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031.0000 Family Dennstaedtiaceae Lotsy; Vortr. Bot. Stammesgesch. 2: 655 (1909), as ´Dennstaedtineaceae´
11 genera, ca. 230 spp. Phylogeny: Triana-Moreno et al. (2023)
Species listed in database: 242; hybrids: 9
= Hypolepidaceae Pic.Serm.; Webbia 24: 705 (1970)
= Pteridiaceae Ching; Acta Phytotax. Sin. 13: 96 (1975)
= Monachosoraceae Ching; Acta Phytotax. Sin. 14: 17 (1978)
031.2004 Genus Paesia A.St.-Hil.; Voy. Distr. Diam. 1: 381 (1833)
Distribution: Taiwan and Sumatra to New Caledonia and New Zealand, 3 tropical America
Species listed in database: 12
species :
Paesia acclivis (Kunze) Kuhn; Festschr. 50jähr. Jubiläum Königstädt. Realschule zu Berlin [Chaetopterides] 347 (1882)
Distribution: Venezuela (Bolívar, Merida, Trujillo); Ecuador
82 VEN 83 ECU
Synonyms: hidden
= Allosorus acclivis Kunze; Farrnkräuter 2: 6 (1848)
= Cincinalis acclivis (Kunze) Trevis.; Atti Soc. Ital. Sci. Nat. 17(2): 239 (1874)
= Pteris acclivis (Kunze) Mett.; Fil. Hort. Bot. Lips. 59 (1856)
= Paesia acclivis var. polystichoides C.V.Morton; Fieldiana, Bot. 28(1): 13 (1951)
species :
Paesia anfractuosa (Christ) C.Chr.; Index Filic. 333 (1905), 476 (1906)
Distribution: Costa Rica; Panama
80 COS PAN
Synonyms: hidden
= Gymnogramma amaurophylla Christ; Bull. Herb. Boissier, Sér. 2, 4: 1097 (1904)
= Gymnogramma anfractuosa Christ; Bull. Soc. Roy. Bot. Belgique 85: 235 (1896)
= Pteris anfractuosa (Christ) Christ; Bull. Herb. Boissier, Sér. 2, 5: 257 (1905)
species :
Paesia bivalvis (Alderw.) R.M.Tryon & A.F.Tryon; Rhodora 84(837): 127 (1982)
Distribution: Sumatra
42 SUM
Synonyms: hidden
= Hypolepis bivalvis Alderw.; Bull. Jard. Bot. Buitenzorg, Sér. 2, 16: 19, t. 6 (1914)
species :
Paesia divaricatissima (Dryand. ex Baker) Copel.; Bull. Bernice P. Bishop Mus. 98: 56 (1932)
Distribution: Society Isl. (Tahiti)
61 SCI
Synonyms: hidden
= Cheilanthes divaricatissima Dryand.; ms.
= Pteris divaricatissima Baker; Syn. Fil. [W.J.Hooker & Baker], ed. 2: 163 (1874)
species :
Paesia elmeri Copel.; Leafl. Philipp. Bot. 3: 826 (1910)
Distribution: peninsular Malaysia (Fraser´s Hill and Gunung Tahan, Pahang); Sumatra; Philippines (Mindanao)
42 MLY PHI SUM
species :
Paesia glandulosa (Sw.) Kuhn; Festschr. 50jähr. Jubiläum Königstädt. Realschule zu Berlin [Chaetopterides] 347 (1882)
Distribution: Costa Rica; Panama; Cuba; Jamaica; Hispaniola (Haiti); Colombia (Antioquia, Boyacá, Cauca, Chocó, Cundinamarca, Huila, Meta, Nariño, Norte de Santander, Santander, Valle); Venezuela (Amazonas, Aragua); Ecuador; Peru; Bolivia (Cochabamba, La Paz); Brazil (Minas Gerais)
80 COS PAN 81 CUB HIS JAM 82 CLM VEN 83 BOL ECU PER 84 BRA
Synonyms: hidden
= Allosorus scalaris Moritz; ms.
= Cheilanthes glandulifera T.Moore; Index Fil. [T. Moore] 242 (1861), nom. illeg., non Liebm. 1849 nec Fée 1873
= Cheilanthes glandulosa Sw.; Kongl. Vetensk. Acad. Handl. 1817: 77 (1817)
= Cincinalis viscosa (A.St.-Hil.) Trevis.; Atti Soc. Ital. Sci. Nat. 17(2): 239 (1874)
= Gymnogramma glandulosa (Sw.) Christ; Pl. Nov. Mineir. [Schwacke] 2: 18 (1900)
= Ornithopteris glutinosa J.Sm.; Hist. Fil. 299 (1875)
= Paesia amazonica (Christ) C.Chr.; Index Filic. 476 (1906)
= Paesia scalaris (Mett.) Kuhn; Festschr. 50jähr. Jubiläum Königstädt. Realschule zu Berlin [Chaetopterides] 347 (1882)
= Paesia viscosa A.St.-Hil.; Voy. Distr. Diam. 1: 381 (1833)
= Pteris amazonica Christ; Hedwigia 44: 364 (1905)
= Pteris resistens Mett.; Fil. Hort. Bot. Lips. 59 (1856), nom. nud.
= Pteris scalaris Mett.; Abh. Senckenberg. Naturf. Ges. 2(2): 282 (1858)
= Pteris scalaris Moritz; Bot. Zeitung (Berlin) 856 (1854), nom. nud.
= Pteris viscosa (A.St.-Hil.) T.Moore; Gard. Chron. 1858: 878 (1858)
species :
Paesia laevis Copel.; Univ. Calif. Publ. Bot. 18: 218 (1942)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Paesia luzonica Christ; Philipp. J. Sci. 3: 276 (1908)
Distribution: Taiwan; Philippines
38 TAI 42 PHI
Conservation Status: extremely rare in Taiwan, recently rediscovered, for a while treated there as ´P. radula´
Synonyms: hidden
= Paesia taiwanensis W.C.Shieh; J. Jap. Bot. 45: 16 1, f. 1 (1970)
species :
Paesia radula (Baker) C.Chr.; Index Filic. 476 (1906)
Distribution: Sumatra; Borneo (Mt. Kinabalu, Sabah); Sulawesi; Philippines; Java; Moluccas (Seram); New Guinea (Irian Jaya, Papua New Guinea)
42 BOR JAW MOL NWG PHI SUL SUM
Synonyms: hidden
= Pteris radula Baker; J. Bot. 18: 211 (1880)
= Paesia lamiana Alderw.; Nova Guinea 14: 35 (1924)
species :
Paesia rugosula (Labill.) Kuhn; Festschr. 50jähr. Jubiläum Königstädt. Realschule zu Berlin [Chaetopterides] 347 (1882)
Distribution: New Guinea (Papua New Guinea); New Caledonia; Marquesas Isl. (Nuku Hiva, Ua Huka, Ua Pou, Hiva Oa, Tahuata, Fatu Hiva); Society Isl.
42 NWG 60 NWC 61 MRQ SCI
Synonyms: hidden
= Allosorus rugosulus (Labill.) Guill.; Ann. Sci. Nat., Bot., Sér. 2, 6: 314 (1836)
= Cheilanthes rugosula (Labill.) E.Fourn.; Ann. Sci. Nat., Bot., Sér. 5, 18: 326 (1873)
= Cincinalis rugulosa (Labill.) Trevis.; Atti Soc. Ital. Sci. Nat. 17(2): 239 (1874)
= Hypolepis rugosula (Labill.) Hook.; Sp. Fil. [W.J.Hooker] 2: 68 (1852) (non J. Sm. (1846))
= Ornithopteris rugosula (Labill.) J.Sm.; Hist. Fil. 299 (1875)
= Paesia rugulosa (Labill.) Diels; Nat. Pflanzenfam. [Engler & Prantl] I, 4: 297 (1899), orth. var.
= Pteris rugosula Labill.; Sert. Austro-Caledon. 6, t. 8 (1824)
species :
Paesia scaberula (A.Rich.) Kuhn; Festschr. 50jähr. Jubiläum Königstädt. Realschule zu Berlin [Chaetopterides] 347 (1882)
Name: Hard fern, Scented fern, Ring fern, Lace fern, Matata (Maori)
Distribution: New Zealand (North Isl., South Isl., Stewart Isl., Three Kings Isl.); Chatham Isl.
51 CTM NZL
Synonyms: hidden
= Allosorus scaberulus (A.Rich.) C.Presl; Tent. Pterid. 154 (1836)
= Cincinalis scaberula (A.Rich.) Trevis.; Atti Soc. Ital. Sci. Nat. 17(2): 239 (1874)
= Ornithopteris scaberula (A.Rich.) J.Sm.; Hist. Fil. 299 (1875)
= Pteris microphylla A.Cunn.; Compan. Bot. Mag. 2: 366 (1836) (non Sw. (1806) nec Colla (1836))
= Pteris scaberula A.Rich.; Voy. Astrolabe 82, t. 11 (1832)
species :
Paesia tahitensis Copel.; Bull. Bernice P. Bishop Mus. 93: 10, t. 11 (1932)
Distribution: Society Isl. (Tahiti)
61 SCI
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A complete, synonymic checklist of the Higher Plants of the World


Version 25.11 (Nov. 11th, 2025)

Covering 357,753 accepted species,
8,806 hybrids, 48,075 accepted infraspecific taxa and 1,004,944 synonyms,
in total 1,419,578* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


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