NOTES ON AUSTRALIAN FUNGI. 205 



free, while orie specimen from the same group of plants 

 has six lobes, four of which are free and the other two 

 united at the apex by a thin membrane, which gives the 

 specimen a somewhat clathrate appearance. 



A solitary specimen has also been collected at Woolwich 

 near Sydney, which has three free lobes, whilst the other 

 two are consolidated at the apex as shown in the accom- 

 panying Plate XXIV, (a). In a group of specimens collected 

 at Killara, six volvas were clustered together, almost co- 

 hering at their sides, five of which were expanded whilst 

 the sixth was unopened. In examining the specimens it 

 was found that three of the receptacles had six lobes, one 

 of which had two lobes just united at the apex by a thin 

 membrane, whilst one specimen had seven lobes, and two 

 had five lobes quite free. The specimen with seven lobes 

 was in the ud opened volva which was cut and photographed 

 as shown in Plate XXIV, (b). A solitary large specimen 

 collected at Wahroonga is fully four inches long and from 

 three-quarters to one inch thick. This has five distinctly 

 free lobes and three smaller ones consolidated somewhat 

 at the margins but free at the apex. 



The spores of a specimen collected on the Hawkesbury 

 River are elongated, 4 X 1'8/x. It is interesting to note 

 in making a transverse section of one of the specimens 

 collected at Killara, that the receptacle or stem is quite 

 hollow or tubular in the centre, but is distinctly cellular in 

 the outer part. In the fine series of specimens photographed 

 by Lloyd (82, p. 407, fig. 243), a transverse section is shown 

 with a single row of cells in the outer structure. In our 

 specimens a drawing (Plate XXIV, c) made by Miss M. 

 Flockton shows the structure to have at least two distinct 

 rows of these cells. It is quite probable that in the 

 smaller specimens the structure would contain a single 

 row, whilst in the larger specimens two or even more rows 

 of cells will be found. 



