34 



Bibliography : — continued. 



8. Cheel, E., and Cleland, Dr. J. B., " Bulletin (No. 12) Forestry Commission, 



N.S.W." October, 1918. 



9. Cleland, Dr. J. B., and Cheel, E., Journ. Roy. Soc. N.S.W. , XLVIII, 436 



(1914). 



10. Cleland, Dr. J. B., and Clieel, E., ibid, LI (1917). 



11. „ „ Trans'. Roy. Soc, S. A. XLIIT, pp. 298, 301, 

 302 (1919) 



12. Engler-Prantl. " Die Naturlich. Pflanzenfam.." I Tiel, i Abteil. (1897). 



13. McAlpine, D., " Systematic Arrangement of Australian Fungi," Melb. (1895). 



14. „ Proc. Linn. Soc, N.S.W. , XXII, 699 (1898). 



15. „ „ XXVIII, 97, 99 (1903). 



16. „ „ XXIX, 122-123 (1904). 



17. Tassi, Dr. Fl. " Bull, del Laborat, ed Ort, Bot, della R. Univers. di Siena." 



18. Bijl, Paul A. van de, " Kew Bull." 180-181 (1922). 



d. Weeds. 



In Annual Report, Forestry Commission, N.S.W. (up to 30th June, 1919), p. 27, 

 is a note on the growth in twelve months of certain trees (E. nmculata, E. pihdaris, E. 

 saligna) affected and not affected by the strangling vines of Kennedya rubicunda, near 

 Wyong, N.S.W. It had been brought under notice by Mr. F. G. McPherson, the local 

 District Forester, Wyong, who reported — 



' This vine is superabundant at present throughout the forests in 

 this district, especially on areas which have been improved, where they 

 attack and cover up the young hardwood trees in a very short space of 

 time. I know areas where re-afforestation is good and young trees up to 

 from 2 to 5 feet high are plentiful, but they are all hidden from view by 

 this vine. I am afraid it will menace the forests by retarding the growth 

 of the young trees." 



The answer that I gave was as follows : — 



" A native of Australia. In open sandstone country it is usually a 

 trailer, but in the scrub it is a vigorous climber. The point you raise is a 

 very interesting one ; there is, in effect, a struggle going on between the 

 vine and the young trees. Probably it would not pay for the forester to 

 interfere in the struggle as a rule. But I expect that, in the vast majority 

 of cases, the young trees will shoot up and leave the humbler vine, the 

 leaves of which may have some manurial value for the forest. Firing the 

 land very much helps the dissemination of a vine like this, as it burns off 

 its enemies and facilitates the germination of the seed of the vine." 



Vines twine round other plants and sometimes destroy them, but some of them 

 (Vitis) have the redeeming quality that they contain water, which can be obtained by 



