Alectryon.

Tree 3–10 m high. Branchlets and inflorescence usually puberulent. Leaf rachis 1.5–9 cm long; leaflets 4–8, alternate or opposite; lamina elliptic-ovate or elliptic-oblong, shortly acuminate or obtuse, entire, oblique and acute or obtuse at base, shortly attenuate, 4–13 cm long, 2.5–6 cm wide, glabrous or lower surface puberulent, veins and reticulation prominent; petiolule 3–7 mm long; petiole 2–6 cm long. Panicle 3.5–11 cm long; pedicels to 3 mm long. Calyx 0.5–1 mm long, shallowly broadly lobed, glabrescent. Petals absent. Fruit sessile, usually 1-lobed; lobes obliquely obovoid, 8–16 mm long, 8–14 mm diam., turgid, glabrous; pericarp ± thin, drying crustaceous. Aril granular, deep red.

Distinctive in having 1-lobed, glabrous fruits.

Native.

Occurs from northern tip of Cape York Peninsula to just south of Brisbane, Queensland; also in New Guinea.

Qld: Wolvi State Forest, near Gympie, Jan. 1976, E.G. Cook (BRI); near Mount Nebo, Boombana National Park, L. Hegarty C3 (BRI); Magnetic Island, C. Sandercoe 887 (BRI); mouth of Pennefather Creek near Mapoon, Cape York, A. Morton 1238 (BRI); Mt Eerwah, 4 km W of Eumundi, P.R. Sharpe 3670 (BRI).

Since publication of the Flora of Australia Volume 25 (Reynolds 1985), Alectryon unilobatus is now treated as a synonym of A. reticulatus (see Reynolds 1991).

S.T. Reynolds, Austrobaileya 1(5): 480, fig. 37G (1982), as A. unilobatus; S.T. Reynolds, Flora of Australia 25: 22, fig. 4L (1985), as A. unilobatus; P.W. Leenhouts, Flora Malesiana ser. 1, 11(3): 453, fig. 5i (1994); G. Leiper et al., Mangroves to Mountains rev. edn: 283 (2008).

F.A. Zich et al., Alectryon reticulatus, in Australian Tropical Rainforest Plants (2018):  http://www.anbg.gov.au/cpbr/cd-keys/RFK7/key/RFK7/Media/Html/entities/Alectryon_reticulatus.htm [accessed 18 September 2020]

Cooper, W. & Cooper, W.T. (2004). Fruits of the Australian Tropical Rainforest. (Nokomis Editions: Melbourne).

Leenhouts, P.W. (1994). Alectryon, in Adema, F. et al., Sapindaceae, Flora Malesiana ser. 1, 11(3): 450–458.

Leiper, G., Glazebrook, J., Cox, D. & Rathie, K. (2008). Mangroves to Mountains. A Field Guide to the Native Plants of South-east Queensland Revised Edn. (Society of Growing Australian Plants (Queensland Region) Inc. Logan River Branch: Browns Plains, Qld).

Reynolds, S.T. (1982). Notes on Sapindaceae in Australia, II. Austrobaileya 1(5): 472–496, as A. unilobatus.

Reynolds, S.T. (1985). Alectryon, in George, A.S. (ed.), Flora of Australia 25: 24–31. (Australian Government Publishing Service: Canberra), as A. unilobatus.

Reynolds, S.T. (1991). New species and changes in Sapindaceae from Queensland. Austrobaileya 3(3): 489–501.

Zich, F.A., Hyland, B.P.M., Whiffin, T. & Kerrigan, R.A. (2018). Australian Tropical Rainforest Plants. Edition 7. [accessed 18 September 2020]

Published 15 November 2019. Adapted from S.T. Reynolds, Alectryon unilobatus, Flora of Australia 25: 26 (1985). Updated by P.G. Kodela (November 2019).