Adiantaceae - Maidenhairs and shoelace ferns
Photo: P. Ballings
Description of the family
Plants terrestrial, lithophytic or epiphytic. Small to medium sized ferns. Rhizome erect, suberect or creeping, with scales. Fronds numerous, spaced or tufted, monomorphic, simple and entire or divided, veins free or anastomising. Stipe dark, often shiny, not articulated. Sori in soral lines in marginal or submarginal grooves or along the veins, or borne marginally, covered by modified marginal pseudo-indusium, exindusiate; exindusiate; sporangia long or short stalked, paraphyses often present; spores trilete, homosporus.
Comment: Sometimes included as a subfamily in the Pteridaceae.
Worldwide: 12 genera, c. 300 species worldwide