53 



C. articulata. fills fetaceh. 



a. ave?iia, 



* Jimplices. 



4.9. flaccn. C. fills fimplicibus, tenuibus, flaccidis, lceti viridibus ; diflepi- 



mentis pellucidis ; articulis diametro paullo brevioribus. T. 49. 



C. penicilliformis. Roth. Cat. Bot. III. p. 271 ? 



50. Youngana. C. fills fimplicibus, coefpitofis, flaccidis, obtufis, Icete viridi- 

 bus ; articulis utrinque contraGis longitudine diametrum sequantibus. 

 T. 102. 



C. ifogctia. Eng. Bot. t. 1930. 



51. curta. C. fills fimplicibus fafciculatis, fub-cartilagineis, abbreviatis, 

 utrinque alternatis, fufco-olivaceis ; difiepimentis pellucidis; articulis 

 diametro fub-longioribus. T. 76. 



52.* fiaccida. C. filis fimplicibus, fafciculatis, abbreviatis, flaccidis, bafi Iati- 

 oribus apicem verfus attenuatis olivaceo viridibus ; articulis inferioribus 

 diametro dimidio brevioribus, ultimis jequantibus. T. C. 

 On Fucus fibrofus on Santon Sands, Devon. Mlfs Hill. 

 This fpecies appears to have been gathered only by Mifs Hill, who 

 communicated it to Mr. Turner. It grows in fmall tufts about half an 

 inch long, and may be diftinguifhed from C. curta by its flaccid nature, 

 and from C. fucicola, as well as all its other congeners, by the rather abrupt 

 manner in which the joints of the upper part of the filament increafe in 

 length to double that of the lower part. Its fubftance is fomewhat gelati- 

 nous, and in drying it adheres, though not very firmly, to either Glafs or 

 Paper. In the drawing at Plate C, for which I am indebted to Mr. 

 Hooker, the plant is reprefented of the natural fize, and when magnified 

 with power 3, the upper and lower part of the filament are alfo feparately 

 reprefented, magnified 2. 



53. fucicola. C. filis fimplicibus, fafciculatis, breviufculis, obtufis, ferrugi- 

 neis ; diflepimentis pellucidis ; articulis diametro duplo-longioribus. T. 66. 



