Aspleniineae Temporal range: [1] | |
---|---|
![]() | |
Asplenium adiantum-nigrum , the black spleenwort | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Suborder: | Aspleniineae H.Schneid. & C.J.Rothf. [2] |
Families [2] | |
| |
Synonyms | |
Aspleniineae is a suborder of ferns in the order Polypodiales. It is equivalent to the clade eupolypods II in earlier systems; [2] [3] it is also treated as a single very broadly defined family Aspleniaceae. [4] The suborder generally corresponds with the order Blechnales as described by J. L. Reveal in 1993. [5] Aspleniineae includes some important ferns, including Onoclea sensibilis , the sensitive fern, which grows as a virtual weed throughout much of its temperate North American range, and ferns of the genus Thelypteris , a genus that has shown remarkable speciation. It also includes one of the more common horticultural ferns, Matteuccia struthiopteris , the ostrich fern.
In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the group is treated as the suborder Aspleniinae, and divided into 11 families. [2] Alternatively, it may be treated as a single, very broadly circumscribed family Aspleniaceae sensu lato , which is then divided into subfamilies. [4] The relationship between the two approaches is shown in the table below.
PPG I [2] | Christenhusz & Chase (2014) [4] |
---|---|
Suborder Aspleniineae H.Schneid. & C.J.Rothf | Family Aspleniaceae Newman |
Family Cystopteridaceae Shmakov | Subfamily Cystopteridoideae Ching & Z.R.Wang |
Family Rhachidosoraceae X.C.Zhang | Subfamily Rhachidosoroideae M.L.Wang & Y.T.Hsieh |
Family Diplaziopsidaceae X.C.Zhang & Christenh. | Subfamily Diplaziopsidoideae Christenh. |
Family Desmophlebiaceae Mynssen | (The only genus was described after 2014.) |
Family Hemidictyaceae Christenh. & H.Schneid. | Subfamily Asplenioideae Link |
Family Aspleniaceae Newman | |
Family Woodsiaceae Herter | Subfamily Woodsioideae Schmakov |
Family Onocleaceae Pic.Serm. | Subfamily Blechnoideae Hook. |
Family Blechnaceae Newman | |
Family Athyriaceae Alston | Subfamily Athyrioideae B.K.Nayar |
Family Thelypteridaceae Ching ex Pic.Serm. | Subfamily Thelypteridoideae C.F.Reed |
The following diagram shows a likely phylogenic relationship between the families of Aspleniineae (as eupolypods II), based on Lehtonen (2011), [6] and Rothfels & al. (2012). [7]