Table 5.
Morphology of Serianthes, Falcataria and Wallaceodendron, based on Fosberg (1960), Nielsen (1992), Nielsen et al. (1983, 1984a, b) and Verdcourt (1979).
| Wallaceodendron | Falcataria | Serianthes | |
|---|---|---|---|
| Inflorescence | Solitary axillary unbranched spiciform raceme | Unbranched elongated raceme | Umbel, raceme or panicle composed of pedunculate spikes, pedunculate racemes or 1–4 flowered glomerules |
| Pod | Dehiscent, unwinged | Dehiscent, narrow wing | Indehiscent, unwinged |
| Epicarp | Chartaceous to woody | Chartaceous to woody, dehiscent, narrow wing | Thin, coriaceous, chartaceous to woody |
| Endocarp | Membranaceous to chartaceous | Chartaceous | Parchment-like, woody |
| Endocarp forms a papery envelope around each seed, which is the basic dispersal unit | |||
| Germination | Not known | Epigeal | Epigeal |
| First two foliar leaves of the seedling | Not known | Opposite and bipinnate | Opposite and bipinnate |
| Leaf phyllotaxy | Spiral | Alternate | Alternate |
| Leaflet insertion | Opposite | Opposite | Alternate |
| Pollen exine | Tectum perforated by non-isometric channels | Tectum perforated by isometric parallel channels | Tectum perforated by non-isometric channels (except in subgenus Serianthessect.Minahassae) |