THE YAN YEAN RESERVOIR, VICTORIA, 43 
being the ancestor of Micrasterias Hardyi, and this is further confirmed by 
the occurrence of M. mahabuleshwarensis in the bogs and swamps of several 
parts of Vietoria. 
With regard to species such as Æhicosolenia morsa, Lagerheimia splendens, 
and others, there is no definite information as to how they have obtained a 
footing in the plankton. Much more investigation is yet required con- 
cerning the formation of resting-spores in these Algæ, the resistance of such 
spores to desiecation, and the possibilities of. transport by means of water- 
fowl such as abound on the Yan Yean Reservoir. 
V. SYSTEMATIC ACCOUNT OF THE MORE NOTEWORTHY 
SPECIES. 
The first systematic account of importance dealing with the freshwater 
Algæ of the Australasian region was by Nordstedt in 1888'. In this work the 
author described and figured with great care a number of Algæ (especially 
Desmids) which are more or less peculiar to this region of the earth. Very 
few of the species were Australian, the great majority being from New 
Zealand, the Alga-flora of which country had already been partially inves- 
tigated by Spencer * and also by Maskell °. 
Other contributions to the Alga-flora of Australia have since appeared by 
Raciborski', Moebius’, Sehmidle", and Borge”; and three papers have 
recently been published in the * Victorian Naturalist’? by Mr. Hardy’, 
enumerating a variety of Algee from parts of Southern Victoria. In the 
latter papers, at Mr. Hardy’s request, I described the new forms, and 
descriptions of some of them have also appeared in the ‘Journal of Botany ^". 
' О. Nordstedt, “ Fresh2water Algæ collected by Dr. S. Berggren in New Zealand and 
Australia.” Kongl. Sv. Vet.-Akad. Handl. xxii. по. 8 (1888), 
2 М. J. Spencer, * Notes on Fresh-water Aleve.” Trans, and Proc, N. Zeal. Instit. xv. 
(1883). 
3 W. M. Maskell, “Оп the New Zealand Desmidiew.” Trans. and Proc. №. Zeal. Instit. 
xv. (1883) ; also xviii. (1885). To these must be added Maskell’s later paper, “ Further 
Notes on the Desmidieæ of New Zealand,” 7. с. xxi. (1889). 
M. Raciborski, “ Desmidyja zebrane przez Dr. E. Ciastonia ete, Rozpraw Wydz. 
matem.-przyr. Akad. Umiej. Krakow. xxii, (1892). 
М, Moebius, “ Australische Süsswasseralgen." Flora, Heft 3 (1892). 
€ W. Schmidle, * Süsswasseralgen aus Australien.” Flora, Bd. 82, Heft 3 (1896). 
т O, Borge, ** Australische Süsswasserchlorophyceen." Bih. till K. Sv, Vet.-Akad. Handl. 
xxii. no, 9 (1896). Most of this work and some of the preceding works have been partly 
republished in F. M. Bailey’s ‘Contributions to the Queensland Flora,’ xi. (1805), xv. 
(1898); unfortunately the defective figures of Cooke and of Wolle have been largely copied 
in these publications. | 
* А. D. Hardy, “ The Fresh-water Algæ of Victoria," Victorian Naturalist, xxi. (1981); 
xxii, (1905) ; xxiii. (1906). 
9 G, 5. West, * Desmids from Victoria." Journ, Bot., Sept. 1905, 
