November, 1932 The Queensland Naturalist 
33 
Common Names . — Silver leaved or Silver-leaf Iron- 
bark is the commonest vernacular. It is often called 
Broad-leaved Ironbark but this soubriquet is shared in 
Queensland with E. siderophloia F.v.M. and E. nubiiis 
Maid. & Blakely. 
Botanical Name. — Eucalyptus (see under No. 1), 
melanophloia from the Greek melas black and phloios bark. 
Timber. — The timber is pale red, very durable and 
with a much interlocked grain. The trees are usually 
much branched, mostly with rather irregular trunks. 
Referevice. — Eucalyptus melanophloia Ferd. von 
Mueller in Journal of the Linnean Society (London) III., 
93, 1859. 
18. Eucalyptus siderophloia, Broad-leaved or 
Red Ironbark. 
Description. — Large tree with a hard much furrowed 
thick coarse black bark, somewhat friable, the cracks often 
carrying a dark red kino or “gum. ” Young hranchlets 
angular but soon becoming terete or rounded. Coppice 
leaves or leaves on young trees usually large and coarse, 
varying from broadly lanceolate to ovate or almost orbi- 
cular, up to 7 inches long and 4 inches diameter, or even 
more, sometimes as small as 2 inches long and 1 inch broad, 
and at the base of young shoots sometimes very small 
indeed, being about % inch long and -J inch wide; petiole 
or leaf stalk up to 1 inch long on the larger leaves, pro- 
portionately shorter on the smaller ones; lateral nerves 
and intermediate veins more or less clearly discernible on 
both faces, main nerves mostly about i inch apart, intra- 
marginal vein mostly about 1 line from the edge or in 
very broad leaves 2 lines from the edge with a further 
somewhat broken and indistinct one right close to the edge 
itself. Ordinary (secondary or adult) leaves thickly cori- 
aceous, straight or falcate, lanceolate but often very 
broadly so, apex shortly acute or gradually drawn out to 
a long narrow point, petiole prominently twisted -J to 1 
inch long, blade up to 7 inches long and 1-J inches wide, 
in the narrower leaves 7 times, but in some of the shorter 
broader ones only about 3 times as long as broad, midrib 
distinct on both sides, lateral nerves rather obscure, 
oblique, mostly about i inch apart, intramarginal vein in 
the wider leaves about 1 line removed from the edge, in 
the narrower longer leaves much closer. Flowers in 
umbels, the umbels arranged in terminal panicles, indi- 
vidual umbels 3-12 flowered peduncle stout angular or 
flattened, mostly about -Jin. long. Operculum conical, usu- 
ally narrowly so, pointed l to -Jin. long. Stamens in seve- 
ral series, all perfect; longer filaments about Jin. low. 
anthers small with distinct parallel cells owning widely 
by longitudinal slits. Seed-capsules broadly turbinate or 
