122 THE VOYAGE OF H.M.S. CHALLENGER. 



Mr Moseley collected the typical plant in the Cape Verde Islands ; Rutzing states that 

 it is found " ad insulam Sanctse Crucis," which by a slip is given as Vera Cruz by Dickie, 

 whom Melliss follows. 



ULVACE2E. 



Ulva latissima, Kiitz. 



Ulva latissima, Kiitz. ; Dickie in Journ. Linn. Soc. Loud., xiii. p. 181 ; Melliss, St Hel., p. 380. 



St Helena. — Very common on the shores of the island — Melliss. 

 Very widely spread. 



Ulva parvula, Kiitz. 



Ulva parvula, Kiitz., Sp. Alg., p. 474?; Melliss, St Hel., p. 380. 

 St Helena. — Eare ; adhering to Laurencia cruciata — Melliss. 



The original Ulva parvula is from the Mediterranean. Dickie does not include this in 

 his enumeration. 



Enteromorpha, sp. 1 



Enteromorpha, sp. ? Dickie in Journ. Linn. Soc. Lond., xiii. p. 181 ; Melliss, St Hel., p. 380. 

 St Helena. — Adhering to Laurencia cruciata — Melliss. 



"Structure evidently the same as that of Enteromorpha percursa, J. G. Agardh, but 

 too imperfect for identification.'' — Dickie. 



