Laing. — Bevised List of Neiu Zealand Seatcceds. 65 



67. Carpomitra lialyseris. 



Bay of Islands : Cunningham ; Sinclair ; Lyall ; Hooker. 

 Lyall's Bay : Berggren. 



Harvey Gibson (Journal of Botany, June, 1893) considers 

 this only a variety of the preceding. 



Order Splachnidiaceae. 



68. Splachnidium rugosum. Fl. Nov.-Zel., p. 215; Phyc. 

 Mem. (Brit. Mus.), i., Miss M. O. Mitchell and Miss 

 F. G. Whitting; Trans. N.Z. Inst., vol. xxv., p. 288, 

 E. M. L. 



An annual, everywhere abundant except during winter 

 months, on tidal rocks. 



Order Dictyotaceas. 



69. GlossopJiora harveyi, J. Ag., Till Alg. Syst., ii., p. 111. 

 (Dictyota kunthii : Fl. Nov.-Zel., p. 219). 



New Zealand and Chatham Islands. Common. 



Agardh (loc. cit.) retains the specific name kunthii for the 

 South American plant, with which the New Zealand one was 

 formerly considered identical. 



70. Dictyota dichotoma. Fl. Nov.-Zel., p. 219. 



Hawke's Bay : Colenso. Queen Charlotte Sound : Lyall. 

 Bay of Islands : Berggren. 



It is very doubtful whether this plant is identical with the 

 European D. dichotoma. It may possibly be D. radicans, 

 Harv., but I have not seen any specimen which agrees with 

 D. radicans "in rooting by scattered thread-like fibres issuing 

 from the stipes and lamina " ; but see J. Ag., Till Alg. 

 Syst., ii., 92. Indeed, I am by no means certain that we 

 have in New Zealand any species of Dictyota, as it is quite 

 possible that immature specimens of GlossopJiora harveyi 

 have been confused with D. dichotoma. Although Agardh 

 states (De Alg. N.Z. mar., p. 5) that D. dichotoma was col- 

 lected at the Bay of Islands by Berggren, he does not re- 

 cognise this habitat in his Till Alg. Syst. I have in my her- 

 barium an immature specimen of Glossophora from the Bay 

 of Islands which I long mistook for a species of Dictyota. 

 Previous writers may have done similarly. 



71. Zonaria turneriana, J. Ag., Till Alg. Syst., i., 48 

 (Zonaria interrupta : Fl. Nov.-Zel. p. 218). 



The New Zealand species is distmct from the South- 

 African Z. interrupta, with which it was formerly confused 

 (J. Ag.). 



Common on tidal rocks about low-water mark. 

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