108 VEGETATION OF LAKE TORRENS. 
in connection with it are found scattered along the chain of hills which 
surrounds Lake Torrens almost all the rarities which were collected by 
the companions of Captain Sturt, as Sturtia gossypioides, Petalostylis 
labicheoides, Inxiochlamys cuneifolia (Podocoma cuneifolia, R. Br.), Cassia 
Sturtii, Cassia platypoda, rarely varying, like some other species with 
undeveloped foliola (4. e. Cassie phyllodinee, R. Br.), and united with 
new species (C. desolata, C. teretiuscula), together with the precious 
Eremophilas, which run into the species of Stenochilus through Æ. lati- 
folia.. Among the rarest are a small tree Capparis (C. Mitchellit), a 
Cucurbitaceous plant, the scented Didiscus glaucifolius, and the dis- 
agreeably bitter Gyrostemon pyramidalis, the latter at a distance bearing - 
a nearer resemblance to a dwarf Pine than to the other species of its 
genus. More frequent than the plants just mentioned, but equally in 
groups of trees, occurs Aeacia Salia-tristis, with its twigs descending 
to the earth, a counterpart of the weeping-willow, while Gyrostemon 
acacigformis imitates the growth of the black-wooded species of Acacia. 
The plants which extend over the undulating low lands between the 
ranges of hills, accord in great degree with the scrub of the calcareous 
shore of the Upper Murray; we meet once more with the same leafless 
bushes of Daviesia egena, Exocarpus leptomeroides, imposing masses of 
the feather-awned Stipa elegantissima, Jasmine bushes, Sandal-trees 
loaded with fruits, Myoporum platycarpum, Pittosporum acacioides, large 
bushes of Hremothamnus myoporoides, nauseously bitter like Piffospo- 
yum and many other plants of the same Order, a property in which 
the slender Pholidia scoparia likewise participates. In vain however 
might we seek along the high calcareous lands of the Murray, after 
rarities, which even here reward the toils of the naturalist. New spe- 
cies of Zygophyllum connect themselves with those already known, and 
pass insensibly into the Reperas. Through certain species of Cruci- 
Jere, Craspedia plejocephala, Pteropogon ramosissimus, P. platyphyllus, 
Festuca bilobulata, Tetragonia inermis, Glossogyne bidentidea, Trichinium 
variabile, Waitzia brachyrhyncha, Helipterum chionolepis, Euphorbia de- 
serticola, Abutilon diplotrichum and halophytum, either the limits of 
old established genera are extended in a surprising manner, or we recog- 
nize in them new links, serving to connect species but slightly allied, 
or to unite genera artificially separated. 
The more monotonous the general aspect of these extended "sd 
the more cheerfully do we greet every oasis in them. A more gentle 
