Marattia

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Marattia
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Marattiopsida
Order: Marattiales
Family: Marattiaceae
Genus: Marattia
Swartz
Species

See text.

Marattia is a small genus of primitive, large, fleshy eusporangiate ferns. It is the type genus of the family Marattiaceae, Order Marattiales and Class Marattiopsida.[1] Formerly considered to be a much larger genus, genetic analysis has shown that Marattia in the broad sense was paraphyletic, and subsequently the genera Ptisana and Eupodium were split off.[2][3] Except for one species in Hawai'i, the genus is neotropical.

The plants are large and terrestrial, with more or less erect rhizomes and fronds being 2-5 times pinnate. Sporangia are fused into synangia, and spores are monolete.

Basal chromosome count is 2n=80. The type species is M. alata.

Species List[edit]

References[edit]

  1. ^ Smith, Alan R.; Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider, & Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon 55 (3): 705–731. doi:10.2307/25065646. JSTOR 25065646. 
  2. ^ 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. 
  3. ^ 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.