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Species information Abo ut Reso urces Hom e A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Idiospermum australiense Click on images to enlarge Family Calycanthaceae Scientific Name Idiospermum australiense (Diels) S.T.Blake Blake, S.T. (1972) Contributions from the Queensland Herbarium 12: 5. Common name Leaves and Flowers. Copyright CSIRO Idiot Fruit; Ribbonwood; Idiospermum Stem Blaze darkening on exposure. Living bark very bitter when chewed and probably quite poisonous. Leaves Leaf blades about 10-17 x 3.5-5.5 cm. Lateral veins slightly raised on the upper surface, curved throughout their length, but not forming definite loops. Flowers Leaves and Flowers. Copyright CSIRO Tepals about 12-14 mm long, numerous, about 30-40, variable, changing from bracts to sepals-petals- stamens-staminodes-carpels as the centre of the flower is approached. Anther connective extending beyond the anthers, both laterally and apically. Fruit Fruits large, depressed globular, about 5-5.5 x 6-6.5 cm. Seeds large, about 4-5 x 5-6 cm. Cotyledons three or Fruit, side view and two seeds. Copyright W. T. Cooper four, large, thick and fleshy. Seedlings Cotyledons three or four, greenish brown, remaining at ground level until well after the tenth leaf stage. At the tenth leaf stage: leaf blade oblong to ovate, apex acuminate, base obtuse, glabrous; petiole glabrous. Seed germination time 31 to 74 days. Distribution and Ecology Endemic to NEQ, occurs in the area between Hutchinson Creek and the Daintree River and the foothills of the Bellenden Ker Range and Mt Bartle Frere. Altitudinal range from near sea level to 200 m. Grows in well developed lowland rain forest. Scale bar 10mm. Copyright CSIRO Natural History & Notes Based on field evidence the fruits of this species is poisonous to cattle. Everist (1974). Other parts of this species are also likely to be poisonous. Tree X Synonyms Calycanthus australiensis Diels, Bot. Jahrb. 48: 10(1912), Type: Qld, Russel River, Harvey Creek, 6 June 10th leaf stage. Copyright CSIRO 1902, Diels 8548. Holo: B destroyed. Neo: Harvey Creek, 19 Jul. 1998, S. Worboys SJW346. Holo: BRI. RFK Code 620 CC-BY Australian Tropical Herbarium unless otherwise indicated in the images. Cotyledon stage, hypogeal germination. Copyright CSIRO.

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Multiple Resprouting from Diaspores and Single Cotyledons in the Australian Tropical Tree Species Idiospermum Australiense
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