464 PROCEEDINGS OF SECTION D. 
where any but white-flowering plants are rarely met with. 
Senecio odoratus and Sambucus Gaudichaudiana occur also in 
the gorges. One large bush of Adriana quadripartita used to 
grow on a sand rise not far from the Mount, the only one 
apparently in the district. A certain class of plants occur only 
in the open country, north of the Great Desert, between it and 
the Murray River. This open country consists of plains, inter- 
spersed with sand ridges, covered with pines, and belts of mallee. 
Limestone and gypsum abound, the latter, as before described, 
mostly in little round hillocks. On the plains grow bushes 
of Nitraria Schoberi, and on the drier soils may be found the 
various salt bushes suchas Atriplex nummularium, nearly extinct; 
A. rhagodioides, A. leptocarpum, and A. holocarpum; also Kochia 
stelligera, K. brevifolia, and K. ciliata. Tribulus terrestris 18 
common on the lower-lying lands, and is credited with laming 
sheep. Plagianthus microphyllus and M. spicatus delight in the 
salty soils; but neither are very common. Further north towards 
the Murray, specimens of Heterodendron oleefolium, a small tree 
or rather bush, may be obtained; but they seem to flower at rare 
intervals, and there is never any fruit observed. The genus 
Cassia, is represented by C. Sturtii and C. desolata, but not in 
any great quantity. (C. Sturtz is particularly abundant close to 
Lake Albacutya. Acacia microcarpa, Acacia farinosa, and A. 
homalophylla are occasionally to be met with. Kxocarpus aphylla, 
an unattractive looking small tree, is common on the rises. At 
rare intervals may be met small clumps of Capparis Mitchelli, 
which is regarded as the showiest plant of the district. 
Of the composites, we have here Athrixia tenella, Aster cal- 
careus, Senecio platylepis, not to be found south of the Great 
Desert. Logania nuda exists sparsely on the scrubby patches. 
The minute annual Drymaria jiliformis, hitherto known from 
South and West Australia only, was first discovered as new to 
this colony by the writer, who gathered specimens in this region, 
as well as subsequently in the more southern scrubs. Aquatic 
plants, except along the Murray, are not numerous, but in most 
permanent dams or reservoirs, such plants as Oftelia ovaltfolia, 
Valisneria spiralis, Hydrilla verticillata, and Alisma plantago 
have established themselves, besides other plants found in the more 
southern parts of the colony. On salt marshes, in a few places, 
Heliotropium curassavicum may be found growing, associated with 
the following :—Salicornia robusta, S. arbuscula, and Muehlen- 
beckea polygonoides in the fresh water patches. Glycyrrhiza psora- 
loides is a species partial to the dry bed of swamps. Lobelva con- 
color and Isotoma axillaris abound in all wet places. Amongst those 
omitted to be mentioned as confined to certain parts of the Little 
Desert, is Thysanotus Baueri, a species bearing some resemblance 
to T. tuberosus of the Grampians. Two species of fresh water alge 
