64 



THE VICTORIAN NATURALIST. 



It will be noted that many species are from the Yan Yean 

 Reservoir. This is due to my having had more opportunities 

 and time to examine that water, through facilities specially afforded 

 me by the Metropolitan Board of Works, during an algological 

 survey, now in progress and extending over a period of twelve 

 months. Other interesting localities less accessible would, if more 

 time were available, give equally good results, and these I hope 

 to report on soon. Tlie reservoir has yielded several new species, 

 varieties, and forms, which appear in the list, accompanied by 

 descriptions by Professor G. S. West. 



Of these, one, to which the author of the species has given the 

 name of the collector, is that which has been twice exhibited by 

 me at Club meetings as "a new species of Micrasterias." Though 

 it is recorded now for the first tmie, I remember having taken it 

 in a muslin net at a city supply tap many years ago, when its 

 numerical increase in the lake was abnormal. I have not seen 

 its zygospore, but have noted it in all gradations of increase by 

 vegetative division. The best known representative of the group 

 to which this Desmid, M. hardyi, G. S. West, is related is M. 

 mahabuleshwarensis, Hobson, a variety of which (figure 3 on 

 the plate) I have collected from the Botanical Gardens lake, 

 Melbourne, and of which a new variety is ])resenl in lagoons 

 of the Upper Goulburn at Whanregarwen, Acheron, Eildon, 

 &c. 



The presenting of this and following lists has been rendered 

 possible by the kindness of Professor West, England, and Dr. O. 

 Borge, Sweden, who have sent me valuable literature. I have 

 also to thank Miss Hardy and Messrs. W. Muntz, C.E., A. J. 

 Day, H. C. White, J. Shephard, and Scott Sharpe for material 

 forwarded for examination. 



The following is a list of the Victorian Desmidiaccce, compiled 

 from the sources mentioned, arranged according to Professor 

 West's classification : — 



EXPLANATIONS OF TERMS AND ABBREVIATIONS USED, 



LUCALITIES : — 



Ach. = Aclieion. 



Alex. -- Alexandra. 



Clielt. — Cheltenham. 



H'berg. — Heidelberg. 



Melb. Bol. Gard. - Melbourne 

 Botanical Gardens. 



Melb. W. S. (tap) = house tap of 

 Melbourne Water Supply 

 (more than one source). 



Sandr. = Sandringham. 



Thorn. = Thornton. 



Whan. -- Whanregarwen. 



Wlsm. = Willsmere. 



Features : — 



lag. — lagoon == small permanent 

 lake or large pool, having 

 part clear of weeds. 



plank. ^ plankton. 



pool = pond = small lagoon. 



Res. = large artificial reservoir, 

 with vegetation. 



res. = small artificial reservoir, no 

 vegetation. 



s. = swamp — marsh, more or less 

 vegetated throughout. 



w. = from weeds, at or near mar- 

 gin, or within 2 metres 

 of surface. 



