Australian Meeting of the British Association. 55 
to the exploration of the ground to be traversed, and to the pre¬ 
paration of maps, so that the utmost could be made by visiting 
members of the time available. The expeditions included long 
drives in the Mount Lofty range and to the Murray River Plats at 
Mannum; also an excursion to neighbouring points on the coast 
(Grange, Henley Beach, Glenelg) which enabled us to see something 
of this strip of coastal vegetation. As a sketch of the vegetation 
around Adelaide by Professor Osborn has already appeared in this 
Journal it is unnecessary for me to repeat here details which may 
be found in Professor Osborn’s interesting paper. 1 
Brief reference to one or two points of interest must suffice. 
Our first objective was some mud banks on which were growing the 
white mangrove A vicennia officinalis (Verbenaceae) with its numerous 
aerial roots rising vertically from the mud for some distance around 
the trees. The viviparous habit was not observable as the trees were 
then only in the early fruiting stage. The later coast walk afforded 
an opportunity of exploring a stretch of sand dunes, the vegetation 
of which consisted largely of shrubs. Among other species may 
be mentioned Grevillea ilicifolia, Alixia buxifolia (Apocynacese), 
Lasiopetalum discolor (Sterculiaceae), a species of Myoporum, 
Rhagodia Billardieri (Chenopodiaceae), Adriana qaadripartita 
(Euphorbiaceae), and a shrubby Epacrid Styphelia Richii. Trailing 
across the sand were the long stems of the well-known Spinifex not 
to be confused with the plant locally known as Spinifex which is 
Triodia irritans. An interesting and to most of us a novel experience 
was afforded by coming upon a stretch of musical sand. In the 
course of the day some typical loose balls of Salsola Kali , the so- 
called Roly-poly, were met with. These balls may sometimes 
measure as much as 3 feet across. 
On the Mount Lofty range we had an excellent opportunity of 
seeing the sharp contrast between the slate and limestone hill 
slopes on one side of a valley, covered with grass and scattered 
Eucalyptus trees, but without shrubby undergrowth; and on the 
opposite side quartzite slopes bare of grass and covered only with 
a scrub vegetation of various shrubs. In the shrubby undergrowth 
of the Eucalyptus forest on the summits several Epacrids not 
previously seen were obtained in flower including Styphelia (Aero- 
triche) fasciculiflora and S. Sonderi and the common Epacris 
impressa with its variable flower colour; the shrub Bursaria spinosa 
(Pittosporeae) ; there were also to be seen the parasitic green- 
1 New Phytologist, Vol. 13, 1914, p. 109. 
