1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium dregeanum Kunze

        This species is accepted, and its native range is Tropical & S. Africa, Comoros, Madagascar.

    [FWTA]

    Aspleniaceae, A. H. G. Alston. Flora of West Tropical Africa. Ferns and Fern-Allies Supplement. 1959

    Ecology
    On trees and rocks in shade; up to 7, 600 ft. alt.
    [FTEA]

    Aspleniaceae, Henk Beentje. Flora of Tropical East Africa. 2008

    Type
    Type: South Africa, Transkei, between Umzimvubu [Omsamwubo] and Umsikaba [Omsamcaba] Rs., Drège 158 (LZ†, holo.; BM, lecto. – not found, HBG, iso., photo.!)
    Habit
    Epiphyte, lithophyte or terrestrial.
    Rhizomes
    Rhizome erect, to 5 mm diameter, with brown lanceolate to narrowly ovate dark brown clathrate rhizome scales to 3 (?–5) mm long with pale entire margin. Frond tufted, erect to arching, herbaceous, proliferous below the apex.
    Stipes
    Stipe greyish-brown, 4–17 cm long, with narrow green wings when fresh, usually less than half the length of the lamina, with occasional clathrate scales similar to those of the rhizome becoming more frequent towards the base.
    Leaf lamina
    Lamina very narrowly oblong to narrowly oblong-elliptic in outline, 10–39 × 2.5–6 cm, 2pinnatisect to 3-pinnatifid on basal acroscopic lobes, lowest pinnae hardly reduced, apical segment deeply pinnatifid with 3–5 lobes.
    Pinnae
    Pinnae 13–32 pairs, petiolate, rhombic-oblong or narrowly oblong in outline, up to 3.5 × 1.1 cm, variously acuteauriculate with the acroscopic basal lobe 2–4-fid, base dimidiate with basiscopic margin formed by midrib for 1/3 of pinna, most of the other segments very narrowly oblong-obtuse (some larger segments 2-fid) up to 6 × 1.5 mm, subglabrous with a few minute substellate scales on the veins.
    Rachis
    Rachis matt-greyish-green when dry, with occasional pale brown minute substellate scales.
    Sori
    Sori one central per pinna lobe, broadly elliptic at maturity, 2–3 mm long.
    Indusium
    Indusium elliptic, membranous, entire, to 1 mm wide. Fig. 7: 8, p. 42.
    Ecology
    Moist forest, either a low epiphyte, terrestrial, or on mossy rocks, often by stream-sides; 850–1900(–2100) m
    Conservation
    Widespread; least concern (LC). Four collections from Kenya, but not uncommon in Uganda and Tanzania.
    Note
    De Boer et al. 784 from T 7, Sanje Falls, has the pinnae longer and more regular than usual. While the type of A. gracile does not seem to be present in the Berlin herbarium, another specimen from the Uluguru Mts, Mlari stream, Peter 32241! has been seen; this was cited by Peter with the nomen nudum.
    Distribution
    Range: Tropical Africa from Sierra Leone to East Africa and south to South Africa, Madagascar, Comoro Is. Flora districts: U1 U2 U4 K4 K5 K7 T1 T3 T4 T6 T7 T8

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Cape Provinces, Comoros, Equatorial Guinea, Ethiopia, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mozambique, Nigeria, Northern Provinces, Rwanda, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Asplenium dregeanum Kunze appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2006 Peter, A. [32241], Tanzania K000424003
    Nov 1, 2003 Cheek, M. [10465], Cameroon K000746302
    Jul 1, 2001 Cable, S. [3218], Cameroon K000108997
    Jul 1, 2001 Cable, S. [3585], Cameroon K000109126
    Jul 1, 2001 Cable, S. [2504], Cameroon K000109131
    Jul 1, 2001 Etuge, M. [4000], Cameroon K000109125
    Jul 1, 2001 Sidwell, K. [410], Cameroon K000108996
    Jul 1, 2001 Sidwell, K. [388], Cameroon K000108994
    Jul 1, 2001 Ryan, P. [417], Cameroon K000108995
    Jul 1, 2001 Sebsebe [5094], Cameroon K000108993
    Jul 1, 2001 Zapfack, L. [606], Cameroon K000108992
    Jul 1, 2001 Mackinder, B. [140], Cameroon K000109130
    Jul 1, 2001 Barlow, L. [7], Cameroon K000109129
    Jan 1, 2001 Cable, S. [1608], Cameroon K000109132
    Jan 1, 2001 Groves, M. [175], Cameroon K000108991
    Sep 1, 1996 Cheek, M. [7810], Cameroon K000108990
    Sep 1, 1996 Wheatley, J.I. [389], Cameroon K000380414
    Sep 1, 1996 Balding, S. [42], Cameroon K000381453
    Jan 1, 1996 Upson, T. [58], Cameroon K000381452
    Jan 1, 1996 Upson, T. [49], Cameroon K000381459
    Harris, T. [15], Mozambique K000545019
    Harris, T. [150], Mozambique K000613225
    Harris, T. [579], Mozambique K000614170

    First published in Linnaea 10. 517. 1836. Mett. n. 66. H (1836)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). World Ferns: Checklist of Ferns and Lycophytes of the World Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of West Tropical Africa
    • Tard. in Mém. I.F.A.N. 28: 28 : 197 (1953).
    • Sim F.S.A. 166, t. 67 (1915)
    • Hook. Syn. Fil. 221 (1867)
    • in Linnaea 10 : 517 (1836)
    Flora of Tropical East Africa
    • U.K.W.F. ed. 2: 29 (1994).
    • Johns, Pterid. trop. East Africa checklist: 63 (1991)
    • Burrows, S. Afr. Ferns: 236, map, figs. (1990)
    • B.J.B.B. 55: 130 (1985)
    • Schelpe, F.Z. Pteridophyta: 184 (1970)
    • Alston, Ferns W.T.A.: 59 (1959)
    • Linnaea, 10: 517 (1836)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of West Tropical Africa
    Flora of West Tropical Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0