Biology:Plenasium banksiifolium

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Short description: Species of fern

Plenasium banksiifolium
Gardenology.org-IMG 0804 rbgs10dec.jpg
Plenasium banksiifolium
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Osmundales
Family: Osmundaceae
Genus: Plenasium
Species:
P. banksiifolium
Binomial name
Plenasium banksiifolium
(C.Presl) C.Presl
Synonyms[1]
  • Asplenium aureum Blume
  • C.Presl (C.Presl) Kuhn
  • Miq. Osmunda presliana
  • Osmunda banksiifolia var.bromeliifolia J.Sm.
  • Nephrodium bromeliifolium (C.Presl) Kuhn
  • (Blume) C.Presl Plenasium bromeliifolium
  • Osmunda bromeliifolia (C.Presl) C.Presl
  • Nephrodium banksiifolium C.Presl
  • (C.Presl) Copel. (Miq.) A.E.Bobrov
  • Osmunda haenkeana Osmunda banksiifolia
  • C.Presl Plenasium oxyodon
  • Plenasium aureum Osmunda oxyodon

Plenasium banksiifolium is a fern in the family Osmundaceae.[1] The genus Plenasium is recognized in the Pteridophyte Phylogeny Group classification of 2016 (PPG I);[2] however, some sources place all Plenasium species in a more broadly defined Osmunda, treating this species as Osmunda banksiifolia.[3] It is native along the Pacific coast of Asia, being found in the Kamchatka Peninsula, the Ryukyu Islands, Japan , southeast China , Taiwan, the Philippines , Borneo, Sulawesi and Java.[3] P. banksiifolium, which can reach a height of 1.5 m, is the largest species in the genus and has ornamental value.[4]

Description

The appearance of the fertile pinnae are very different from that of the sterile pinnae, the fertile pinnae are curled. The sporangia can also grow on the vegetative pinnae immediately above and below the fertile pinnae, with a compact shape; so we might say that P. banksiifolium has three types of pinnae: fertile, sterile, and semi-fertile. The young opening sterile pinnae are red, the fertile pinnae are mustard yellow at first, then turn green and finally reddish brown. The fertile pinnae can reach more than ten pairs.

References

  1. 1.0 1.1 Hassler, Michael; Schmitt, Bernd (August 2019), "Plenasium banksiifolium", Checklist of Ferns and Lycophytes of the World, Version 8.10, https://worldplants.webarchiv.kit.edu/ferns/, retrieved 2019-10-02 
  2. 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 
  3. 3.0 3.1 "Osmunda banksiifolia Ching", Plants of the World Online (Royal Botanic Gardens, Kew), https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:17168450-1, retrieved 2019-10-02 
  4. "粗齿紫萁" (in zh). iPlant.cn, Flora Reipublicae Popularis Sinicae. https://www.iplant.cn/info/Osmunda%20banksiifolia?t=z. 

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