72 TASMANIAN TIMBERS. 



BOTANICAL DESCRIPTIONS OF EUCALYPTI. 



By L. RODWAY. 



Eucalyptus globulus (Labillardiere) . — Tall, erect tree, even in 

 exposed situations, tending to preserve a preponderating main- 

 stem till the high forest age is reached, the branches few and acutely 

 diverging; bark deciduous. Mature foliage alternate, stalked, 

 lanceolate, acute, oblique, 6 to 12 inches long, 1 to 2 inches wide. 

 Flowers solitary in the leaf axils. Outer operculum smooth, 

 shed while the bud is approaching maturity ; calyx and inner 

 operculum rough, warted, and obscurely four-ribbed ; mature 

 calyx about | inch in diameter; anther-cells parallel. Fruit 

 broadly obconic, | to 1 inch in diameter ; capsule slightly pro- 

 truding ; valves obsolete. In Eastern Victoria the common form 

 of this tree bears a three-flowered umbel in the axil, the flowers 

 being half the size recorded in the type, and less warted. In 

 Tasmania, where this species and E. viminalis are mixed, a form 

 will occasionally be found consisting of odd trees in which the 

 flowers are in threes, the operculum and fruit quite smooth, and 

 the fruit about i to i inch in diameter, the valves much pro- 

 truding. This, though very close to the Victorian form, may 

 be a hybrid. 



Eucalyptus viminalis (Lahillardiere). — Very variable, rarely 

 exceeding 50 to 70 feet ; tending to diffuse branching. Bark usually 

 smooth and deciduous, but sometimes scaly and persistent, even 

 to the upper branches. Leaves oblique, lanceolate 2i to 6 inches, 

 narrow to broad. Flowers usually in threes, in the axils, seldom 

 the umbel bearing many flowers. Operculum smooth, about as 

 long as the calyx, dome-shaped to pointed ; calyx smooth, obconic, 

 about 2 to 4 lines long ; anther-cells parallel. Fruit 3 to 5 lines 

 diameter, hemispheric ; valves of the capsule protruding. 



Eucalyptus coriacea (A . Cunningham), E. pauciflora (Sieher.) — 

 Attaining in favourable situations 60 to 70 feet ; much branched, 

 and rather spreading. Bark smooth, and deciduous from the 

 base. Leaves alternate, oblique, lanceolate, and usually rather 

 broad, 4 to 8 inches long, the primary veins bold, few, nearly aa 

 large as and nearly parallel with the midrib, giving the leaf a 

 penninerved appearance. Flowers many, in axillary umbels. 

 Operculum hemispheric, very short; calyx hemispheric, about 3 

 lines diameter ; anther-cells diverging ; stamens all or nearly all 

 complete. Fruit pear-shaped, about 4 to 5 lines long; capsule 

 sunk. 



Eucalyptus sieheriana (F. v. Miieller). — A tree often attain- 

 ing a considerable size, the main stem tending to predominate, 

 but not as much so as in E. globulus. Bark persistent, thick, 

 and furrowed to the branches. Leaves alternate, oblique, lanceo- 

 late, rather broad, 4-6 inches long; the veins not numerous, 

 much smaller than the midrib, and coming off and travelling at 

 a very acute angle. Flowers many, in axillary umbels, the 

 common stalk much flattened; operculum very short, hemispheric. 

 Calyx hemispheric, about 2 lines diameter; outer stamens with- 

 out anthers ; anthers with diverging cells. Fruit pear-shaped, 

 capsule sunk, about 4 to 6 lines diameter. 



