24 



2. " Relative Frost Resistance of Eucalyptus in Southern California," by E. N. 

 Munns, Journ. of Forestry, XVI, 412 (April, 1918). In this paper twenty-six species 

 are dealt with. A few of the vernaculars are open to possible correction, e.g., E. 

 ■polyanthema, which is called " Australian Beech," perhaps a misplaced label, for such a 

 name is quite unknown in Australia. E. amygdalina is called " Giant Eucalypt." 

 Perhaps E. amygdalina var. regnans — E. regnans — is meant. E. leucoxylon, " White 

 Wood." This is a mistake, although it is sometimes called " White Ironbark." The 

 author of the specific name regnans (p. 422) is Mueller. E. goniocalyx, " Box-wood." 

 Box-wood is not an Australian wood, though " Box " is. E. calophylla, " Feather- 

 veined Gum." This is evidently a Californian name for the " W.A. Red Gum," but it 

 is descriptive of all the Corymbosee. 



One of the conclusions in a useful paper is that E. viminalis is the most frost- 

 hardy species of the genus that has so far been planted in Southern California, followed 

 by E. polyanthemos, E. Gunnii, E. bicolor, and E. regnans. It is quite evident, however, 

 that the original seeds were not obtained from the most frost-resistant localities in all 

 cases. 



(b) Snow. 



See Dudley Le Souef, " Effect of Snow on Eucalyptus trees," (Vict. Nat., 18,. 

 108-110, 1901). 



(c) Wind. 



Effect of wind. See Fissility (timbers), Part LIV, p. 208. 



See my " Forest Flora of New South Wales," Part LX, tor two remarkable 

 photographs showing : — 



(a) " Wind-blown trees, Stanley, North-west Coast, Tasmania. (These illustrate 

 the dwarfing or nanism caused by strong sea breezes in exposed situations.) 



(b) " A Cypress Pine (Callitris robusta. R.Br.) after a Cyclone, Cambo Cambo 

 Station, Collarenebri district, NSW." This shows the devastation in a forest, 

 including the cyclonic or twisting force, and the disintegration of the timber into long 

 splintery masses. 



IV. Parasites. 

 (a) True Parasites (Mistletoes). 



I am indebted to Mr. W. F. Blakely, my Botanical Assistant, for the following- 

 lists, and hope the publication of them will lead to much fuller interest being taken in 

 the subject. (Suggestions as to dealing with Australian Mistletoes have been scanty. ) 

 See the non-Australian reference, "Some Suggestions on the Control of Mistletoe in 

 the National forests of the North West" (U.S.A.). (Forestry Quarterly, XIV.. 567 

 December, 1916.) [See also Schlich's "" Manual of Forestry," IV, 366.] 



