Abstract
Annual or perennial succulent herbaceous holorhizoparasites with completely or nearly subterranean stems. Glandular hairs on stems, leaves and calyx. Leaves much reduced, scale-like, alternate, spirally arranged, exstipulate, simple, with entire margin. Inflorescences cymose, capitate or spicate, terminal. Flowers bracteate, pedicellate or sessile, bisexual, actinomorphic to slightly zygomorphic, perianth and the androecium usually (4)5–9(10)-merous, calyx lobes and stamens sometimes fewer than corolla lobes. Sepals united at least at the base, puberulent to tomentose, persistent; petals united for most of their length, lobes induplicate valvate, persistent; stamens adnate to the corolla tube, included, in 1 or 2 series alternating with corolla lobes, anthers dehiscing with longitudinal slits; nectary disk absent; ovary superior, 6–17-carpellate, syncarpous, each of the 6–17 primary locules divided by a false septum into 2 uniovulate chambers; placentation axile; style simple. Fruit irregularly circumscissily dehiscent. Seeds embedded in hardened ovary tissue forming 1-seeded pyrenes, tiny, exarillate, with minute globose embryo and copious starchy endosperm. x = 9.
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Bittrich, V. (2016). Lennoaceae. In: Kadereit, J., Bittrich, V. (eds) Flowering Plants. Eudicots. The Families and Genera of Vascular Plants, vol 14. Springer, Cham. https://doi.org/10.1007/978-3-319-28534-4_22
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