167 
Bonpland’s figure is an admirable one, and it includes the 
broad juvenile foliage. See fig. 5, plate 36, part vii, of my 
“ Critical Revision of the genus Eucalyptus,” which, of course, 
only reproduces a fragment. 
E. diversifolia, Bonpl. , has broad juvenile foliage. E. 
santalifoli'a, F. v. M., has broad juvenile foliage, and also narrower 
juvenile foliage is found in this species, connecting with E. 
pachyloma, Benth., which has narrow juvenile foliage. 
We have analogous circumstances in the case of E. Lueh- 
manniana, F. v. M. , and E. virgata, Sieb. (see my “ Crit. Rev. 
genus Eucalyptus,” part ix, p. 273, footnote), and I believe 
that with all the many pairs of closely related species in this 
genus, which can only be divided by the width of their juvenile 
foliage, we have connecting forms in the width of such foliage. 
There are other differences between the three species referred 
to in part vii of “ Crit. Rev.” 
The anthers of E. diversifolia, santifolia and pachyloma are 
precisely similar, and I have a reference to the anthers of the 
first species at p. v of the index of vol. 1 of ” Crit. Rev.’ 
E. pachyloma, Benth., occurs north of the Kalgan River to 
Stirling Range, Western Australia. It is usually a spindly sand- 
plain Gum. Bud conical, much like that of rudis. Juvenile 
leaves narrow-lanceolate. 
It is quite impossible to keep E. pachyloma as a synonym of 
E. diversifolia. E. santali folia is, I repeat, a link between the two 
species, and inasmuch as pictorial illustration is required for 
clearness, 1 will defer my further remarks until I deal with E. 
pachyloma in a subsequent part of my ” Critical Revision. 
4. — E. calycogona (Turcz.) Typical form. 
In addition to the Western Australian localities recorded in 
“ Critical Revision,” part iii, p. 83, 1 collected it at Desmond, 
near Ravensthorpe, where it is a tall shrub. 
Mr. Max Koch (No 1,169) sent it to me from Cowcowing, 
a small tree of about 30 feet, with a smooth grey bark. 
Vai. gracilis (Maiden). 
See part iii, p. 81, of my “ Critical Revision.” 
The juvenile leaves (I am describing specimens from Southern 
Cross, W.A. J. H. M.) are glaucous on both sides, acuminate, 
tapering to a rather long petiole, lanceolate, the lamina say 3 
inches long bv | in. broad, the intramarginal vein at a very 
considerable distance from the edge, venation spreading, the 
midrib and intramarginal vein being most conspicuous, giving 
the leaf a triplinerved appearance. 
So far as I am aware, the juvenile foliage of var. gracilis 
has not been previously described. Some from Euston to Mildura, 
Victoria (W. S. Browmscombe) (not far from the type locality) 
are smaller, and from nearly elliptical to oblong in shape. They 
