156 F. E. Fritsch and Winifred M. Parker. 
Anemone nemorosa 
Viola tricolor 
Cerastinm viscosnm 
Stellaria graminea 
Spergtilaria arvensis 
Hypericum pnlchrum 
Ulcx europeeus (cf. p. 149) 
Digitalis purpurea 
Teucrium Scorodonia 
Plantago lanceolata 
„ major 
Rumex Acetosella 
crispus 
obtusifolius 
„ minor (upright form.cf. p. 151) Car ex sp. 
Cytisusscoparius (cf.p. 149,footnote) Anthoxanthum odoratum 
Agrostis alba 
„ vulgaris 
Festuca ovina 
„ rubra 
Holcus lanatus 
„ mollis 
Browns madritensis 
„ mollis 
Lolixim perenne 
Cynosurus cristata 
Dactylis glomerata 
jf uncus cffusns 
Trifolium pratense 
Rubus spp. (inch R. Idceus) 
Potentilla erecta 
Galium saxatile 
Achillea Millefolium 
Hieracium boreale (agg.) 
Hypochceris radicata 
Erigeron canadense 
Centaurea nigra 
Chrysanthemum Leucanthemum 
Solidago Virgaurea 
Campanula rotundifolia 
Veronica officinalis 
Apart from these, all the members of the Callunetum (except 
Pinus and Blechnum Spicant) occur more or less abundantly in the 
immediate neighbourhood of the pathways. Near the upper end 
of valley A (but below the burnt zone) the Callunetum is extending 
across the narrow pathway to the elimination of the other forms 
previously found there. 
B.—Recolonisation on the Hindhead Heath. 
A considerable number of observations have been made on the 
recolonisation of burnt portions of the heath. A small area of the 
common situated on the south-eastern slope of valley A had been 
burnt some little time (1909) before we commenced work and a 
much larger portion (the greater part of which had already been 
mapped) was burnt in August, 1911. The latter may be considered 
first. Vegetation soon reappears on such burnt areas. As early 
as January (1912) Ulex minor (also U. europceus in the valley) was 
found sprouting afresh, while numerous seedlings of Ulex were 
growing on the ground. A considerable area of the burnt ground 
bore a growth of Pyronema confluens, but apart from this and the 
Ulex there was no other vegetation. In April of this year the fungus 
