ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 221 



species of Sir uvea and an Avrainvillea are the other novelties. The 

 genus Tydemania had only once before been collected. Udotea palmetto 

 Decaisne, also but once found previously (sixty-five years ago), had been 

 a standing puzzle of unknown origin. " Gardiner has now dredged up 

 specimens from a depth of 45 fathoms. Udotea argmtea Zan., the type 

 of which has been lost, and Avrainvillea amadelpTia, wrongly placed in 

 Udotea, are elucidated. Propagation by means of stolons in Turbinaria 

 is demonstrated. 



Algae of New Zealand and Norfolk Islands. — R. M. Laing* 

 publishes a note on the occurrence of P/t ///litis fascia (Muell.) Kuetz. in 

 New Zealand. He found it at Akaroa, and submitted it to T. Reinbold 

 and to W. A. Setchell. The latter found plurilocular sporangia upon 

 it. The plant was unknown in Australia, but had been recorded for 

 Cape Horn and the Falkland Islands, its distribution otherwise being 

 in the northern hemisphere. In a postscript Laing announces the 

 occurrence of the plant at Wellington Heads, and in a list of New 

 South Wales algae. 



The same author f publishes an appendix of six marine species to 

 his list of seaweeds of Norfolk Islands which appeared in the 

 thirty-third volume of the Transactions. The previous list contained 

 thirty-three species, one of which, Plocamium hamatum J. Ag., 

 supposed at the time to be endemic, has since been found on the 

 Australian coast. 



Japanese Algse.J — K. Okamura publishes the ninth part of his 

 Icones of Japanese Algas, .including the following plants : — Dudres- 

 naya japonica Okam. sp. n. ; Halicoryne Wrightii Harv. ; Bornetella 

 capitata (Harv.) J. Ag. ; Udotea conglutinata (Soland.) Lamour ; 

 Udotea javensis (Mont.) Gepp — some of which are now adequately 

 figured for the first time. Dudresnaya japonica is illustrated in 

 considerable detail, the development of the cystocarp from the procarp 

 onwards being shown in various stages. The other species are well 

 illustrated. The descriptions are in Japanese and English. 



Liasophycus, a New Fossil Alga.§ — P. Fliche publishes an account 

 of a fossil alga found by M. Joly in the upper " Sinemurien " of 

 Riniogne (Ardennes). It is a large branched cylindrical thallus bearing 

 elliptical fructificatious along one side. It resembles most nearly the 

 Australian Scytothalia dorycarpa Grev., except that in its fruits it 

 approaches Seirococcus axillaris Grev. Its structure is preserved and 

 shows itself to be purely cellular, as in the Fucacete. It is named 

 Liasophycus scgtothalioides, its origin in the Lias being commemorated 

 in the generic name. It appears to be the oldest indisputable alga 

 that has come down ; for in those recorded as occurring in the Trias 

 the microscopic structure is unknown. 



* Trans. Proc. New Zealand Inst,, xxxix. (1907) pp. 220-1. 



t Op. cit., xxxviii. (1906) p. 424. 



t Icones of Japanese Algse, i. No. 9 (1903) pp. 209-32 (pis. 41-5). 



§ Comptes Rendus, cxlviii. (1908) pp. 210-12. 



