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Affinities.

1. With E. crebra F.v.M.

E. drepanophylla differs from E. crebra chiefly in the large flowers and in the larger, harder, and more globular fruit. … It is not impossible, however, that … E. drepanophylla … and crebra, all of them Ironbarks, may be but forms of one species.” (B.Fl., iii, 221.)

E. drepanophylla, which may be perhaps a mere variety of the imperfectly known E. leptophleba, is still nearer to E. siderophloia than to E. crebra; (and then follows differences from E. siderophloia). (“Eucalyptographia,” under E. siderophloia).

E. drepanophylla, which was advanced with much hesitation as a species (“Flora Australiensis,” iii, 221), seems mainly to differ in more stunted habit, larger and stiffer leaves of a paler hue, larger flowers and fruits and, perhaps, different bark. This species or variety, for the elucidation of which further field studies are needed, extends northward to the Palmer River (Th. Gulliver), Cape Sidmouth (C. Moore), and Trinity Bay (Walter Hill), and, on the authority of Bentham, even to the north-west coast of Australia (Cunningham).” (Ib., under E. crebra).

E. drepanophylla, which comes very near to E. leptophleba and E. crebra, belongs to the series of Ironbark trees (with, therefore, furrowed and dark-coloured bark), has usually narrower leaves of less straightness and of lighter green, with very subtle much diverging and also more copious veins, a shorter lid, anther-cells slit in their whole length and proportionately shorter fruits. To E. drepanophylla verges Bentham's variety parviflora (“Flora Australiensis,” iii, 217) mentioned doubtfully under E. hemiphloia; it is according to Fitzalan's note an Ironbark Tree; the anthers, however, seen not to open with regular slits.” (Ib., under E. hemiphloia).

It seems to me that important differences between E. crebra and E. drepanophylla lie in the broader juvenile leaves of the latter and in the shape of the anthers.

2. With E. leptophleba F.v.M.

This is dealt with under E. leptopleba, see p. 267.

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