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Christella quadrangularis (Fée) Holtt.   (redirected from: Thelypteris quadrangularis (Fée) Schelpe)
Family: Thelypteridaceae
[Aspidium germanii L'Herm. ex Fée, moreAspidium hispidulum Decne., Christella hispidula (Decne.) Holtt., Christella hispidula var. hispidula , Christella siamensis (Tag. & K. Iwats.) Holtt., Cyclosorus contiguus (Rosenst.) Ching, Cyclosorus falcatulus (Christ) Copel., Cyclosorus hirtopilosus (Rosenst.) Copel., Cyclosorus hispidulus (Decne.) Ching, Cyclosorus parasiticus subsp. manickirudorum (Fraser-Jenk. & Benniamin) Mazumdar & R.Mukhop., Cyclosorus quadrangularis (Fée) Tard., Cyclosorus repandulus (Alderw.) Ching, Cyclosorus siamensis (Tagawa & K.Iwats.) Panigrahi, Dryopteris contigua Rosenst., Dryopteris hirtopilosa Rosenst., Dryopteris hispidula (Decne.) O. Kuntze, Dryopteris limonensis Christ, Dryopteris parasitica var. falcatula Christ, Dryopteris quadrangularis (Fée) Alston, Dryopteris repandula Alderw., Nephrodium decipiens Fée, Nephrodium hispidulum (Decne.) Bak., Nephrodium quadrangulare Fée, Thelypteris contigua (Rosenst.) Reed, Thelypteris falcatula (Christ) C. Reed, Thelypteris hirtopilosa (Rosenst.) Reed, Thelypteris hispidula (Decne.) C.F. Reed, Thelypteris hispidula var. hispidula , Thelypteris parasitica subsp. manickirudorum Fraser-Jenk. & Benniamin, Thelypteris quadrangularis (Fée) Schelpe, Thelypteris quadrangularis var. quadrangularis , Thelypteris repandula (Alderw.) C. Reed, Thelypteris siamensis Tag. & K. Iwats.]
Christella quadrangularis image
  • FNA
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Alan R. Smith in Flora of North America (vol. 2)
Varieties 4 (1 in the flora): tropical and subtropical, North America, Mexico, West Indies in the Antilles, Central America, South America, Asia, Africa. This species and the next are included in Christella subg. Christella by R. E. Holttum (1982). The relationship between Old World and New World varieties is unstudied.

Christella quadrangularis
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The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.
The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.