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Male flowers. Copyright CSIRO
Female flowers. Copyright CSIRO
Flower bud, tepals removed to show the anthers. Copyright CSIRO
Cotyledon stage, hypogeal germination. Copyright CSIRO
10th leaf stage. Copyright CSIRO
Scale bar 10mm. Copyright CSIRO
Antiaris toxicaria subsp. macrophylla
Antiaris toxicaria subsp. macrophylla C.C.Berg
Berg, C.C. (1977) Bulletin du Jardin Botanique National de Belgique 47: 939. Type: ?.
Antiaris toxicaria var. macrophylla (R.Br.) C.C.Berg, Bulletin du Jardin Botanique National de Belgique 47: 309(1977), Type: ?. Antiaris macrophylla R.Br., Voyage to Terra Australis 2: (1814), Type: In barren stony places, on the shores of Companys Islands, adjacent to Arnhems Land ... in about 12
Deciduous; leafless for a period around August. Bark exudate usually obvious, turning pale brown on exposure and drying dark brown to almost black. White granular stripes in the outer blaze. Lenticels tending to be in vertical lines.
Petioles and twigs produce a milky exudate. Leaf blades about 7-17 x 3-8 cm. Lateral veins generally forming loops just inside the blade margin. Terminal buds densely clothed in pale brown hairs. Stipules about 0.3-0.8 cm long.
Male flowers: Receptacle flat or convex, about 7-12 mm diam. Tepals hairy, obtriangular, about 2 mm long forming a hood over the anthers. Anthers white, sessile or almost sessile, about 1.5 mm long. Female flowers: Flowers subtended by numerous bracts. Style branches or stigmas recurved.
Distribution and Ecology
Occurs in NT, CYP and NEQ. Altitudinal range from sea level to 200 m. Grows in well developed rain forest, gallery forest and some of the drier, more seasonal rain forests. Also occurs in Asia, Malesia and some Pacific islands.
The specific epithet was applied to this species because the latex has been used as an arrow or dart poison. The tree is not as dangerous as some of the early travellers tales would suggest but it should be treated with caution.
For some indication of the chemical components of the arrow poisons. (http://www.williams.edu/BSC/RS98html/RepSci98Web- FACULTY.html#Heading90 (17-8-2000)). This species is poisonous. (http://squid2.laughingsquid.net/hosts/herbweb.com /herbage/A1652.htm)