ryS THE FRESH-WATER ALG/E OF ESSEX. 



CHROOLEPID.4^:. 

 Chroolepus aureus, Linn. Cooke, t. 72, f. i. On trunks, 

 Epping Forest. 



CH.^^.TOPHORACE.^. 



Stigeoclonium thermale, Br. Cooke, t. 73, f. 2. In 



springs, etc., Easthorpe (E.^T.^^) ; Snaresbrook. 



S. nanum, Dill. Cooke, t. 74, f. 2, In streams, Braxted 

 (E.G.V.). 



Draparnaldia glomerata, Ag. Cooke, t. 75, f. i. In pools, 

 Kelvedon (E.G.V.) ; Loughton. 



D. plumosa, Vauch. Cooke, t. 76, f. i. In pools, Kelvedon 

 (E.G.V.) ; Snaresbrook. 



Chaetophora pisiformis, Roth. Cooke, t. 77, f. i. On 

 submerged plants, Easthorpe (E.G.V ); Walthamstow. 



C. tuberculosa, Roth. Cooke, t. 78, f. i. In pools, Riven- 

 hall; Coggeshall ; Kelvedon (E.G.V.). 



C. elegans, Roth. Cooke, t. 77, f. 2. On submerged plants, 

 Eeering ; Kelvedon (E.G.V.) ; Snaresbrook. 



C. endivaefolia, Ag. Cooke, t. 78, f. 2. In ditches. Riven- 

 hall ; Kelvedon (E.G.V.). 



Colseochaete scutata, Breb. Cooke, t. 79. On Hypmtm, 

 Kelvedon (E.G.V.). 



The species of Chytridiece have latterly been removed from the 

 Algie, and placed in closer relation to the Fungi. 



chroococcace.f:. 



Aphanothece prasina, Br. Cooke, t. 5, f. 4. In ditches, 

 bogs, etc., Kelvedon (E.(i.\\). 



This seems to be the same as Pahnella niooreana. 



NOSTOCHINE.*:. 



Nostoc commune, Vauch Cooke, t. 91, f. 4. On the 

 ground, Kelvedon (E.G.A'.). 



Anabaena hassallii, Nord. Cooke, t. 93, f. 3. In ditches, 

 Kelvedon (E.G.^^). 



Cylindrospermum macrospermum, Kutz. Cooke, t. 95, 

 f, I. In ditches, Kelvedon; Yeldham (E.G.V.). 



LYNGBY.^. 

 Spirulina jenneri, Kutz. Cooke, t, 96, f. i. In stagnant 

 water, Kelvedon ; Easthorpe (E.G.V,) 



