Aganope
Lianas or trees. Leaves imparipinnate; stipules caducous; stipellae absent or present. Leaflets 5–9 per leaf opposite, entire. Inflorescences panicles axillary or terminal. Bracts subtending lateral branches or flowers persistent or caducous, shorter than the corresponding flower buds; bracteoles usually at the apex of the pedicel or at the base of the calyx. Calyx pale green to reddish, cup-shaped, bilabiate, usually truncate, upper lip often indistinctly 2-lobed; lower lip 3-lobed. Corolla whitish or pale greenish, or with green or brown spots, usually turning blackish in dry specimens; standard with or without basal callosities, reflexed at base; wings approximately as long as keel petals, free or hardly adnate to the keel petals. Stamens 10, diadelphous; anthers all equal, fertile, hairy. Disc consisting of 9 or 10 free, finger-shaped glands. Ovary hairy, with 3–9 ovules. Pods indehiscent, flat, thin, leathery, with a wing along both sutures or along the upper suture only, seed chamber absent or present. Seeds (narrowly) bean-shaped, generally 1–6 per pod; hilum eccentric.
Various types of vegetation, even in disturbed or agricultural areas.
Figure 1. A, majority-rule consensus tree from Bayesian analysis of all combined molecular and morphological datasets; B, majority-rule consensus tree from Bayesian analysis of the complete molecular dataset. — Numbers below branches are bootstrap support (BS) values and numbers above branches are Bayesian posterior probabilities (PP). Abbreviation of genera: A., Aganope; Au., Austrosteenisia; D., Derris; Da., Dalbergia; Deg., Deguelia; F., Fordia; K., Kunstleria; L., Lonchocarpus; Lep., Leptoderris; M., Millettia; N., Neodunnia; O., Ostryocarpus; P., Paraderris; Ph., Philenoptera; Pi., Piscidia; Pon., Pongamiopsis; S., Solori. Capital letters: “A”, Aganope clade; “D”, Derris major clade (containing also Paraderris subclade) and “DP”= the subclade containing Paraderris species [except D. (P.) laotica]; “S”, Solori clade; “ST”, Solori subclade containing tree-like species; “SL”, Solori subclade containing liana species [1].
Figure 2 Ancestral area reconstruction (AAR) for Aganope and a representative species from its sister genus, Ostryocarpus riparius Hook.f. (using Lagrange). Species distributions are indicated at the terminals. Numbers at nodes represent node names. The grey box at node 9 indicates very low (≤ 0.1) relative reconstruction probability (RP). Different AAR results by S-DIVA at nodes 10, 9, 14 and 15 are shown in circles (see also Table 1). AA, Asian Aganope clade; AF, African Aganope clade[2].
References
- , “Molecular and morphological phylogenetic reconstruction reveals a new generic delimitation of Asian Derris (Fabaceae): Reinstatement of Solori and synonymisation of Paraderris with Derris”, Taxon, vol. 63, pp. 522–538, 2014.
- , “Historical biogeography of Aganope, Brachypterum and Derris (Fabaceae, tribe Millettieae): insights into the origins of Palaeotropical intercontinental disjunctions and general biogeographical patterns in Southeast Asia”, Journal of Biogeography, vol. 41, no. 5, pp. 882 - 893, 2014.
