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The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

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Ondinea Hartog

This name is not current. Find out more information on related names.

Reference
Blumea 18:413 (1970)
Name Status
Not Current

Scientific Description

Family Nymphaeaceae.

Habit and leaf form. Aquatic herbs; laticiferous. Perennial; tuberous. Hydrophytic; rooted. Leaves submerged to floating; medium-sized to large; alternate; spiral; leathery, or membranous; petiolate (petioles sheathed at the base); simple; peltate, or not peltate. Leaf blades entire; basically palmately veined; cross-venulate; deeply cordate, or sagittate. Leaves with stipules (the stipules median-axillary), or without stipules; without a persistent basal meristem. Stem anatomy. Secondary thickening absent.

Reproductive type, pollination. Fertile flowers hermaphrodite. Unisexual flowers absent. Plants hermaphrodite. Entomophilous.

Inflorescence and flower features. Flowers solitary; medium-sized to large; often fragrant; regular; partially acyclic. The perianth acyclic and the androecium acyclic. Free hypanthium absent. Perianth with distinct calyx and corolla, or sepaline; 4–8(–9); free. Calyx 4 (hypogynous, reflexed during anthesis, spreading to erect in fruit); polysepalous; imbricate. Corolla 0–4(–5) (hypogynous); polypetalous; imbricate. Androecium 15, or 27–34. Androecial members maturing centripetally; free of the perianth; united with the gynoecium (ovary adnate to lower part of staminal filaments); free of one another; in close whorls, initially curved over the ovary, later reflexed. Androecium exclusively of fertile stamens. Stamens 15, or 27–34; petaloid (outermost), or filantherous (innermost). Anthers adnate; non-versatile; dehiscing via longitudinal slits; latrorse; bilocular; tetrasporangiate; unappendaged. Pollen shed as single grains. Gynoecium 3–14 carpelled. The pistil 3–14 celled. Gynoecium syncarpous; eu-syncarpous; superior. Ovary plurilocular; 3–14 locular. Gynoecium non-stylate. Stigmas or stigmatic lobes 3–14, whorled around prominent projecting floral axis and forming a shallow cup; floral axis cylindric with a conspicuous apical knob. Placentation more or less parietal (or ovules more or less scattered). Ovules 10–100 per locule (i.e. ‘many’); arillate; anatropous.

Fruit and seed features. Fruit fleshy; dehiscent, or indehiscent; a berry (ovoid, capped by the stigmatic cup and floral axis); enclosed in the fleshy receptacle; numerous-seeded. Seeds endospermic. Perisperm present. Seeds arillate (aril mucilaginous). Cotyledons 1, or 2. Embryo chlorophyllous; straight. Seedling. Germination cryptocotylar.

Physiology, biochemistry. Aluminium accumulation not found. Photosynthetic pathway: C3.

Geography, cytology, number of species. Native of Australia. Endemic to Australia. Australian states and territories: Western Australia. Northern Botanical Province.