Aspleniaceae -

The classification of Aspleniaceae has historically been a subject of debate among botanists. Under the PPG I (Pteridophyte Phylogeny Group) classification system, the family is considered and primarily consists of only two genera:

: Other species grow directly on the forest floor in moist, organic-rich soil. Economic and Cultural Importance The family holds significant value in several fields: Aspleniaceae - an overview | ScienceDirect Topics aspleniaceae

: Many species, particularly in temperate regions, are specialized for growing in the crevices of rocks and stone walls (e.g., Maidenhair Spleenwort ). The classification of Aspleniaceae has historically been a

Members of Aspleniaceae are characterized by several distinct physical features that aid in field identification: particularly in temperate regions

: A smaller genus of about 40 tropical and subtropical species, distinguished by its creeping rhizomes and specific chromosome counts .

: The petiole (leaf stalk) typically contains two C-shaped vascular bundles at the base that fuse into a single X-shape near the leaf tip.

: The rhizomes (stems) and the base of leaf stalks are covered in scales that have a lattice-like or "clathrate" appearance when viewed under a lens.