III. Subfam. Ajugoideae Kostel. (1834).
Subfam. Teucrioideae (Dumort.) Caruel (1884).
Lianas; leaves opposite, petiolate, ovate, entire; inflorescence axillary, cymose, lax; bracts showy, orange; calyx 4-lobed, basically actinomorphic but often forming two 2-lobed lips due to incomplete separation of lobes, not accrescent; corolla orange, zygomorphic, 4-lobed, lobes erect, anterior and lateral lobes similar, obovate, posterior lobe longer, oblong; stamens 4, didynamous, long-exserted, filaments arched, thecae parallel, separate at dehiscence; pollen with supratectal spinules; ovary shallowly 4-lobed; stigma-lobes very short, equal; disc absent; fruit dry (or very slightly fleshy?), the lobes elongating greatly, eventually separating into potentially 4 (but usually fewer due to abortion) large, fusiform, 1-seeded mericarps with apex acute, mericarp attachment-scar basal; endosperm absent. One species, Hosea lobbiana (Clarke) Ridl., Sarawak and Brunei.
Hoseanthus Merr., J. Straits Branch Roy. Asiat. Soc. 76: 114 (1917), nom. illeg.
Hosea Ridl., J. Straits Branch Roy. Asiat. Soc. 50: 124, 125 (1908).
© Royal Botanic Gardens, Kew