Ophioglossaceae

Ophioglossum, the '''adder's-tongue ferns', is a genus of about 50 species of ferns in the family Ophioglossaceae. The genus name comes from Ancient Greek ὄφις (óphis), meaning "snake", and γλῶσσα (glôssa''), meaning "tongue". Their cosmopolitan distribution is mainly in tropical and subtropical habitats.

Ophioglossaceae, from Ancient Greek ὄφις (óphis), meaning "snake", and γλῶσσα (glôssa), meaning "tongue", also known as the '''adder's-tongue family, is a small family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only family in the order Ophioglossales''', which together with the Psilotales is placed in the subclass Ophioglossidae. The Ophioglossidae are one of the groups traditionally known as eusporangiate ferns. Members of the family differ from other ferns in a number of ways. Many have only a single fleshy leaf at a time. Their gametophytes are s

species of plant

species of plant

species of plant

Mankyua is a monotypic genus and fern in the Ophioglossales. Its only species, M. chejuense, grows only on Jeju Island of South Korea. While this plant is clearly ophioglossoid in the broad sense, its precise cladistic position is uncertain. It has a fused sporangial structure similar to Ophioglossum, but a vegetative structure, with palmately-radiating pinnae, reminiscent of Helminthostachys. It may be a basal offshoot of the ophioglossoid clade sensu stricto.

Helminthostachys is a fern genus in the Ophioglossaceae (adder's tongue) family. It is widespread throughout southeast Asia and Australia.

species of plant

species of plant

Sceptridium is a genus of seedless vascular plants in the family Ophioglossaceae, closely allied to (and often included as a subgenus of) the genus Botrychium (the moonworts and grapeferns). It is also closely related to the genus Botrypus (the rattlesnake fern, often treated as the subgenus Osmundopteris under Botrychium). Sceptridium species are commonly called the grape-ferns.

genus of plants

species of plant

Cheiroglossa is a genus of fern in the family Ophioglossaceae, subfamily Ophioglossoideae, with two species.

species of fern in the family Ophioglossaceae