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Issue: Vol. 608 No. 1: 15 Aug. 2023
Type: Monograph
Published: 2023-08-15
DOI: 10.11646/phytotaxa.608.1.1
Page range: 1-65
Abstract views: 177
PDF downloaded: 25

Synoptic Revision of Aspleniaceae (Asplenium, Hymenasplenium) of Rwanda

Institute for Integrated Natural Sciences–Biology; University of Koblenz; Universitätsstraße 1; 56070 Koblenz; Germany
Botanical Gardens Bonn University; Meckenheimer Allee 171; D-51115 Bonn; Germany
Pteridophytes Albertine Rift endemics Asplenium markusbeckeri sp. nov. A. ramicola sp. nov. A. uschiae sp. nov. Eastern D.R. Congo.

Abstract

Forty-four species of Asplenium and one species of Hymenasplenium are recorded for Rwanda. Three species, Asplenium markusbeckeri Eb.Fisch. & Lobin, A. ramicola Eb.Fisch. & Lobin, and A. uschiae Eb.Fisch. & Lobin are described as new to science. The new species are illustrated and their affinities are discussed. Eleven species represent new country records for Rwanda: Asplenium adiantum-nigrum var. adiantum-nigrum, A. africanum, A. boltonii, A. burundense, A. cancellatum, A. ceii, A. christii, A. inaequilaterale, A. lividum, A. trichomanes subsp. quadrivalens and Hymenasplenium kenyense. A key to all Aspleniaceae recorded from Rwanda is provided, and representative specimens from Rwanda are cited. The phytogeography of the Aspleniaceae of Rwanda is discussed. Two lectotypes are designated for Asplenium mildbraedii and A. trichomanes subsp. quadrivalens. Three species previously recorded for Rwanda (Asplenium goetzei, A. kassneri, A. lademannianum) are excluded from the flora.

 

References

  1. Alston, A.H.G. (1944) Asplenium exhaustum. In: Exell, A.W. (Ed.) Catalogue of the Vascular Plants of Sao Tomé. Museum of Natural History, London. pp. 76.
  2. Alston, A.H.G. (1951) Asplenium annettii. Boletin de la Sociedad Española de Historia Natural Seccion Biologica 49: 193.
  3. Alston, A.H.G. (1956) New African Ferns. Boletim de la Sociedade Broteriana Seria 2, 30: 5–27.
  4. Baker, J.G. (1887) Asplenium (§ Darea) loxoscaphoides, Baker n. sp. In: Oliver, D. XVII. Enumeration of the plants collected by Mr. H.H.Johnston on the Kilimanjaro Expedition, 1884. Transactions of the Linnean Society, London, Second Series, Botany 15: 327–355, pl. 60–63. https://doi.org/10.1111/j.1095-8339.1887.tb01008h.x
  5. Baker, J.G. (1888) Asplenium schweinfurthii. Transactions Royal Society Edinburgh 31: 328, t.100.
  6. Baker, J.G. (1901) Asplenium ruwenzoriense Baker n.sp. I. Diagnoses Africanae, XIII. Bulletin of Miscellaneous Information, Royal Botanic Gardens, Kew 1901: 137. https://doi.org/10.2307/4114925
  7. Ballard, F. (1938) Tabula 3367 Asplenium biafranum Alston et Ballard. Hooker’s Icones Plantarum 34: t. 3367.
  8. Bamps, P. (1975) Itinéraire et lieux de récolte de Mildbraed lors de sa première expedition en Afrique Centrale (1907-1908). Bulletin du Jardin Botanique national de Belgique 45: 159–179. https://doi.org/10.2307/3667595
  9. Bamps, P. (1990) Auguste Taton (1914-1989). Bulletin du Jardin Botanique national de Belgique 60: 3–7. https://doi.org/10.2307/3668219
  10. Becherer, A. (1929) Nachtrag zu: A. Becherer, Pteridologische Beiträge (dieses Heft, S. 24–29). Berichte der Schweizer Botanischen Gesellschaft 38: 180.
  11. Becherer, A. (1935) Note sur deux espèces d’Asplenium. Candollea 6: 22–24.
  12. Beentje, H.J. (2008) Aspleniaceae. In: Beentje, H.J. & Ghazanfar, S.A. (eds.) Flora of Tropical East Africa. A.A.Balkema, Rotterdam, 75 pp.
  13. Beentje, H.J. (in prep.) Aspleniaceae. In: Janßen, T. & Sosef, M. (eds.) Flore d’Afrique Centrale (Rep. Dem. Congo Rwanda Burundi) Pteridophyta n.s.
  14. Bergius, P. (1786) Caenopteris, novum e filicibus genus, descriptum. Acta Academiae Scientiarum Imperii Petropoli 6: 248–250.
  15. Herbarium Berolinense (2022) Virtuelles Herbarium: Digital specimen images at the Herbarium Berolinense (bgbm.org). Available from: http://ww2.bgbm.org/herbarium/default.cfm (accessed 15 October 2022).
  16. Bindseil, R. (2008) Ruanda im Lebensbild des Afrikaforschers, Literaten und Kaiserlichen Residenten Richard Kandt (1867-1918). Trier, 399 pp.
  17. Bizzarri, M.P. (1985) Selaginellaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Meise, Jardin botanique national de Belgique. 55 pp.
  18. Bonaparte, R. Napoléon (1925) Asplenium nigrocoloratum. Notes Ptéridologiques 16: 188.
  19. Braithwaite, A.F. (2008) The cytotaxonomy of the Asplenium stuhlmannii complex (Aspleniaceae, Pteridophyta) in Africa. Fern Gazette 18: 81–90.
  20. Brause, G. (1910) Cyatheaceae, Osmundaceae, Marattiaceae, Ophioglossaceae, Lycopodiaceae. In: Mildbraed, J. (ed.) Wissenschaftliche Ergebnisse der deutschen Zentral-Afrika Expedition 1907-1908 unter Führung Adolf Friedrichs, Herzogs zu Mecklenburg 2. Leipzig, Klinkhardt & Biermann, pp. 1–2, 37, 37, 38, 38–39.
  21. Brause, G. & Hieronymus, G. (1910) Polypodiaceae. In: Mildbraed, J. (ed.) Wissenschaftliche Ergebnisse der deutschen Zentral-Afrika Expedition 1907-1908 unter Führung Adolf Friedrichs, Herzogs zu Mecklenburg 2. Klinkhardt & Biermann, Leipzig, pp. 2–36.
  22. Brause, G. & Hieronymus, G. (1915) Pteridophyta africana nova vel non satis cognita. Botanische Jahrbücher für Systematik und Pflanzengeographie 53: 376–433.
  23. Burmann, N.L. (1768) Flora Indica: cui accedit series zoophytorum indicorum, nec non Prodromus Florae Capensis. Cornelius Haak, Leiden. 241 pp. https://doi.org/10.5962/bhl.title.60581
  24. Burrows, J.E. (1989) New taxa, combinations and records of Pteridophyta from southern and central Africa. Bothalia 19 (2): 167–174. https://doi.org/10.4102/abc.v19i2.955
  25. Chaerle, P. & Viane, R. (2004) Leaf anatomy and the occurrence of false veins in Asplenium. (Aspleniaceae, Pteridophyta). Botanical Journal of the Linnean Society 145: 187–194. https://doi.org/10.1111/j.1095-8339.2003.00272.x
  26. Chaerle, P. & Viane, R. (2007) A new species of Asplenium (Aspleniaceae, Pteridophyta) from Ethiopia. Novon 17: 148–153. https://doi.org/10.3417/1055-3177(2007)17[148:ANSOAA]2.0.CO;2
  27. Christ, H. (1909) Diagnoses plantarum Africae. Plantes nouvelles de l’Afrique tropicale francaise décrites d’après les collections de M. Auguste Chevalier. Filices. Journal de Botanique (Morot) ser. 2, 2: 19 – 24.
  28. Christensen, C. (1924) Über die Farne des Kenia und Mt. Aberdare, tropisches Ostafrika. In: Fries, R.E. & Fries, T.C.E. Beiträge zur Kenntnis der Flora des Kenia, Mt. Aberdare und Mt. Elgon. VI. Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 9: 173–188. https://doi.org/10.2307/3994334
  29. Desvaux, N.A. (1811) Observations sur quelques nouveaux genres des fougères et sur plusieurs espèces nouvelles de la même famille. Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 5: 297–330.
  30. Dodoens, R. (1616) Stirpium historiae pemptades sex. Plantin-Moretus, Antwerp. 872 pp.
  31. Don, D. (1825) Prodromus Florae Nepalensis. Londinium. 256 pp.
  32. Dzwonko, Z. & Kornaś, J. (1994) Patterns of Species Richness and Distribution of Pteridophytes in Rwanda (Central Africa): A Numerical Approach. Journal of Biogeography 21: 491–501. https://doi.org/10.2307/2845653
  33. Fée, A.L.A. (1852) Genera Filicum. Exposition des genres de la famille des Polypodiacées (Classe des fougères). Cinquième Mémoires sur la famille des fougères. J.B.Baillière & Victor Masson, Vve Berger-Levrault et Fils, Paris & Strasbourg. pp. 387, tab. XXIX.
  34. Fischer, E. & Lobin, W. (2022) The genus Isoetes (Isoetaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi) with the description of three new species. Willdenowia 52: 315–334. https://doi.org/10.3372/wi.52.52303
  35. Fischer, E. & Lobin, W. (2023a) Synoptic Revision of the exindusiate species of Dryopteris (Dryopteridaceae) from Central Africa (Democratic Republic of the Congo, Rwanda, Burundi) with description of Dryopteris schizopaleata sp. nov. from Rwanda. Phytotaxa 587 (2): 136–148. https://doi.org/10.11646/phytotaxa.587.2.3
  36. Fischer, E. & Lobin, W. (2023b) Synoptic Revision of Diplazium (Athyriaceae) in Rwanda with description of Diplazium cyamudongoense sp. nov. Phytotaxa 600 (3): 169–183. https://doi.org/10.11646/phytotaxa.600.3.4
  37. Fischer, E. & Lobin, W. (2023c) Checklist of Lycopodiopsida (Clubmosses and Quillworts) and Polypodiopsida (Ferns) of Rwanda. Willdenowia (submitted).
  38. Fraser-Jenkins, C.R. (2008) Taxonomic Revision of Three Hundred Indian Subcontinental Pteridophytes With a Revised Census-List: A New Picture of Fern-Taxonomy and Nomenclature in the Indian Subcontinent. Bishen Singh Mahendra Pal Singh, Dehra Dun.
  39. Fraser-Jenkins, C.R., Ghandi, K., Kholia, B. & Benniamin, A. (2017) An annotated checklist of Indian Pteridophytes. Part – 1 (Lycopodiaceae to Thelypteridaceae). Bishen Singh Mahendra Pal Singh, Dehra Dun. 562 pp.
  40. Götzen, G.A. von (1895) Durch Afrika von Ost nach West. Resultate und Begebenheiten einer Reise von der Deutsch-Ostafrikanischen Küste bis zur Kongomündung in den Jahren 1893/94. Berlin, Reimer. 417 pp.
  41. Hemp, A. & Crouch, N.E. (2018) Asplenium arcumontanum (Aspleniaceae), a new species from the Eastern Arc Mountains of Tanzania. Kew Bulletin 73 (4): 1–9. [https://www.jstor.org/stable/45391194] https://doi.org/10.1007/s12225-018-9777-y
  42. Herzog zu Mecklenburg, A.F. (1909) Ins innerste Afrika. Klinkhardt & Biermann, Leipzig, 476 pp.
  43. Hieronymus, G. (1895) Pteridophyta. In: Engler, A. (ed.) Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete. Teil C. Verzeichnis der bis jetzt aus Ost-Afrika bekannt gewordenen Pflanzen. Berlin. pp. 77–91.
  44. Hieronymus, G. (1900) Filicales. In: Engler, A. III. Die von W. Goetze und Dr. Stuhlmann im Ulugurugebirge, sowie die von W. Goetze in der Kisaki- und Khutu-Steppe und in Uhehe gesammelten Pflanzen. Botanische Jahrbücher für Systematik und Pflanzengeographie 28: 339–349.
  45. Hieronymus, G. (1910) Selaginellaceae. In: Mildbraed, J. (ed.) Wissenschaft­liche Ergebnisse der deutschen Zentral-Afrika Expedition 1907-1908 unter Führung Adolf Friedrichs, Herzogs zu Mecklenburg 2. Klinkhardt & Biermann, Leipzig. pp. 39–40.
  46. Hieronymus, G. (1911) Polypodiacearum species novae vel non satis cognitae africanae. Botanische Jahrbücher für Systematik und Pflanzengeographie 46: 345–404.
  47. Hooker, W.J. (1860) Species Filicum. III. W. Pamplin, London. 291 pp., tab. CXLI–CCX.
  48. Hooker, W.J. (1861) A second century of ferns. Dulau & Co., London, VII–XII, tab. I–C.
  49. Hooker, W.J. & Baker, J.G. (1865) Synopsis Filicum; or a synopsis of all known ferns. Robert Hardwicke, Piccadilly, London. 517 pp.
  50. Hooker, W.J. & Baker, J.G. (1868) Synopsis Filicum; or a synopsis of all known ferns. Robert Hardwicke, Piccadilly, London. pp. 222.
  51. Houlston, J. & Moore, T. (1851) The genera and species of cultivated ferns. Sub-order-Polypodiaceae-Tribe: Asplenieae (continued). The Gardeners’ Magazine of Botany, Horticulture, Floriculture, and Natural Science 3: 257–265.
  52. Jeanpert, M.E. (1921) Fougères du Cameroun. Séance du 24 juin 1921. Bulletin de la Societé Botanique de France 68: 324–329. https://doi.org/10.1080/00378941.1921.10836784
  53. Kew Herbarium Catalogue (2022) Available from: http://apps.kew.org/herbcat (accessed 15 November 2022).
  54. Kew Plants of the World online (2022) Available from: https://powo.science.kew.org (accessed 10 October 2022).
  55. Kornaś, J. & Nowak, K.A. (1991) Contribution to the fern flora of Rwanda. Zeszyty Naukowe Universytetu Jagiellonskiego Prace Botaniczne – Zeszyt 22: 7–14.
  56. Kornaś, J., Nowak, K.A. & Matyjaszkiewicz, M. (1993) Atlas of distribution of pteridophytes in Rwanda (Central Africa). Zeszyty Naukowe Uniwersytetu Jagiellońskiego: Prace Botaniczne 25: 1–137.
  57. Kramer, K.U. (1971) Lindsaeaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Bruxelles. 7 pp.
  58. Krasser, F. (1900) Filices, Lycopodiaceae et Selaginellaceae. In: Zahlbruckner, A. Plantae pentherianae. Aufzählung der von Dr. A. Penther und in seinem Auftrage von P. Krook in Südafrika gesammelten Pflanzen. Annalen des Naturhistorischen Hofmuseums Wien 15: 4, t. 1.
  59. Kuhn, M. (1867) Filices Deckenianae. W.Engelmann, Leipzig. 32 pp.
  60. Kuhn, M. (1868) Filices Africanae. W.Engelmann, Leipzig. 233 pp.
  61. Kuhn, M. (1869) Reliquiae Mettenianae. Linnaea 2: 41–169.
  62. Kuhn, M. (1879) Cryptogamae vasculares. In: v. Pless, A. (ed.) Baron Carl Claus von der Decken’s Reisen in Ost Afrika in den Jahren 1859-61 III. Abteilung 3 Botanik. F.Winter, Leipzig & Heidelberg. pp. 7–61.
  63. Kunkel, G. (1965) Asplenium harleyanum, ein neuer Streifenfarn aus Westafrika. Berichte der Schweizerischen Botanischen Gesellschaft 75: 54–55.
  64. Kunth, C. (1816) Nova genera et species plantarum. Tomus primus. Libraria Graeco-Latino-Germanicae, Paris, III–LVIII, 377, pp., tab. 1–96.
  65. Kunze, G. (1836) Acotyledonearum Africae australioris recensio nova. Linnaea 10: 481–570.
  66. Kunze, G. (1851) Filices Nilagiricae. Linnaea 24: 239–299.
  67. Launert, E. (1975) Marsileaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 7 pp.
  68. Lawalrée, A. (1969a) Actiniopteridaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 9 pp.
  69. Lawalrée, A. (1969b) Equisetaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 5 pp.
  70. Lawalrée, A. (1969c) Parkeriaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 5 pp.
  71. Lawalrée, A. (1969d) Psilotaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 5 pp.
  72. Lawalrée, A. (1970) Schizaeaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 5 pp.
  73. Lawalrée, A. (1971) Blechnaceae. In: Bamps, P. (ed.) Flore du Congo du Rwanda et du Burundi. Jardin botanique national de Belgique, Meise. 11 pp.
  74. Lawalrée, A. (1976) Azollaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 5 pp.
  75. Lawalrée, A. (1989) Lycopodiaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 22 pp.
  76. Lawalrée, A. (1993) Davalliaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 8 pp.
  77. Lawalrée, A. (2000) Nephrolepidaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Congo-Kinshasa – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 16 pp.
  78. Lewalle, J. (1973) Osmundaceae. In: Bamps, P. (ed.) Flore d’Afrique Centrale (Zaïre – Rwanda – Burundi). Jardin botanique national de Belgique, Meise. 5 pp.
  79. Linnaeus, C. (1753) Species Plantarum 2. Impensis Laurentii Salvii Holmiae. pp. 561–1200.
  80. Linnaeus, C. (1767) Mantissa Plantarum Generum Editionis VI et Specierum Editionis II. 142 pp. https://doi.org/10.5962/bhl.title.119809
  81. Lovis, J.D. (1964) The taxonomy of Asplenium trichomanes in Europe. British Fern Gazette 9 (5): 147–160.
  82. Meise Botanic Garden (2022) Databases. Plantentuin Meise. Available from: http://www.botanicalcollections.be (accessed 1 September 2022).
  83. Mettenius, G. (1864) Asplenium theciferum. Annales des Sciences Naturelles, Botanique Série 5 (2): 227.
  84. Meyer, D.E. (1962) Zur Zytologie der Asplenien Mitteleuropas (XXIX. Abschluß). Berichte der Deutschen Botanischen Gesellschaft 74: 449–461. https://doi.org/10.1111/j.1438-8677.1962.tb01861.x
  85. Mildbraed, J. (ed.) (1910) Wissenschaftliche Ergebnisse der deutschen Zentral-Afrika-Expedition unter Führung Adolf Friederichs, Herzogs zu Mecklenburg. II Botanik. Klinkhardt & Biermann Leipzig. 718 pp. [ferns on pages 1–40]
  86. Moore, T. (1861) Loxoscaphe nigrescens T.Moore. Index Filicum (T.Moore). 14–15: 297.
  87. Peter, A.F. (1929) Flora von Deutsch-Ostafrika. Zusammenstellung der in Deutsch-Ostafrika beobachteten farnartigen Gewächse und Blütenpflanzen. Repertorium specierum novarum regni vegetabilis Beihefte 40.
  88. Pichi Sermolli, R.E.G. (1940) Felici raccolte da G. Cei nel territorio dei Galla e Sidama e cenni sulle loro stazioni. II. Studio sistematico delle specie raccolte e considerazione sulla foresta del Caffa. Nuovo Giornale Botanico Italiano N.S. 47: 7–23. https://doi.org/10.1080/11263504009439766
  89. Pichi Sermolli, R.E.G. (1973) Fragmenta Pteridologiae - III. Webbia 27 (20: 389–460. https://doi.org/10.1080/00837792.1973.10669981
  90. Pichi Sermolli, R.E.G. (1977a) Novitates pteridologicae aethiopicae. Webbia 32: 51–68. https://doi.org/10.1080/00837792.1977.10670082
  91. Pichi Sermolli, R.E.G. (1977b) Fragmenta Pteridologiae – VII. Webbia 32 (1): 69–93. https://doi.org/10.1080/00837792.1977.10670083
  92. Pichi Sermolli, R.E.G. (1983a) Fragmenta Pteridologiae – VIII. Webbia 37 (1): 111–140. https://doi.org/10.1080/00837792.1983.10670267
  93. Pichi Sermolli, R.E.G. (1983b) A Contribution to the Knowledge of the Pteridophyta of Rwanda, Burundi, and Kivu (Zaire) I. Bulletin du Jardin botanique National de Belgique / Bulletin van de Nationale Plantentuin van België 53 (1/2): 177–284. https://doi.org/10.2307/3668036
  94. Pichi Sermolli, R.E.G. (1985) A Contribution to the Knowledge of the Pteridophyta of Rwanda, Burundi, and Kivu (Zaire) II. Bulletin du Jardin botanique National de Belgique / Bulletin van de Nationale Plantentuin van België 55 (1/2): 123–206. https://doi.org/10.2307/3668014
  95. Plumtre, A.J., Davenport, T.R.B., Behangana, M., Kityo, R., Eilu, G., Ssegawa, P., Ewango, C., Meirte, D., Kahindo, C., Herremans, M., Peterhans, J.K., Pilgrim, J.D., Wilson, M., Languy, M. & Moyer, D. (2007) The biodiversity of the Albertine Rift. Biological Conservation 134: 178–194. https://doi.org/10.1016/j.biocon.2006.08.021
  96. Robyns, W. (1947) Flore des Spermatophytes du Parc National Albert II. Gymnospermes et Choripétales. Institut des Parcs Nationaux du Congo Belge. IX–LVI, 627 pp.
  97. Robyns, W. (1948) Flore des Spermatophytes du Parc National Albert I. Sympétales. Institut des Parcs Nationaux du Congo Belge. IX–LVI, 745 pp.
  98. Robyns, W. & Tournay, R. (1955) Flore des Spermatophytes du Parc National Albert III. Monocotylées. Institut des Parcs Nationaux du Congo Belge. IX–LVI, 571 pp.
  99. Rosenstock, E. (1908) Filices novae IV. Repertorium Specierum Novarum Regni Vegetabilis 6: 175–179. https://doi.org/10.1002/fedr.4870040103
  100. Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23: I–XIV, 296 pp.
  101. Schrader, H.A. (1818) Analecta ad Floram Capensem Sect. I. Filices, Lycopodineae. Göttingische gelehrte Anzeigen 2 (92): 913–920. [J.C.Baier.]
  102. Schelpe, E.A.C.L.E. (1967) New taxa of Pteridophyta from South East Tropical Africa. Bulletin of the Broterian Society 41: 203–217.
  103. Schelpe, E.A.C.L.E. (1968) Three new species of ferns from Southern Africa. Journal of South African Botany 34: 235–241.
  104. Sledge, W.A. (1965) The Ceylon species of Asplenium. Bulletin of the British Museum (Natural History), Botany 3: 235–278.
  105. Spirlet, M. (1959) Guttiferae congolanae novae. Bulletin du Jardin Botanique de l‘État Bruxelles 29: 319–358. [https://www.jstor.org/stable/3667130] https://doi.org/10.2307/3667130
  106. Tardieu-Blot, M.-L. (1949) Fougères nouvelles d’Afrique récoltées par M. Schnell. Notulae Systematicae 13: 370–373.
  107. Tardieu-Blot, M.-L. (1958) 5e Famille. 7. Aspléniacées (Aspleniaceae). In: Humbert, H. (ed.) Flore de Madagascar et des Comores (plantes vasculaires). Gouvernement général de Madagascar & Muséum Nat. d’Hist. Nat. Paris, pp. 180–247.
  108. Tardieu-Blot, M.-L. (1964a) 3. Ptéridophytes. In: Aubréville, A. (ed.) Flore du Cameroun. Muséum Nationaled’HistoireNaturelleParis. 372 pp.
  109. Tardieu-Blot, M.-L. (1964b) Ptéridophytes. In: Aubréville, A. (ed.) Flore du Gabon 8. Muséum Nat. d’Hist. Nat. Paris. 225 pp.
  110. Tardieu-Blot, M.-L. (2008) Aspléniacées. In: Bosser, J., Badré, F. & Guého, J. (eds.) Flore des Mascareignes. Ptéridophytes. IRD édition Kew, Paris. pp. 365–402.
  111. Thiers, B. (2020+) [continuously updated] Index herbariorum. A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 22 Jan. 2022)
  112. Thunberg, C.P. (1800) Prodromus Plantarum Capensium. Pars Posterior. XXXIV – XLVIII. J.F.Edmann, Upsala. 85–191.
  113. Troupin, G. (1978) Flore du Rwanda Spermatophytes 1. Annales Musée Royal de l’Afrique Centrale – Tervuren, Belgique Série IN-8°, Sciences Économiques 9: 413.
  114. Troupin, G. (1983) Flore du Rwanda. Spermatophytes 2. Annales du Musée Royal de l’Afrique Centrale –Tervuren, Belgique Série IN-8°, Sciences Économiques 13: 603.
  115. Troupin, G. (1985) Flore du Rwanda. Spermatophytes 3. Annales du Musée Royal de l’Afrique Centrale –Tervuren, Belgique, Sciences Économiques 15: 729.
  116. Troupin, G. (1988) Flore du Rwanda. Spermatophytes 4. Annales du Musée Royal de l’Afrique Centrale – Tervuren, Belgique Serie IN-8°, Sciences Économiques 16: 651.
  117. Tryon, R. (1970) The classification of the Cyatheaceae. Contributions of the Gray Herbarium from Harvard University 200: 3–53. https://doi.org/10.5962/p.336422
  118. Viane, R.L.L. (2021) Aspleniaceae of Madagascar. A revision with annotations from the Mascarenes, the Comoros, TAAF, and continental Africa. University Press Wachtebeke, 247 pp.
  119. Viane, R.L.L. & Reichstein, T. (1992) Notes about Asplenium II: Some new names and combinations in Asplenium L., (Aspleniaceae, Pteridophyta). Biolisches Jahrbuch Dodonaea 59: 157–165.
  120. Willdenow, C.L. (1810) Caroli a Linné Species Plantarum. Editio Quarta, Tomus V, 1. G.C. Gauk, Berlin. 778 pp.
  121. Wright, C.H. (1908) Asplenium elliottii: 262. In: XXXIV: Diagnoses Africanae: XXIII. Bulletin of Miscellaneous Information Kew 1908 (6): 257–262. https://doi.org/10.2307/4111575
  122. Xu, K.-W., Chen, C.-W., Kamau, P., Liao, W.-B. & Zhang, L.-B. (2019) Four new species of the fern genus Hymenasplenium (Aspleniaceae) from Africa and Asia. Phytotaxa 416: 32–42. https://doi.org/10.11646/phytotaxa.416.1.4