Saccoloma

Saccoloma is a fern genus in family Saccolomataceae.[2][3] It is the only genus in the family in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but further investigation is needed.[2] It is pantropical and its species are found in wet, shaded forest areas.[4] Saccoloma species are characterized by an omega-shaped (Ω) vascular bundle in the cross-sections of their petioles.[5][6] The common name soralpouch fern is used for Saccoloma.[7]

Saccoloma
Saccoloma inaequale
herbarium specimen
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Family: Saccolomataceae
Genus: Saccoloma
Kaulf.
Type species
Saccoloma elegans
Species

See text.

Synonyms[1]
  • Neuropteris Desv.
  • Orthiopteris Copel.

Phylogeny

Saccoloma includes Orthiopteris in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), with a total of 18 species.[2] As of August 2019, Plants of the World Online accepts the following species (which may be based on a wider circumscription of the genus). Synonyms are taken from the Checklist of Ferns and Lycophytes of the World.[8]

Phylogeny of Saccoloma[9][10]

S. galeottii (Fée) A.Rojas

S. sunduei A.Rojas

section Parasaccoloma

S. campylurum (Kunze) Mett. (syn. Orthiopteris campylura (Kunze) Copel.; Saccoloma caudatum Copel.; Saccoloma kingii (Bedd.) G.B.Nair)

S. ferulaceum (T.Moore) R.M.Tryon & A.F.Tryon (syn. Orthiopteris ferulacea (T. Moore) Copel.)

=Orthiopteris
section Saccoloma

S. domingense (Spr.) Prantl

S. elegans Kaulf. (syn. Saccoloma chartaceum G.B.Nair)

S. inaequale (Kunze) Mett.

S. brasiliense (C.Presl) Mett.

S. nigrescens (Mett.) A.Rojas

=Saccoloma s.s.

Other species include:

  • Saccoloma acuminatum (Rosenst.) Christenh. (syn. Orthiopteris acuminata (Rosenst.) Copel.)
  • Saccoloma cicutarioides (Baker) Christenh. (syn. Orthiopteris cicutarioides (Baker) Copel.)
  • Saccoloma firmum (Kuhn) C.Chr. (syn. Orthiopteris firma (Kuhn) Brownlie)
  • Saccoloma henriettae (Baker) C.Chr. (syn. Orthiopteris henriettae (Baker) Copel.)
  • Saccoloma laxum R.C.Moran & B.Øllg.
  • Saccoloma membranaceum Mickel
  • Saccoloma moranii A.Rojas
  • Saccoloma quadripinnatum A.Rojas
  • Saccoloma samoense (Hovenkamp & T.T.Luong) Christenh. (syn. Orthiopteris samoensis Hovenk. & T. T. Luong)
  • Saccoloma squamosum R.C.Moran
  • Saccoloma tenue (Brack.) Mett. (syn. Orthiopteris tenuis (Brack.) Brownlie)
  • Saccoloma trichophyllum (Copel.) G.B.Nair (syn. Orthiopteris trichophylla Copel.)

References
  1. "Saccoloma Kaulf". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-08-14.
  2. PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
  3. Christenhusz et al. "A linear sequence of extant families and genera of lycophytes and ferns" Phytotaxa 19: 7-54. 18 Feb. 2011
  4. Rojas-Alvarado "Novelties in the Saccoloma inaequale complex (Saccolomataceae) from the neotropics" Métodos en Ecología y Sistemática 5(1): 1-16. Apr 2010
  5. Saccoloma inaequale petiole Image at PlantSystematics.org 01 Feb 2012
  6. Saccoloma dominguense petiole Image at PlantSystematics.org 01 Feb 2012
  7. USDA, NRCS (n.d.). "Saccoloma". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 26 October 2015.
  8. Hassler, Michael & Schmitt, Bernd (June 2019). Checklist of Ferns and Lycophytes of the World. Vol. 8. Retrieved 2019-08-14.
  9. 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.
  10. "Tree viewer: interactive visualization of FTOL". FTOL v1.5.0 [GenBank release 256]. 2023. Retrieved 17 August 2023.
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