338 Transactions. — Botany. 



Order Champieae. 



200. Fauchea coronata(?), J. Ag., Epicr., p. 294. 

 Bay of Islands : Berggren. 



201. Chylocladia secunda. Fl. Nov.-Zel., p. 253. (J. Ag., 



Epicr., p. 297.) 

 Akaroa : Raoul. Port Cooper : Lyall. 



202. Ghylocladia umbeilata. Fl. Nov.-Zel., p. 273, tab. 119c. 



(Vide also Anal. Algol., cont. iii., p. 75.) 

 Lyall Bay, Sumner (drift weed) : B. M. L. Lyall Bay, 

 Tauranga : Berggren. 



203. Chylocladia(?) ccespitosa. Fl. Nov.-Zel., p. 253. 

 Port Nicholson : Lyall. 



A very doubtful species. 



Champia. 



I have been considerably puzzled by the New Zealand 

 species of this genus. Agardh (De Alg. mar. Nov.-Zel., p. 18) 

 recognises only one, while in the " Flora Novae-Zealandiae " 

 (p. 235) Harvey recognises three. Amongst my own speci- 

 mens, which are fairly numerous, I have three forms; of these 

 two perhaps which coincide with Harvey's Champia nova- 

 zelandice and C. parvula respectively, and the third is possibly 

 distinct from any of Harvey's species. The only species ad- 

 mitted by Agardh is Champia novce-zelandice, and it seems to 

 me that this species 'properly defined should include both 

 Champia novce-zelandice, of Harvey, and C. parvula, of 

 Harvey, for the following reasons : Agardh's specimens of 

 Champia novce-zelandice came from the Chatham Islands, and 

 are apparently incomplete. He rightly distinguishes the 

 juvenile from the mature form, but wrongly describes the 

 whole frond as articulate. In the lower portions of the 

 branches the articulations frequently quite disappear in the 

 mature specimens. In the young frond, too, the stems inos- 

 culate, forming a dense tufted mass. In this form Raoul, 

 who tirst identified the New Zealand form with C. parvula, 

 probably mistook it for the European species, which it then 

 resembles. I have a form from the Bay of Islands which 

 Agardh thought might be a new species. It is but little 

 branched ; the branches are broader than in Champia novce- 

 zelandice, and the branchlets, particularly those bearing 

 tetraspores, are more or less swollen and submoniliform. 

 The branchlets, too, are rarely whorled, as in the Champia 

 novce-zelandice, but generally opposite. It may perhaps 

 stand at present as a variety (tumescens) of Champia novce- 

 zelandice. 



