Hymenophyllum Explained

Hymenophyllum is a genus of ferns in the family Hymenophyllaceae. Its name means "membranous leaf", referring to the very thin translucent tissue of the fronds, which gives rise to the common name filmy fern for this and other thin-leaved ferns. The leaves are generally only one cell thick and lack stomata, making them vulnerable to desiccation. Consequently, they are found only in very humid areas, such as in moist forests and among sheltered rocks. They are small and easy to overlook.

Species

, World Ferns accepted the following extant species:[1]

Extinct species include:

See also

External links

Notes and References

  1. Web site: Hassler . Michael . 2004–2022 . Genus Hymenophyllum J.E.Sm. . World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 14.1 . 2022-10-12 .
  2. Pigg . K. B. . DeVore . M. L. . Greenwood . D. R. . Sundue . M. A. . Schwartsburd . P. . Basinger . J. F. . 2021 . Fossil Dennstaedtiaceae and Hymenophyllaceae from the Early Eocene of the Pacific Northwest . International Journal of Plant Sciences . 182 . 9 . 793–807 . 10.1086/715633 . 239036762 .