63 SEA MOSSES. 



the l»nin(hc-i arc divided and subdivided unul they 

 arc no ihu kcr at the ends than hinmn hairs. 'l*hc 

 lesser l>ranches arc apt lo W spiney. 1 luive 

 siK-umens of E, clathrata in my herbariiun wlu»e 

 (romls are nowhere more llun oneei^hih of an inch 

 wide, though Ihey are a foot and a half long. 'ITicy 

 w.ll Ik: found of vanous lengths, from two or three 

 inches up. Inder a high nugnifying l>ower, the 

 cells comi-smg the frond will be found to be cpiite 

 s^iuare. and pUed in a reguLir rertan^-l - -rder. so 

 tlut the frond will api>ear tevsebted or U... 1 ; hence 

 its name. 



Genus. — CLi'A* L, 



The largest bright green plants in all seas 1 

 to this genus. Two specic-s are usually cpiite Urge 

 when full gro^-n. though there are plenty of them in 

 Ihe voung suic. ami the collector ^'^\\ find them in 

 abumbnce no more than two or lluce inches b. ^ 

 'ITic fir^t two s|>ecies are common on l.nth . 

 the last gro%k-s only on the Tacific. 



UlVA LATISSIMA, L. 



The widtit Viva is extremely variable in size and 



