Austroblechnum divergens

Austroblechnum divergens, synonyms including Blechnum divergens, Blechnum rimbachii and Blechnum floresii, is a species of fern in the family Blechnaceae.[1]

Austroblechnum divergens
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Blechnaceae
Genus: Austroblechnum
Species:
A. divergens
Binomial name
Austroblechnum divergens
(Kunze) Gasper & V.A.O.Dittrich[1]
Synonyms[1]
  • Acrostichum heterophyllum Raddi
  • Blechnum divergens (Kunze) Mett.
  • Blechnum exaltatum (Fée) Duek
  • Blechnum floresii (Sodiro) C.Chr.
  • Blechnum plumieri var. divergens (Kunze) Luetzelb.
  • Blechnum rimbachii (Sodiro) C.Chr.
  • Lomaria divergens Kunze
  • Lomaria exaltata Fée
  • Lomaria floresii Sodiro
  • Lomaria lherminieri var. exaltata (Fée & L'Herm.) Krug
  • Lomaria rimbachii Sodiro
  • Struthiopteris exaltata (Fée) Broadh.

Austroblechnum divergens in its broader circumscription is native from Mexico to southern Brazil.[1]

Some sources treat the taxon known by the synonym Blechnum rimbachii as a distinct species;[2] if so, it is endemic to Azuay Province, Ecuador (found 2,000 m above sea level), and is only known from an early 20th century collection. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss for agriculture.[3]

Similarly, the synonym Blechnum floresii is regarded as representing a separate species by some sources. If so, it is endemic to Ecuador, where it is known from only two locations in Pichincha Province. It grows in coastal forest habitat and the forests of the low Andes. It is threatened by habitat loss.[4]

Sources
  1. Hassler, Michael & Schmitt, Bernd (November 2019). "Austroblechnum divergens". Checklist of Ferns and Lycophytes of the World. 8.11. Retrieved 2019-12-24.
  2. "Blechnum rimbachii C.Chr.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-12-24.
  3. Navarrete, H. & Pitman, N. (2003). "Blechnum rimbachii". The IUCN Red List of Threatened Species. IUCN. 2003: e.T43596A10809397. doi:10.2305/IUCN.UK.2003.RLTS.T43596A10809397.en. Retrieved 20 December 2017.
  4. Navarrete, H. & Pitman, N. 2003. Blechnum floresii. The IUCN Red List of Threatened Species. Version 2015.2. Downloaded on 01 September 2015.



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