23 



ENEMIES OF EUCALYPTS. 



This subject is dealt with, as regards trees in general, at Part LVIII, p. 209. of my 

 : ' Forest Flora of New South Wales." The Synopsis is as follows, and as the details 

 there given refer to Eucalypts, amongst others. 1 refer my readers to the paper, and 

 will content myself with some supplementary notes. 



I. Meteorological. 



(a) Frost. 



(b) Snow. 



(c) Wind. Twist in Timber. 



(d) Lightning. 



(e) Drought. 

 (/) Rain. 



II. Fires. 



III. Soil. 



IV. Parasites 



(a) Unsuitable soil. Alkali. 



(b) Sand encroachmeut. 



V. Animals. 



(jt) True Parasites. 



(b) Hemi-epiphytes. 



(c) Fungi. 



(d) Weeds. 



(a) Grazing. 



(h) Native animals. 



(c) Birds. 



(d) Insects. 



VI. Miscellaneous. 



(a) Fumes from furnaces, &c. 



(b) Artificial lighting. 



(c) Destruction by aborigines. 



(Mistletoe, &c). 

 (Strangling Figs). 



I. Meteorological. 

 (a) Frost. 

 1. Graham Officer (Proc. Boy. Soc, Tas., 1892, p. 155) referring to the Nive 

 Plains near Lake St. Clair, speaks of them being " covered with dead and fallen trees, 

 the result of a severe frost 50 or 60 years ago." 



