170 SYNOPSIS OF BBITISH SEAWEEDS. 



from the water; the colour is a brighter and Poller green ; 

 the ultimate branches are shorter and more patent, 

 strongly reflexed, and tin- general habit is by no means 

 Bpongy. ]t appears to prefer the clearest and purest water, 



growmg on the bare roek, or among Corallines, in dec}) 

 cold pools left by the tide, near the extreme of tow-water 

 mark. Where I have seen it, both at Ivilkee and Dingle, 

 it could only be reached at spring- tides. 

 30 i. albida ( The whitish Cladophora) ; filaments exceedingly 

 slender, flaccid, pale yellow-green (whitish when dry), form- 

 ing dense, silky or somewhat spongy, soft, intricate tufts j 

 branches crovyded, irregular, the uppermost patent and 

 mostly opposite ; ramuli opposite or secund ; articulations 

 four or five times as long as broad, Ktz. Phyc. Uti. p. 2G7. 

 (Atlas, PI. LXIX. Fig. 324,) 

 Conferva albida, Huds. 



Hah. Southern shores of England and Ireland. On rocks and 



Algae, between tide-marks, usually near low-water mark. 



Annual. Summer. 



A handsome species, and one of the earliest recognized, 



distinguished from most of our common kinds by the 



tenuity and softness of the filaments, their length, and the 



uniformly short articulations. It is most nearly related 



to C. refracta, with which Agardh unites it, but is a taller 



plant, with less patent and less compound ramification, a 



softer substance, a paler colour, and altogether a different 



aspect. 



305. lanosa {The ivoolly Cladophora) ; filaments slender, short, 

 yellow-green, forming dense globular tufts ; branches virgate,- 

 erect, subdistant, straight, alternate or rarely opposite ; ra- 

 muli few, alternate or secund ; axils very acute ; lower joints 

 twice, upper six times as long as broad, Kutz. 'Phyc. Gen. 

 p. 269. (Atlas, PI. LXYI. Fig. 308.) 

 Conferva lanosa, Roth. 



Hah. In the sea, on rocks, or, more frequently, on the larger 

 Fuci. 

 This plant is found in abundance on most of the Atlantic 

 shores of Europe, inhabiting the old steins of Fucus ter- 

 rains and F. vesicidosus, the leaves of Zostera marina, and 

 occasionally, but far less frequently, growing on submarine 

 rocks and stones. It is decidedly found in greater perfec- 

 tion and abundance as we proceed northwards, and on the 

 west coast of Scotland the finest specimens we have seen 

 are gathered. 



