Alphitonia

Red ash Alphitonia excelsa, copyright Tony Rodd.

Belongs within: Rhamnaceae.

Alphitonia is an Australasian genus of trees with leaves hairy below and bearing blackish fruits.

Characters (from New South Wales Flora Online): Trees; buds and young stems pubescent with brownish or rusty hairs, young stems often longitudinally ribbed. Leaves alternate, 2-ranked, dark green and glabrous above, whitish and finely tomentose below, strongly pinnately veined; stipules small, not persistent. Flowers whitish, small, in terminal or axillary cymes. Hypanthium covered by disc. Sepals 5, spreading. Petals 5, enclosing the 5 stamens. Ovary immersed in disc, usually 2-locular. Fruit drupaceous, black, with a transverse ridge above the base, finally drying; seeds arillate, 2 or 3, often remaining attached to the receptacle after fruit splits.

<==Alphitonia
    |--A. excelsa B00
    |--A. franguloides SK93
    |--A. incana SK93
    |--A. macrocarpa SK93
    |--A. neocaledonica BMM99
    |--A. oblata LK14
    |--A. obtusifolia B00
    |--A. petriei B00
    |--A. philippinensis SK93
    |--A. ponderosa SK93
    |--A. xerocarpa SK93
    `--A. ziziphoides SK93

*Type species of generic name indicated

References

[B00] Braby, M. F. 2000. Butterflies of Australia: their identification, biology and distribution vol. 2. CSIRO Publishing: Collingwood (Victoria).

[BMM99] Braun, U., J. Mouchacca & E. H. C. McKenzie. 1999. Cercosporoid hyphomycetes from New Caledonia and some other South Pacific islands. New Zealand Journal of Botany 37: 297–327.

[LK14] Lyons, M. N., G. J. Keighery, L. A. Gibson & T. Handasyde. 2014. Flora and vegetation communities of selected islands off the Kimberley coast of Western Australia. Records of the Western Australian Museum Supplement 81: 205–244.

[SK93] Schirarend, C. & E. Köhler. 1993. Rhamnaceae Juss. World Pollen and Spore Flora 17–18: 1–53.

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