Blechnum serrulatum

Richard

Actes Soc. Hist. Nat. Paris 1: 114. 1792.

Common names: Swamp fern marsh fern dentate midsorus fern
Treatment appears in FNA Volume 2.
Revision as of 19:47, 16 December 2019 by FNA>Volume Importer

Stems stout, horizontal and long-creeping, branched, partly erect at tip, rarely climbing tree trunks. Leaves ± monomorphic, widely spaced, erect to arching. Petiole dull yellow or grayish brown or light brown, 10-55 cm, finely scaly proximally. Blade broadly linear to elliptic-lanceolate, 1-pinnate throughout, with conform terminal pinnae, 25-70 × 5-28 cm, base truncate, glabrous. Rachis lacking indument abaxially. Pinnae articulate to rachis except for terminal pinna, subsessile to short-stalked; larger pinnae ± straight, linear to linear-elliptic or linear-lanceolate, 3-15 × 0.5-1.8 cm, fertile pinnae often slightly smaller and contracted; margins serrulate; costae with indument of scales abaxially. 2n = 72.


Habitat: Swamps, marshes, wet prairies, and adjacent moist pine woods or hammocks
Elevation: 0 m

Distribution

V2 372-distribution-map.gif

Fla., Central America, South America.

Discussion

Plants of Blechnum serrulatum occurring in open sun are often dwarfed and stiffly erect. Those occurring in brackish conditions or perennially flooded areas may become hemiepiphytes.

Selected References

None.

Lower Taxa

None.