Schizaeaceae | |
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Schizaea cf. bifida from Waratah Track, Ku-ring-gai Chase National Park, Australia | |
Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Schizaeales |
Family: |
Schizaeaceae Kaulf. |
Genera [1] | |
Schizaeaceae is a family of ferns in the order Schizaeales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it includes only two genera. [1] Alternatively, two families kept separate in PPG I, Lygodiaceae and Anemiaceae, may be included in Schizaeaceae (as the subfamilies Lygodioideae and Anemioideae) [2] so that the family has four genera. [3] [4] In this approach, the Schizaeaceae of PPG I is treated as the subfamily Schizaeoideae. [2]
Species are mainly distributed in the tropics, but several are found in temperate regions in North America, South Africa, Australasia and Northeast Asia. [5] [6] The sporangia are borne on specialised pinnae, distinct from ordinary vegetative pinnae. The pinnae form small comb-like, pinnate structures on which the sporangia are formed.[ citation needed]
In the narrow circumscription of the family, there are two genera: [1]
Two further genera are included in the broader circumscription: [3]
Schizaeaceae | |
---|---|
| |
Schizaea cf. bifida from Waratah Track, Ku-ring-gai Chase National Park, Australia | |
Scientific classification
![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Schizaeales |
Family: |
Schizaeaceae Kaulf. |
Genera [1] | |
Schizaeaceae is a family of ferns in the order Schizaeales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it includes only two genera. [1] Alternatively, two families kept separate in PPG I, Lygodiaceae and Anemiaceae, may be included in Schizaeaceae (as the subfamilies Lygodioideae and Anemioideae) [2] so that the family has four genera. [3] [4] In this approach, the Schizaeaceae of PPG I is treated as the subfamily Schizaeoideae. [2]
Species are mainly distributed in the tropics, but several are found in temperate regions in North America, South Africa, Australasia and Northeast Asia. [5] [6] The sporangia are borne on specialised pinnae, distinct from ordinary vegetative pinnae. The pinnae form small comb-like, pinnate structures on which the sporangia are formed.[ citation needed]
In the narrow circumscription of the family, there are two genera: [1]
Two further genera are included in the broader circumscription: [3]