Contains 2 accepted taxa overall.

Characteristics
Marsilea L.
WATER-CLOVER
Classification
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SALVINIALES
Marsilea
Citation
MARSILEA Linnaeus, Sp. Pl. 1099. 1753.
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TYPE: Marsilea quadrifolia Linnaeus Lectotypified by C. Christensen, Index Filicum LVII. 1906.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Marsilea minuta Small waterclover
Marsilea mutica Nardoo, Australian Waterclover
Identification Key
1.  Leaflets variegated, with a lighter splotch in basal portion; sporocarps without a raphe or teeth
1.  Leaflets uniformly green; sporocarps with a raphe, the teeth somewhat prominent
2
2.  Stem with 1-3 adventitious roots along the internodes; leaflets of emergent leaves irregularly crenate
2.  Stem internodes without adventitious roots; leaflets of emergent leaves entire to sinuate or obscurely crenulate
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3.  Distal tooth of sporocarps 0.4-1.2 mm long, sharply acute to pointed, the tip often recurved
3.  Distal tooth of sporocarps 0-0.4 mm long, obtuse to subacute, tip not recurved
4
4.  Sporocarps suborbicular to nearly elliptic, the distal tooth 0.1-0.4 mm long, shallowly deltate or tapering to a deltate peak
4.  Sporocarps subquadrangular, the distal tooth absent or very shallowly triangular
5
5.  Sporocarps 3-5 mm long, hatchet-shaped with the upper margin slightly indented, descending and solitary on strongly deflexed to upright, unbranched peduncles, peduncles 1.5–6 mm long; proximal tooth 0.2-0.4 mm long, rounded and not appearing as a tooth
5.  Sporocarps 6-9 mm long, elliptical to quadrate, strongly ascending on erect, frequently branching peduncles, peduncle 8-17 mm long; proximal tooth 0.4-0.5 mm long, distinctly appearing as a blunt tooth
Genus Synonyms
Synonym Full Citation Basionym Type
No synonyms found.