THE FRESH-WATER ALO.E OF ESSEX. 1 75 



S. orthospira, Nag. Cooke, t. t,^, f. 2. In pools, Troyes 

 Wood, near ^^'itham (E.Ci.V.). 



S. orbicularis, Has.s. Cooke, t. 34, f. 1. In ponds, Kelvodon ; 

 Maldon {E.C.y.). 



S. bellis, Hass. Cooke, t. 3 1, f. 2. In [londs, Kehedoii ; 

 Braxted (^E.C.W). \'ar. //^xAr///;;/, Hass. In ponds, Feering (E.G.W). 



S. porticalis, Vauch. Cooke, t. 35. \'ar. (jiiiui>ia, Hass. In 

 ponds, Kclvedon (E.G.\'.) ; Epping. \'ar. i/<c'///ii/m, Hass. In 

 ponds, Rivenhall (E.CI.^^) ; Epping. 



S. condensata, \auch. Cooke, t. 36, f. i. In pools, Kel- 

 vedon (E.CI.^^). 



S. longata, A'auch. Cooke, t. 36, f. 2. ^'al■. communis, Hass. 

 In ditches. High Beach (A.H.H.) ; Kelvedon ; Easthorpe (E.G.V.) ; 

 Walthamstow ; Snaresbrook. \"ar. fiirpis, Kutz. In ditches, Kel- 

 vedon (E.CI.^^) ; High Beach. 



S. flavescens, Hass. Cooke, t. 37, f. i. In pools. High 

 Beach (A.H.H.) ; Massing Heath (E.(;.Y.). Var. gnxci/is, Hass. 

 In pools, Wanstead Flats (A.H.H.); Kelvedon (E.G.V.). 



S. insignis, Hass. Cooke, t. 38, f. i. In streams, Kelvedon 

 (E.G.V.). 



S. quadrata, Hass. Cooke, t. 39, f. i. In pools, Kelvedon 

 (E.G.V.). 



S. weberi, Kutz. Cooke, t. 39, f. 2. \'ar. iiuvqiialis, Hass. 

 In pools. High Beach (A.H.H.) ; Walthamstow. 



S. tenuissima, Hass. Cooke, t. 39, f. 3. In pools, High 

 Beach; Walthamstow; Kelvedon (E.(i.V.). 



Zygogonium ericetorum, D. By. Cooke, t. 42, f. 2. On 

 heaths, Tiptree Heath (E.G.V.). 



Mesocarpus parvulus, Hass. Cooke, t. 42, f. 3. In ponds, 

 Epping (A H.H.); Kelvedon (E.CI.V.). 



M. scalaris, Hass. Cooke, t. 42, f. t. In ditches. Abridge; 

 Kelvedon (E.G.V. ). 



M. pleurocarpus, D. By. Cooke, t. 43, f. i. In pools, 

 Peering (E.G.^'. ) ; Walthamstow. 



Staurospermum gracillimum, Hass. Cooke, t. 43, f. 3. 

 In bog pools, High Beach (A.H.H.) ; Snaresbrook. 



S. capucinum, Kutz. Cooke, t. 44, f. i. In ponds, High 

 Beach (A.H.H.) ; Snaresbrook. 



S. viride, Kutz. Cooke, t. 44, f. 2. In ditches, etc., Royden 

 (A.H.H.). 



