Eupodium

Eupodium
Eupodium laeve
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Marattiales
Family: Marattiaceae
Genus: Eupodium
J.Sm.
Type species
Eupodium kaulfussii
(Smith ex Hooker 1838) Hooker 1842
Species

See text

Synonyms
  • Gymnotheca Presl 1845 non Decaisne 1845

Eupodium is a genus of ferns in the family Marattiaceae native to the Neotropics. Traditionally, many taxonomists have included Eupodium within the genus Marattia (along with Ptisana). However, molecular phylogenetic studies and morphological studies of extant and fossil taxa support the recognition of Eupodium as a lineage distinct from Marattia.[1][2][3] Morphologically, Eupodium was thought to be distinct among the Marattiaceae in only having one frond at a time (occasionally two), bearing awns along veins, and having stalked synangia (clusters of sporangia that have become fused in development). However, recent phylogenetic work found that an additional species native to Brazil, Eupodium cicutifolium, which lacks these characters, is also genetically in Eupodium, making the genus challenging to distinguish morphologically.[4] Eupodium cicutifolium does occasionally have short-stalked synangia, and has spinulose spores like the other Eupodium species, but is otherwise easily mistaken for a Marattia or Ptisana. The genus currently has four recognized species.[5]

The basal chromosome number for this genus is unknown. The type species is Eupodium kaulfussii.

Phylogeny

Phylogeny of Eupodium[6][7]

The genus includes the following species:

References

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Wikispecies has information related to Eupodium.
  1. ^ Murdock, Andrew G. (2008). "Phylogeny of marattioid ferns (Marattiaceae) inferring a root in the absence of a closely related outgroup". American Journal of Botany. 95 (5): 626–641. doi:10.3732/ajb.2007308. PMID 21632388.
  2. ^ Murdock, Andrew G. (2008). "A taxonomic revision of the eusporangiate fern family Marattiaceae, with description of a new genus Ptisana". Taxon. 57 (3): 737–755. doi:10.1002/tax.573007.
  3. ^ Rothwell, Gar W. (2018). "Resolving the overall pattern of marattialean fern phylogeny". American Journal of Botany. 105 (8): 1304–1314. doi:10.1002/ajb2.1115. PMID 30001474.
  4. ^ Lehtonen, Samuli; Poczai, Péter; Sablok, Gaurav; Hyvönen, Jaakko; Karger, Dirk N.; Flores, Jorge (2020). "Exploring the phylogeny of the marattialean ferns". Cladistics. 36 (6): 569–593. doi:10.1111/cla.12419. hdl:10138/326305. PMID 34618987.
  5. ^ Christenhusz, Maarten J. M. (2010). "Revision of the Neotropical fern genus Eupodium (Marattiaceae)". Kew Bulletin. 65 (1): 1–7. Bibcode:2010KewBu..65..115C. doi:10.1007/s12225-010-9178-3. S2CID 40402903.
  6. ^ Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13 909768. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
  7. ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.3.0. 2022. Retrieved 12 December 2022.

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