Small to fairly robust herbs, sometimes with thalloid bodies only or developing stems on which leaves and inflorescences are borne
Stems erect, branched, woody, often sparsely to densely covered with small, imbricate leaves or bracts
Leaves dimorphous: (a) floating, linear, often branching dichotomously; (b) bract-like, hard, often dentate, in many species covering the abbreviated, fertile shoots
Flowers single in axils of bract-like leaves, aggregated towards apices; spathella obovoid, apiculate, splitting laterally, apex remaining intact; flower recurved in spathella, becoming erect at anthesis, pedicelled
Perianth 0 or of 2 minute, subulate segments situated on each side of stamen(s)
Stamens 1 or 2, if 2, with filaments fused nearly to apex; pollen in monads or diads
Ovary ovoid to fusiform; styles 2, subulate, papillate, usually recurved
Capsule ovoid to ellipsoid, 10-ribbed, with all ribs running entire length of capsule, opening by 2 subequal valves; one or both persistent
Nomenclature:
Ledermanniella Engl.
Engler: 378 (1909)
Obermeyer: 208 (1970)
Inversodicraea Engl.
Engler: 271 (1915)
Obermeyer: 208 (1970)
Cusset: 361 (1983)
Distribution & Notes:
Global: Species ± 15
Southern Africa: Species 1: Ledermanniella warmingiana (Gilg) C.Cusset, Kunene River, Namibia
References:
CUSSET, C. 1983. Contribution à l'étude des Podostemaceae. Ledermanniella Engl. sous-genre Phyllosoma C.Cusset. Bulletin du Muséum National d'Histoire Naturelle, section B, Adansonia, ser. 4
ENGLER, A. 1909. Podostemonaceae africanae. III. Botanische Jahrbücher 43
ENGLER, H.G.A. 1915. Die Pflanzenwelt Afrikas 3(1). Engelmann, Leipzig
OBERMEYER, A.A. 1970. Podostemaceae. Flora of southern Africa 13
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