57 



2Oo c.c. of the Armidale sample were rectified, using rod and disc still head. 

 The oil commenced to distil at 155 C. (corr.). Between 155-158, 100 c.c. came 

 over; and between 158-170, 50 c.c. more, or 75 per cent, below 170 C. These 

 two fractions were again distilled, when 100 c.c. came over below 156, and 

 20 c.c. more between that temperature and 159 C. 



The oil distilling below 156-5 had specific gravity at 15 C. = 0-8682; 

 rotation a D - - 38-9; refractive index at 20 C. 1-4651. The second fraction 

 had almost the same specific gravity and refractive index, but the rotation was 

 a little less, a D - - 36-0. The terpene was definitely shown to be Isevo-rotatory 

 pinene. 



The odour of the distillate resembled that of commercial turpentine. The 

 oil was water-white, and had properties closely approaching those for pure pinene, 

 although a little cineol still remained. (For the corresponding dextro-rotatory 

 pinene see under E. dextropinea.} 



20. Eucalyptus phlebophylla. 



(F.v.M. & MIQ., Ned. Kr. Arch., IV, 140.) 

 Cabbage or Weeping Gum. 



Systematic. A tree reaching 40 or 50 feet in height, with spreading limbs, 

 weeping branches, and branchlets that hang down 10 or 12 feet, the latter 

 often glaucous or reddish. Abnormal leaves alternate, petiolate, ovate to ovate 

 lanceolate, up to 8 inches long and 3 inches broad ; venation prominent, almost 

 parallel to the mid-rib. Normal leaves lanceolate to linear lanceolate, thick, 

 shining, acuminate, often falcate, about 5 inches long ; venation almost parallel to 

 the mid-rib. Oil glands numerous. Umbels of about six to twelve flowers, 

 borne on axillary or lateral peduncles about 4 lines long. Buds glaucous, 

 somewhat clavate, about 4 lines long. Calyx tube tapering to base ; operculum 

 hemispherical, usually shortly pointed. 



Fruits. Broadly turbinate, truncate ; rim red, 

 broad, horizontal or slightly domed ; valves 

 not exserted ; 4 lines long and 5 lines 

 broad. 



The main features which distinguish these fruits from 

 E. coriacea its nearest affinity, are their larger size 

 and more woody nature. 



Habitat. New South Wales, Victoria, Tasmania. 



REMARKS. This tree was described by Miquel in 1856 (Ned. Kruiclk. Arch.," iv, 140), on behalf of Baron 

 Mueller, from the Tasmanian specimens of Stuart. Bentham, in his "Flora Australiensis " (vol. iii, p. 210), 

 synonymises it with E. coriacea, A. Cunningham, under which species Mueller also places it in his " Eucalypto- 

 graphia " (1879). Possibly Mueller had not seen specimens of Cunningham's E. coriacea when he described this 



species : 



that date it has been customary to regard the Tasmanian and mainland trees as one species, but the investigations 

 taken in connection with our research work show that such is not the case, and that the two are separate species, 

 and so Mueller was correct after all. The original name of E. phlebophylla is thus restored. Mueller, however, 

 concurs in Bentham's synonym (supra) in his " Eucalyptographia " and places the Tasmanian and mainland trees 

 under E. coriacea in that book. This lumping of species, even his own, was characteristic of the Baron in his later 

 work. Maiden, in his " Critical Revision of Eucalypts," agrees with Bentham's and Mueller's later classification. 

 The differences 'between this species and E. coriacea, with which it has been associated by various botanists, are 

 fully detailed in our publication on the Tasmanian Eucalypts, Roy. Soc. Tas., 1912, p. 27-9. Maiden disagrees 

 with our classification, Roy. Soc. Tas., 1914, p. 27, but the botanical and chemical results favour separation. 



50068 E 



