Algae. 101 



appeared in Vol. XXXIII of the Transactions, and points out that 

 Plocamium hamatum J. Ag., hitherto supposed to be endemic in 

 Norfolk Island, has been found on the Australian coast. 



A. Gepp. 



Laing, R. M., Noteon the Occurrence oi Phyllitis fascia (^l\xe\\.) 

 Kuetz. in New Zealand. (Trans. Proc. New Zealand Inst, for 

 1906. Vol. IXL. p. 220-221. Wellington, June 1907.) 



The author found the plant at Akaroa and submitted it to 

 Prof. Setchell, who identified it by means of its plurilocular spo- 

 rangia. The species, known in Europa, N.W. America and Japan, 

 had already been recorded for Cape Hörn and the Falkland Is- 

 lands in the southern hemisphere, and has now been found at 

 Akaroa and Wellington Heads in New Zealand and on the 

 coast of New South Wales. A. Gepp. 



Lankester, Sir Ray, On Aycheriua, Golenkinia and Botryococcus. 

 (The Quart. Journ. Microsc. Sc. Vol. LH. p. 423—430. PI. 25. 1908.) 



The author is of opinion that his Archerina boltoni, described 

 in 1885 and referred to the Protozoa, is identical with Golenkinia 

 radiata described by Chodat in 1894 and with Richteriella bytroides 

 described by Lemmermann in 1898. The name Archerina Claims 

 precedence over the other two generic names. Further he treats 

 of the organism Botryococcus Braiinii and publishes some drawings 

 and notes prepared 25 years ago. He calls upon naturalists to study 

 it in the Lake district, with a view to elucidating the foUowing 

 points: 1. The nature of the green colouring matter. 2. The relation 

 of the variable amount of yellow and red oily pigment to the 

 season. 3. The mode of passage of the colouring matter into the 

 jelly. 4. The existence of specimens showing colourless and of others 

 showing green-coloured jelly. 5. The nuclear structure. 6. The pos- 

 sible occurrence of other modes of reproduction than the longitudinal 

 fission leading to increase in the size of colonies. The genus Inejfi- 

 giata of West is probably a form of Botryococcus Braunii. 



E. S. Gepp. 



Merlin, A. A. C. Eliot, Note on Navicula Smithii and iV. crabro. 

 (Journ. Quekett Microsc. Club, Ser. 2, Vol. 10, N». 62. p. 247—250. 

 1908.) 



Referring to a striking photograph of Navicula Smithii on plate 

 X of E. J. Spitta's Microsc opy, Mr. Merlin shows that in both 

 large and small examples of the species from the Gulf of Naples 

 the primary perforations are crowned with a \evy beautilul kind of 

 secondary structure containing smaller perforations. Further, in N. 

 crabro also are exactly similar secondary structures. E. S. Gepp. 



West, Wm. and G. S. West. The Phytoplankton of the English 

 Lake District. (The Naturalist. 1909. p. 115—122. PI. V-VII.) 



The authors divide their report into I) Introduction and II) Detailed 

 account of the Lakes examined. In the first part a short account is 

 given of the district of the English Lakes, with remarks on the 

 rainfall and the geology, and the important relationship between the 



