Augouardia letestui

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Augouardia letestui
Systematics
Order : Fabales (Fabales)
Family : Legumes (Fabaceae)
Subfamily : Carob family (Caesalpinioideae)
Tribe : Detarieae
Genre : Augouardia
Type : Augouardia letestui
Scientific name of the  genus
Augouardia
Pellegr.
Scientific name of the  species
Augouardia letestui
Pellegr.

Augouardia letestui is a tree from the legume family , in the carob subfamily, which is only found in Gabon and in a small area in the neighboring Congo . It is the only species in the genus Augouardia .

description

Augouardia letestui grows as a 10–20 meter high tree.

The stalked leaves are paired, alternating to opposite, pinnate with only 4–5 pairs of leaflets . The underside lighter, slightly leathery, short-stalked leaflets are entire and ovate to elliptical, as well as pointed to tapered. The nerve is pinnate, with a lighter upper side and a darker, slightly protruding central vein below. There are falling stipules .

Terminal, multi-flowered and paniculate inflorescences are formed. The hermaphrodite, almost sessile, white flowers have a simple flower cover. They are two small, white pre- or bracts highlighted that small bracts are sloping. The flowers have four white, obovate and boat-shaped sepals, the petals are missing. There are long, one-sided, 3–4 fertile, basal fused stamens with thick and white stamens and, on the other hand, 3–4 free and pound-shaped, white staminodes. It is an above-settled, elongated and seated ovary with a long white and bent stylus with smaller capitate scar present.

There are legumes formed. The young fruits are purple.

Systematics

The first description of the genus Augouardia and the species Augouardia letestui was made in 1924 by François Pellegrin in Bull. Soc. Bot. France 71: 310.

literature

  • ON Allen, Ethel K. Allen: The Leguminosae. Univ. of Wisconsin Press, 1981, ISBN 0-299-08400-0 , p. 83.

Web links

Individual evidence

  1. M. Fougere-Danezan, P. Herendeen, S. Maumont, A. Bruneau: Morphological evolution in the variable resin-producing Detarieae (Fabaceae): Do morphological characters retain a phylogenetic signal? In: Annals of botany. 105 (2), 2009, pp. 311-25, doi: 10.1093 / aob / mcp280 , online (PDF), on researchgate.net.