260 CRYPTOGAMIA-ALG^E. 



3. B. Johnstoni, " filaments entangled, green, containing a 

 single series of four-parted granules." GREV. in lift. 



Ilab. On slate rocks near Berwick, at high-water mark. 

 Forms a very thin light-green smooth stratum on the rocks. 



164. SCHIZONEMA. 



1. S. Smithii, tufted, olivaceous; filaments dichotomously 

 branched, continuous ; granules moniliform, arranged in parallel 

 lines GREV. Crypt. Fl. t. 298. Ulvafcetida, Eng. Bot. t. 2101. 



Hob. On stones and sea-weed near high-water mark, in 

 tufts from half an inch to upwards of an inch in height. 

 Abundant in Berwick Bay. Spring. Q 



165. CHAETOPHORA. 



* Frond simple, globose. 



1. C. marina, frond irregularly globose, inflated, folded, olive- 

 brown, smooth GREV. Crypt. Fl. t. 53. ; Fl. Edin. 322. Rivu- 

 laria tuberiformis, Eng. Bot. t. 1956. HOOK. Scot. ii. 75. Tremella 

 flifformis, LIGHT F. Scot. 900. 



Hob. On Conferva and the smaller Fuel in Berwick Bay. < 



Varies considerably in size. The largest specimens are an 

 inch in diameter, slippery, coriaceous, hollow within. The 

 filaments are imbedded in the thickness of the walls, hya- 

 line, dichotomously branched, the apices all terminating at 

 the surface in dark club-shaped granules. 



2. C. tuberculosa, green, globular, gelatinous, unequally tuber- 

 cular ; filaments very numerous, radiating, dichotomously branch- 

 ed ; ultimate branches shorter, fastigiate, tapered at the points 

 SPRENG. Syst. Veg. iv. 371. Rivularia tuberculosa, Eng. Bot. 

 t. 2366, very exact to our specimens. 



Hab. In springs attached to foreign bodies. Longridge 

 Dean. 



In general about the size of a pea, but sometimes larger. 

 The filaments are long, slender, pellucid, marked with a 

 series of dark rather distant spots. The joints are scarce- 



