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021.0000 Family Metaxyaceae Pic.Serm.; Webbia 24: 701 (1970)
1 genus, 6 spp.
Species listed in database: 6
= Metaxyoideae B.K.Nayar; Taxon 19: 235 (1970)
021.0001 Genus Metaxya C.Presl; Tent. Pterid. 59 (1836)
Distribution: trop. America. Revision: Cárdenas et al. (2016). Checklist revised by H. Tuomisto (2021)
Species listed in database: 6
= Amphidesmium J.Sm.; Ferns Brit. Foreign 167 (1866)
species :
Metaxya contamanensis Tuomisto & Cárdenas; Kew Bull. 71(5): 11-14 (2016)
Distribution: Peru (Amazonas, Cuzco, Loreto, Pasco, San Martín, Ucayali); Bolivia (Cochabamba, La Paz)
83 BOL PER
species :
Metaxya elongata Tuomisto & Cárdenas; Kew Bull. 71(5): 11-14 (2016)
Distribution: Mexico (Chiapas); Guatemala; Belize; Honduras; Costa Rica; Panama; Colombia (Antioquia, Bolívar, Cauca, Chocó, Norte de Santander, Valle); Venezuela (Zulia)
79 MEX 80 BLZ COS GUA HON PAN 82 CLM VEN
species :
Metaxya lanosa A.R.Sm. & Tuomisto; Syst. Bot. 26(3): 480-483 (2001)
Distribution: Colombia (Guainía, Vaupés); Venezuela (Amazonas); Guyana; Peru (Loreto); Brazil (Amazonas)
82 CLM GUY VEN 83 PER 84 BRA
species :
Metaxya parkeri (Hook. & Grev.) J.Sm.; London J. Bot. 1: 668 (1842)
Distribution: Guadeloupe; Trinidad; Colombia (Amazonas, Boyacá, Caquetá, Vaupés); Venezuela (Amazonas, Bolívar, Carabobo); Guyana; Surinam; French Guiana; Ecuador (Napo, Orellana, Pastaza, Sucumbíos); Peru (Loreto, Madre de Dios); Bolivia (Beni, Cochabamba, La Paz, Santa Cruz); Brazil (Acre, Amazonas, Pará, Rondônia, Roraima, Bahia, Maranhão, Mato Grosso)
81 GDL TRT 82 CLM FRG GUY SUR VEN 83 BOL ECU PER 84 BRA
Synonyms: hidden
= Alsophila blechnoides var. polycarpa Hook.; Sp. Fil. [W.J.Hooker] 1: 35 (1844)
= Amphidesmium blechnoides var. polycarpum (Hook.) T.Moore; Index Fil. [T. Moore] 62 (1857)
= Amphidesmium parkeri (Hook. & Grev.) Schott; Gen. Fil. [Schott] ad t. 5 (1834)
= Amphidesmium parkeri var. majus Fée; Crypt. Vasc. Brésil 1: 175 (1869)
= Polypodium parkeri Hook. & Grev.; Icon. Filic. t. 232 (1831)
species :
Metaxya rostrata (Kunth) C.Presl; Tent. Pterid. 59 (1836)
Distribution: Colombia (Amazonas, Vaupés); Venezuela (Amazonas); Peru (Amazonas, Huánuco, Loreto, Madre de Dios, Pasco, San Martín, Ucayali); Brazil (Amazonas)
82 CLM VEN 83 PER 84 BRA
Synonyms: hidden
= Alsophila blechnoides Hook.; Sp. Fil. [W.J.Hooker] 1: 35 (1844), nom. illeg. superfl.
= Alsophila rostrata (Kunth) Mart.; Icon. Pl. Crypt. 64, t. 39 (1834)
= Amphidesmium blechnoides (Hook.) Klotzsch; Linnaea 20: 372 (1847)
= Amphidesmium rostratum (Kunth) J.Sm.; London J. Bot. 1: 201 (1842)
= Aspidium rostratum Kunth; Nov. Gen. Sp. [H.B.K.] 1: 12 (1815)
= Cyathea blechnoides (Hook.) Domin; Pteridophyta 262 (1929), et Acta Bot. Bohem. 9: 88-174 (1930)
= Polypodium blechnoides Rich.; Actes Soc. Hist. Nat. Paris 1: 114 (1791), nomen
= Polypodium humboldtii Poir.; Encycl. [J.Lamarck et al.] Suppl. 4: 497 (1816), nom. nov. for Polypodium rostratum Humb. & Bonpl. ex Willd.
= Polypodium rostratum Humb. & Bonpl. ex Willd.; Sp. Pl., ed. 4 [Willdenow] 5(1): 193 (1810) (non Burm.f. (1768) nec Cav. (1802))
species :
Metaxya scalaris Tuomisto & Cárdenas; 71(5): 23-25 (2016)
Distribution: Venezuela (Bolívar); Guyana; Surinam; French Guiana; Brazil (Amazonas, Pará)
82 FRG GUY SUR VEN 84 BRA
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A complete, synonymic checklist of the Higher Plants of the World

Version 26.08 (August 2nd, 2026)

Covering 360,349 accepted species,
8,927 hybrids, 47,544 accepted infraspecific taxa and 1,011,667 synonyms,
in total 1,428,487* names

[*about 20,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]

With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life