Saccoloma is a fern genus in family Saccolomataceae.Christenhusz et al. "A linear sequence of extant families and genera of lycophytes and ferns" Phytotaxa 19: 7-54. 18 Feb. 2011 It is the only genus in the family in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but further investigation is needed. It is pantropical and its species are found in wet, shaded forest areas.Rojas-Alvarado "Novelties in the Saccoloma inaequale complex (Saccolomataceae) from the neotropics" Métodos en Ecología y Sistemática 5(1): 1-16. Apr 2010 Saccoloma species are characterized by an omega-shaped (Ω) vascular bundle in the cross-sections of their petioles.Saccoloma inaequale petiole Image at PlantSystematics.org 01 Feb 2012Saccoloma dominguense petiole Image at PlantSystematics.org 01 Feb 2012 The common name soralpouch fern is used for Saccoloma.
Phylogeny Saccoloma includes Orthiopteris in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), with a total of 18 species. , 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.
Phylogeny of Saccoloma
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