Open Access Open Access  Restricted Access Subscription or Fee Access


Hymenophyllum senterreanum Dubuisson & Deblauwe, sp. nov. (Hymenophyllaceae) and its relatives in western Central Africa

Jean-Yves Dubuisson, Sabine Hennequin, Vincent Droissart, Vincent Deblauwe


The fern genus Hymenophyllum (Hymenophyllaceae) so far encompassed not more than five species in western Central Africa. New investigations into BRLU and P collections on Hymenophyllaceae specimens collected in western Central Africa allowed us to identify a new species for the area. The species Hymenophyllum senterreanum sp. nov. displays indusia with an original and particular campanulate-like shape, usually observed in the distinct trichomanoid lineage. It seems endemic to sub-montane rainforests of coastal west-south Cameroon and Equatorial Guinea, and is currently known only from four localities. The novelty is considered as Endangered according to IUCN Categories and Criteria. An updated key is proposed for the genus Hymenophyllum for the region.


Campo-Ma’an National Park; Monte Alén National Park; ferns; Cameroon; Equatorial Guinea

Full Text:

PDF/A (2.42 MB)


Baker, J.G. (1867) Hymenophyllum In: Hooker, W.J. & Baker, J.G. (Eds.) Synopsis filicum 3. Hardwicke, London. pp. 56–71.

Baker, J.G. (1876) On a collection of ferns made by Mr. William Pool in the interior of Madagascar. Journal of the Linnean Society, Botany 15: 411–422.

Christensen, C. (1905) Index filicum. Hagerup, Copenhagen, 384 pp.

Christensen, C. (1934) Index filicum. Supplementum tertium pro annis 191733. Hagerup, Copenhagen, 219 pp.

Copeland, E.B. (1937) Hymenophyllum. Philippine Journal of Science 64: 1–188.

Copeland, E.B. (1938) Genera Hymenophyllacearum. Philippine Journal of Science 67: 1–110.

Desvaux, N.A. (1827) Prodrome de la famille des fougères. Mémoires de la Société Linnéenne de Paris 6: 171–337.

Ebihara, A., Dubuisson, J.-Y., Iwatsuki, K., Hennequin, S. & Ito, M. (2006) A taxonomic revision of the Hymenophyllaceae. Blumea 51: 221–280.

IUCN (2012) The IUCN red list of threatened species, version 2015-4. IUCN Red List Unit, Cambridge U.K. Available from: (accessed 24 November 2015)

Kornaś, J. (1993) Filmy Ferns (Hymenophyllaceae) of Central Africa (Zaire, Rwanda, Burundi). 1. Hymenophyllum. Fragmenta Floristica et Geobotanica 38: 3–19.

Kuhn, M. (1868) Filices Africanae. W. Engelman, Leipzig, 233 pp.

Linder, P.L. (2014) The evolution of African plant diversity. Frontiers in Ecology and Evolution 2: 38.

Linné, C. (1753) Species Plantarum Tomus II. L. Salvius, Stockholm, 640 pp.

Presl, C.B. (1843) Hymenophyllaceae. Eine botanische Abhandlung. G. Haase, Prague, 70 pp.

Presl, C.B. (1849) Epimeliae botanicae: cum tabulis quindecim lithographicis. A. Haase, Prague, 264 pp.

Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, 293 pp.

Smith, J.E. (1793) Tentamen botanicum de Filicum generibus dorsiferarum. Mémoires de l’Académie Royale des Sciences (Turin) 5: 401–422.

Swartz, O.P. (1801) Genera et species Filicum. Journal fur die Botanik (Schrader, H.A., ed.) 2: 1–120.

Tardieu-Blot, M.-L. (1941) Hyménophyllacées nouvelles ou litigieuses de Madagascar. Notulae Systematicae 10: 90–93.

Tardieu-Blot, M.-L. (1951) Hymenophyllacées. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores, famille 4. MNHN, Paris, pp. 16–38.

Thiers, B. (2015) Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: (accessed 30 October 2015)

Tryon, R.M. & Tryon, A.F. (1981). Taxonomic and nomenclatural notes on ferns. Rhodora 83: 133–137.

Van den Bosch, R.B. (1863) Hymenophyllaceas novas, cum ab aliis, tum a semet ipso distinctas ceu Synopsis Supplementum, exposuit. Nederlandsch Kruidkundig Archief 5: 135–217.

Von Jacquin, N.J. (1789) Collectanea Vol. III. Wappler, Vienna, 306 pp.

White, F. (1979) The Guineo-Congolian region and its relationships to other phytochoria. Bulletin du Jardin botanique national de Belgique 49: 11–55.

Willdenow, C.L. (1810) Species Plantarum. G.C. Nauk, Berlin, 542 pp.


  • There are currently no refbacks.

ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand