34 



PLANT HABITS AND HABITATS IN THE 



action to conditions of poor soil-aeration. The first noticeable effect 

 of oxygen deprivation to the roots of Coleus sp. is the cessation of the 

 absorption of water (Free and Livingston, 1915: 60). This is followed 

 by a cessation of growth and ultimate wilting of the shoot. 



130 



Z4' 



6' 



ae c 



30* 



32' 



134' 





Central Plains 

 Western Plateau 

 Nullarbor Plains 



| | Gt. Valley of South Australia 



Highlands of South Australia 



Murray Basin 



Railroads 



Ancient E.and.W. Mountain Lines 



* ^klP" ! 



na gf\ K& 



36" 



Jeffreys Deep 



KANGAROO GLAND 



36' 



38' 1 



128 



132 



134 



136 



138 



140 



FIG. 10. Chief physical divisions and geographical plan of South Australia, after Howchin and 



Gregory, with the 6, 10, and 15 inch isohyets. 



