Rosselia bracteata
| Rosselia bracteata | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Rosselia | ||||||||||||
| Forman | ||||||||||||
| Scientific name of the species | ||||||||||||
| Rosselia bracteata | ||||||||||||
| Forman |
Rosselia bracteata is a tree in the balsam family from New Guinea , it is endemic to the island of Rossel in the Louisiade archipelago . It is the only species in the genus Rosselia .
description
Rosselia bracteata grows as a tree with brown bark .
The leaves at the branch ends are pinnate unpaired with 3–7 leaflets . The leaflets are entire and the terminal leaflet is heart-shaped.
Rosselia bracteata is dioecious dioecious . The inflorescences consist of stalked cymes on a main axis, each underlaid by a large, leaf-like and heart-shaped, durable bract . The flowers are threefold with a double flower envelope . There are 6 stamens and a small pestle in the male flowers . Staminodes are present in the female flowers and the ovary is three-chambered with a long stylus with a three-lobed stigma . There is one discus each.
Pear-shaped and pointed, compound , single-seeded stone fruits with a bony stone core (pyrene) are formed.
Taxonomy
It was first described in 1994 by Lewis Leonard Forman in Kew Bull. 49: 603.
literature
- * K. Kubitzki : The Families and Genera of Vascular Plants. Vol. X: Flowering Plants Eudicots , Springer, 2011, ISBN 978-3-642-14396-0 , pp. 84 f, 89, 99, online at researchgate.net.