186 Notes on South Australian Plants. 



parts of Australia,, a prominent order, but rank also under 

 the same latitudes in Western Australia, according to Mr. 

 Augustus Oldfield's observations, near Shark's Bay, as one of 

 the main tribe of plants. Yet, although their variety of 

 species is unusually small, Myrtacece still continue to offer, in 

 the ubiquitous Eucalyptus, the principal timber, besides 

 which some Avovise are forming fair-sized timber trees. Ca- 

 suarinse, and what is still more singular, Proteaceee are not 

 common ; Epacridese entirely absent. Monocatylidonese bear 

 a scantier proportion to Discotylidonese than usual. Acotyli- 

 donese seem remarkably scarce. The hirbarium shows, besides 

 the novelties enumerated on the following page, several plants 

 evidently as yet unknown in the flora of the globe ; but these, 

 I regret to say, not collected in a sufficiently perfect state to 

 admit of their introduction into the botanical system. We 

 may take them as a proof of how much additional labor is still 

 needed before a system of the plants of this continent will have 

 advanced to completion, and let us ardently hope that the in- 

 trepid traveller to whom we owe this contribution to phyto- 

 logy, will safely and successfully return from his present 

 arduous exploits, and also add again to our knowledge of the 

 treasures of the vegetable empire. 



Enumeration of the Plants observed for the first time during 

 Mr. Macdouall Stuart's expedition in the north-western 

 interior of South Australia : — 



Cleome (Polanisia) flava, Banks in D. C. prodr., I., 241. 

 Busbeekea Mitchelli, F. M. Plants indig. to Victoria, I., 



53, Suppl. pi. iv. 

 Tribulus cistoides, L. sp. 554. 

 Sturtia gossypioides, B. Br. Append, to Sturt's Central 



Austr., II. /p. 68. 

 Hibiscus hakeifolius, Giard. Mem. di una Nuova Specie 



d'Ibisco, 1833. 

 Hibiscus brachysiphonius, F. M. Fragm. Phytogr. Austr., 



I., 67. 

 Sida diplotricha, F.M., in Linmea 1852, 380. 

 Hymenotheca pyramidalis, F. M. Fragm. Phytograph. 



Austr., I., 282. 

 Ammarmia multiflora, Roxb. Flor. Indica. L, 447. 



