla varia (garden escape), Alchemilla vulgaris, 
inanthe crocata (common), Valerianella dentata, Cuscuta Epi- 
thymum (up to altitude of 1400 ft.), Rhynchospora alba. 
