Contains 6 accepted taxa overall.
Characteristics
Classification
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 ancylopoda | TROPICAL WATERCLOVER | Native Threatened-State OBL (NWPL) | ||
| Marsilea hirsuta | BRISTLY WATER-CLOVER | Not Native FACW (NWPL) | ||
| Marsilea macropoda | BIG-FOOT WATER-CLOVER | Not Native OBL (NWPL) | ||
| Marsilea minuta | SMALL WATER-CLOVER | Not Native OBL (NWPL) | ||
| Marsilea mutica | NARDOO | Not Native OBL (NWPL) | ||
| Marsilea vestita | HAIRY WATER-CLOVER | Not Native OBL (NWPL) |
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
3
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 |
|---|---|---|---|
| Lemma | Lemma Adanson, Fam. Pl. 2: 21, 569. 1763. | TYPE: Lemma quadrifolia (Linnaeus) Desrousseaux (Marsilea quadrifolia Linnaeus) = Marsilea Linnaeus 1753. | |
| Spheroidia | Spheroidia Dulac, Fl. Hautes-Pyrénées 39. 1867. | TYPE: Spheroidia quadrifolia (Linnaeus) Dulac (Marsilea quadrifolia Linnaeus) = Marsilea Linnaeus 1753. | |
| Zaluzianskia | Zaluzianskia Necker, Hist. & Commentat. Acad. Elect. Sci. Theodo.-Palat. 3: 303. 1775, nom. rej. vs. Zaluzianskya F. W. Schmidt 1793. | TYPE: Zaluzianskia marsiloides Necker, nom. illegit. (Marsilea quadrifolia Linnaeus) = Marsilea Linnaeus 1753. |