606 OBSERVATIONS ON THE EUCALYPTS OF N.S.W., 
Botanical position. — Having described this Gum with some 
detail, we now proceed to enquire into its botanical position. 
There is no doubt that this " River White Gum," Bentham's 
variety radiata of amygdalina (B. Fl. iii. 203), and Howitt's 
form (e)* of E. amygdalina all come more or less satisfactorily 
under Sieber's E. radiata. A good deal of confusion has occa- 
sionally arisen in regard to the reading of Sieber's description. 
We give Don's translation of the original Latin in DC. Prod. iii. 
218, Howitt's description of the Gippsland form, and Bentham's 
definition of var. radiata. 
"E. radiata, Sieb. 
"Lid of calyx hemispherical, mucronate, shorter than the cupula; 
peduncles axillary and lateral, rather angular, and rather shorter 
than the petioles; flowers 15-20 together in an umbel, on short 
pedicels; leaves linear-lanceolate, veins very fine, confluent at the 
apex, and forming a nerve, which is parallel with the margin. 
"Fruit globose, 3 lines in diameter. Petioles 4 lines long. 
Leaves 4 inches long and 6-7 lines broad." 
Mr. Howitt describes his form (e) as having : — Lea res narrow 
lanceolar falcate, attenuate at the stalk and pointed. Venation 
rather indistinct, the marginal vein considerably removed, and 
the lateral veins very longitudinal. Umbels on stalks as long 
or longer than the bud, the lid small and depressed, with a slight 
point. Buds numerous, 3 to 20. Fruit ovate-truncate, with 
slightly contracted orifice, compressed rather narrow rim, and 
small weak valves. 
As described in the " Flora Australiensis," iii. 203, the 
"variety" radiata has leaves rather broader (than the type), 3 to 
4 inches long. Flowers usually more numerous, sometimes nearly 
20 in the umbels. Fruit almost pear-shaped. 
E. radiata, Sieb. — Leaves linear-lanceolate, 4" long, 6-7"' broad, 
veins very fine, confluent at apex, forming a nerve, which is 
* " The Eucalypts of Gippsland." Trans. Roy. Soc. Vic. Vol. ii. Pt. i. 
p. 86, and Plate 10, figs. 1-5. 
