Freshwater Algse of S. of England. By W. & G. S. West. 511 
APPENDIX. 
The following notes of localities for Freshwater Algae in Middlesex 
(M.) and Surrey (S.) were made with the idea of preparing an ‘ Algologia 
Metropolitan, ’ a scheme which circumstances have compelled me to 
abandon. This short list may, however, be of use in stimulating others 
to note the forms of life which may be found close to their own doors. 
It is, as far as I am aware, almost the first record of Freshwater Algae 
gathered within the limits of London itself. 
Alfred W. Bennett. 
Coleochaete scutata Breb. S. Kew Gardens. 
Yaucheria sessilis DC. M. Botanic Gardens, Regent’s Park; 
S. Kew Gardens. 
Yar. caespitosa Yauch. S. Brown’s Millpond, Waddon. 
Sphaeroplea annulina Ag. S. Kew Gardens, occasional. 
Microspora vulgaris Rabli. M. Regent’s Canal, Camden Town. 
Cladophora flavescens Ag. M. Botanic Gardens, Regent’s Park. 
„ fracta Ktz. M. Regent’s Canal, Camden Town. 
Spirogyra nitida Lk. M. Regent’s Canal, Camden Town. S. 
Brown’s Millpond, Waddon. 
Penium digitus Breb. S. Brown’s Millpond, Waddon. 
Closterium lunula Nitzsch. M. Regent’s Canal, Camden Town. 
„ Leibleinii Ktz. S. Kew Gardens. 
Docidium clavatum Ktz. S. Kew Gardens. 
Euastrum didelta Rifs. S. Brown’s Millpond, Waddon. 
Tetmemorus granulatus Rifs. S. Brown’s Millpond, Waddon. 
Micrasterias denticulata Breb. S. Brown’s Millpond, Waddon. 
Arthrodesmus Incus Hass. M. Regent’s Canal, Camden Town. 
Eudorina elegans Ehrb. S. Brown’s Millpond, Waddon. 
Hydrodictyon reticulatum Lag. S. Tank, Kew Gardens; abun- 
dant in some years. 
Pediastrum Boryanum Men. M. Regent’s Canal, Camden Town. 
S. In the Wandle, Beddington. 
„ tetras Rifs. M. Regent’s Canal, Camden Town. 
„ sp. Coenobe quite compact ; cells deep green, about the 
size of those of P. tetras, each with a single central conspicuous 
pyrenoid ; marginal cells very variable in shape, each with two 
colourless horns proceeding from the margin, or from an angle 
very near the margin ; tips of horns slightly thickened, but not 
bidentate. M. Regent’s Canal, Camden Town. 
Scenedesmus obliquus Ktz. M. Regent’s Park. 
„ quadricauda Breb. M. Regent’s Canal, Camden Town. 
Tetraedron longispinum Perty. S. Kew Gardens. 
Protococcus viridis Ag. M. Regent’s Canal, Camden Town. 
Anabaena oscillarioides Bor. var. elongata. M. Regent’s Park. 
Oscillatoria limosa Ag. M. Botanic Gardens, Regent’s Park. 
S. Wandle, Beddington. 
„ tenuis Ag. M. Botanic Gardens, Regent’s Park. S. 
Wandle, Beddington. 
Chroococcus cohaerens Nag. M. Botanic Gardens, Regent’s Park. 
Microcystis protogenita Rbh. M. Regent’s Canal, Camden Town. 
