Contains 2 accepted taxa overall.

Characteristics
Ceratopteris Brongn.
WATER FERN
Classification
POLYPODIALES
Ceratopteris
Citation
CERATOPTERIS Brongniart, Bull. Sci. Soc. Philom. Paris 1821: 186. 1822.
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TYPE: Ceratopteris thalictroides (Linnaeus) Brongniart (Acrostichum thalictroides Linnaeus) Lectotypified by Brongniart, Dict. Class. Hist. Nat. 3: 350. 1823.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Ceratopteris pteridoides WATER HORN FERN Native OBL (NWPL)
Ceratopteris thalictroides WATERSPRITE Not Native OBL (NWPL)
[Family identification key]
1.  Spores 16 per sporangium
1.  Spores 32 per sporangium
2
2.  Petiole (1)10-11(19) mm wide, usually inflated; sterile leaves usually simple and palmately or pinnately lobed, sometimes 2- to 4-pinnate; basal pinnae or veins of lobes usually opposite; fertile leaves usually deltate to cordate or reniform; sporangia lacking annulus or annulus well-developed, indurate cells 0-10(40)
2.  Petiole (0.7)2-6(8) mm wide, not inflated; sterile leaves (1)2- to 3-pinnate; basal pinnae usually alternate; fertle leaves lanceolate, ovate, deltate, to cordate; sporangia with well-developed annulus, indurate cells 13-71
Genus Synonyms
Synonym Full Citation Basionym Type
Ellobocarpus Ellobocarpus Kaulfuss, Enum. Filic. 147. 1824. TYPE: = Ceratopteris Brongniart 1822.
Furcaria Furcaria Desvaux, Mem. Soc. Linn. Paris 6: 292. 1827. TYPE: = Ceratopteris Brongniart 1822, by lectotypification.
Parkeria Parkeria Hooker, Exot. Fl. 2: 147. 1825. TYPE: Parkeria pteridoides Hooker
Teleozoma Teleozoma R. Brown, in Franklin, Narr. J. Polar Sea 767. 1823. TYPE: Acrostichum thalictroides Linnaeus = Ceratopteris Brongniart 1822, by lectotypification.