ARTICLE XKIL— THE MARINE ALGAE OF THE SUBANTARCTIC 



ISLANDS OF NEW ZEALAND. 



By R. M. Laing, M.A., B.Sc. 



PLATES XXI, XXII, XXIII, and XXIV. 



Unfortunately, little time could be given to the collection of marine algae during 

 the trip of the " Hinemoa," and the collections made were therefore necessarily 

 very fragmentary. Most of the specimens collected by myself were sent Home to 

 the British Museum, and were there kindly identified by Mr. A. Gepp, of the Crypto- 

 gamic Department. The specimens, however, gathered by Mr. J. Crosby Smith 

 were retained in New Zealand, and have been examined by myself. Both Mr. Gepp 

 and I have, unfortunately, up to the present been unable to determine some of 

 the plants collected. Several present unusual difficulties, and it has not yet been 

 possible to give them the minute examination they require ; others are too badly 

 preserved, or infertile, and so cannot be identified. It is hoped, however, that on 

 further examination it will be found possible to identify some of the material ex- 

 cluded from this list. I have to thank Mr. Crosby Smith for much kind assistance 

 in the preparation of specimens for examination. 



Species marked with an asterisk (*) are now recorded for the first time from 

 the group of islands to which the asterisk is attached. The plants from the Snares 

 are the first recorded species for that group of islands. 



Class CHLOROPHYCEAE. 



Fam. ULVACEAE. 



Ulva (L.), Wittrock, 1866. 

 Distribution. — All seas, 



Ulva lactuca, var. latissima (L.), Le Jolis. 



Ulva latissima, Hook, f. & Harv., El. Nov. Zel., ii, p. 265, 1855, U. lactuca, 

 y8 latissima, Le Jolis, Alg. Mar, de Cherb,, p, 39, 1880, 



A plant which has many forms and states ; but all these are probably reducible 

 to one species (which is often, indeed, considered identical with the following) and a 

 few varieties. (Identified by A, Gepp.) 



