Saccolomataceae is a family of
ferns in the order
Polypodiales with about 19
species. It has been formerly treated as part of the
Dennstaedtiaceae, however it has been classified as its own family according to Smith et al. (2006)[2] The genus Saccoloma has been classified to include Orthiopteris, but the phylogeny of the group not yet fully understood.[3] The family includes a dozen known species.[4]
Description
Saccolomataceae generally have the following characteristics: Terrestrial; rhizomes short-creeping to erect and trunk-like;
petioles each with an omega-shaped vascular strand; blades pinnate to decompound and lacking articulate hairs; veins free; sori terminal on the veins;
indusia pouch- or cup-shaped.[2]
Taxonomy
In 2016 the Pteridophyte Phylogeny Group placed it as the sole family in the Saccolomatineae, one of six
suborders making up the Polypodiales order. These suborders are phylogenetically related as shown in this
cladogram:
Pryer, Kathleen M.; Schneider, Harald; Smith, Alan R.; Cranfill, Raymond; Wolf, Paul G.; Hunt, Jeffrey S.; Sipes, Sedonia D. (2001). "Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants". Nature. 409 (6820): 618–622.
doi:
10.1038/35054555.
PMID11214320.
S2CID4367248.
Smith, Alan R.; Pryer, Kathleen M.; Schuettpelz, Eric; Korall, Petra; Schneider, Harald; Wolf, Paul G.
Fern classification(PDF). pp. 417–467., in
Ranker & Haufler (2008)