Loeseneriella A.C.Sm.

Tall lianes or scandent shrubs; old stems grooved with fairly deep furrows filled with parenchyma (this structure allows a certain degree of flexibility in tall lianes); the most massive of these trunks sometimes break into four separate stems which repeat the structure of the original. Leaves mostly opposite, petiolate; blade entire or moderately crenulate. Stipules free or borne on a transverse flange-like structure. Inflorescences of axillary cymes without accessory branches. Flowers usually with conical buds. Sepals 5, equal or unequal, rather small. Petals 5, valvate or with the margins slightly overlapping, often rather long, glabrous or pubescent. Disc very variable in its degree of development, often complex with a collar-like base encircling a separate fleshy pad, sometimes cup-like with the centre extended upwards into a thick fleshy column. Stamens 3; anthers with extrorse transverse dehiscence; pollen in monads, tricolporate, ± 20–40 ? in diameter, finely reticulate. Ovary thin-walled, enclosed within the base of the filaments; ovules 4–15(–20) per locule; style conic-pyramidal with a punctiform stigma. Fruit of 3 dehiscent mericarps, each with 2 caducous valves. Seeds winged, with a marginal and submedian vein (the raphe), inserted into pocket-like structures at the point of attachment. Cotyledons fused. Germination hypogeal.

In forests, in Malesia from the lowland up to c. 850 m.