Didymoglossum petersii

Didymoglossum petersii, the dwarf bristle fern,[2] is a species in the family Hymenophyllaceae,[1] (filmy ferns). It is one of three filmy ferns native to a significant area of the United States. It is found only in the nine most southeastern states, south of the Kentucky/Virginia - Tennessee/North Carolina dividing line, as well as in Mexico and Guatemala.

Didymoglossum petersii
Illustration (original as Trichomanes petersii)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Hymenophyllales
Family: Hymenophyllaceae
Genus: Didymoglossum
Species:
D. petersii
Binomial name
Didymoglossum petersii
(A.Gray) Copel.[1]
Synonyms[1]
  • Didymoglossum reptans var. schaffneri (Schltdl.) E.Fourn.
  • Hemiphlebium petersii (A.Gray) Prantl
  • Microgonium petersii (A.Gray) Bosch
  • Trichomanes petersii A.Gray
  • Trichomanes schaffneri Schltdl.

The genus Didymoglossum is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[3] but not by some other sources. As of October 2019, Plants of the World Online merged the genus into a broadly defined Trichomanes, treating this species as Trichomanes petersii.[4]


References
  1. Hassler, Michael & Schmitt, Bernd (August 2019). "Didymoglossum petersii". Checklist of Ferns and Lycophytes of the World. 8.10. Retrieved 2019-10-08.
  2. "Trichomanes petersii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 23 February 2018.
  3. PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229.
  4. "Didymoglossum petersii (A.Gray) Copel.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-10-09.
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