60 NOTES ON AUSTRALIAN MAKINE ALG^, i. 



appears to be intermediate between P. australasica Harv., and 

 P. subulifera J.Ag. 



EXPLANATION OF PLATES L-V. 



Plate i. 

 Spermatochnus /ejolisii{Tln\v.) De Toni. (Half nat. size). 



Plate ii. 

 Nitophyllum siuuomm, sp.nov. Tetrasporangiferous plant. 



Plate iii. 

 Nitophyllum sinuosum, sp.nov. Cystocarpiferous plant. 



Plate iv. 

 Sondera bennettiana(Ha.vv.) F.v. M.[Syn. Claudea bennettiana Harv.]. 



Plate v. 

 Fig. 1. — tjlva lactuca L. , transverse section of basal portion. 

 Fig.2. — Ulva lactuca L. ; longitudinal section of same. 

 Figs. 3- 4. — Bryopsis baculifera J.Ag.; tips of branchlets. 



(Figs. 1-2 from drawings by Miss M. Flockton.) 



