312 ON SOME NEW SPECIES OP EUCALYPTUS, 



Eucalyptus Morrisii, sp.nov. 



" Grey Mallee." 



(Plate xviii.) 



A mallee of rather dense growth, or somewhat spreading, 

 usually about 15 feet high or somewhat higher; stems 2-3 inches 

 in diameter ; rarely growing to tree-size, about 25 or 30 feet 

 high, and 6 to 12 inches in diameter. Stems mostly hollow. 

 Branchlets often flattened or quadrangular. Bai'k grey, somewhat 

 fibrous, or on very old trees even furrowed, approaching that of 

 an " Ironbark." 



Young leaves petiolate, generally lanceolate in form, sometimes 

 narrower and sometimes broader than the mature ones; opposite 

 or with a tendency to become so. Mature leaves lanceolate- 

 acuminate, on petioles of about 1 inch long, occasionally falcate; 

 about 6 inches long and up to 1 inch wide ; not shining, venation 

 spreading, very prominent on both sides, intramarginal vein 

 removed from the edge. Oil glands numerous. 



Peduncles axillary, not numerous, flattened and twisted, short, 

 under 6 lines, mostly 3-4 lines long, bearing 3 to 7 shortly pedi- 

 cellate or sessile buds (mostly in threes). Calyx-tube hemi- 

 spherical, 3 lines in diameter. Operculum obtuse, conical, 3 lines 

 long. Ovary domed. Anthers parallel; connective not prominent. 



Fruits hemispherical, rim pyramidal and sometimes twice the 

 length of the calyx, valves well exserted, 3 to 4 lines in diameter, 

 shining. 



Ilab. — Near Girilambone, on stony or rocky hills, thence on 

 hills across country to Cobar; also near Coolabah, where it occurs 

 on more or less level and less stony ground (W. Bauerlen). 



This species is a Mallee of the northern interior of this colony, 

 where it is found associated with the "Green Mallee" and at 

 times with E. oleosa. The bark is sometimes persistent right out 

 to the branches, whilst on some trees it is smooth nearly half-way 

 down. The persistent bark is rougher and more furrowed in the 

 larger trees, making a slight approach to that of the Ironbarks. 



