1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium sandersonii Hook.

        This species is accepted, and its native range is Tropical & S. Africa, W. Indian Ocean.

    [FTEA]

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

    Type
    Type: South Africa, Natal, Field’s Hill, Sanderson s.n. (NH , holo.)
    Habit
    Gregarious epiphyte,
    Rhizomes
    Rhizome erect to suberect, ± 3 mm diameter, with tufted fronds and with dark brown lanceolate-attenuate entire clathrate rhizome scales 2–3.5 mm long.
    Leaves
    Fronds arching, fleshy to coriaceous, 1-pinnate, proliferating with a bud at the end of a naked extension of the rachis. The frond tips rooting at the tip to form dense colonies.
    Stipes
    Stipe straw-colored, 1–9 cm, sulcate when dry, glabrous except for occasional subulate clathrate scales up to 1.5 mm long.
    Leaf lamina
    Lamina simply pinnate, 5–30 × 1.5–4 cm, pinnae in 12–23 pairs, shortly petiolate, rhombic-dimidiate to obliquely cuneate tending to half-moon-shaped.
    Pinnae
    Pinna 0.6–2 × 0.3–1 cm, shallowly lobed into 2–9 entire obtuse lobes on the acroscopic margins, subglabrous with occasional minute brown stellate scales ± 0.5 mm diameter on the dorsal surface.
    Rachis
    Rachis straw-colored, with narrow green wings, set with sparse subulate brown scales and minute paler substellate scales.
    Sori
    Sori brown, (1–)2–8 per pinna, oblong, to 3 mm long.
    Indusium
    Indusium oblong, fimbriate, semi-transparent.
    Figures
    Fig. 2: 9–10, p. 14.
    Ecology
    Moist forest and forest margins, epiphytic on living and dead stems of many species, from ground level up to 7 m high, may be locally common and mat-forming; occasionally on wet rock; (680–)950–2650(–3100) m
    Conservation
    Widespread; least concern (LC)
    Note
    Kuhn describes his A. debile as having a creeping rhizome, and does not mention the apex of the lamina; the same goes for his A. melleri; both were included in the synonymy of A. sandersonii by Schelpe. A. vagans Baker was described without having its leaf apex mentioned; it, too, was included under A. sandersonii by Schelpe. I have included these provisionally. Luke & Luke 5007 from T 7, Udzungwa Mts, Sonjo-Mwanihana route, 680 m, is a young sterile plant, but almost certainly this species; it is already budding at several leaf tips. It grows at a much lower altitude than normal in East Africa.
    Distribution
    Range: Widespread in tropical and South Africa, Madagascar, Comoros Flora districts: U1 U2 U3 U4 K1 K3 K4 K5 K6 K7 T1 T2 T3 T4 T6 T7
    [FWTA]

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

    Ecology
    Epiphyte especially on old cacao trees; at low elevations up to 2, 500 ft. alt.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Cape Provinces, Comoros, Equatorial Guinea, Ethiopia, Gabon, Gulf of Guinea Is., Kenya, KwaZulu-Natal, Madagascar, Malawi, Mauritius, Mozambique, Nigeria, Northern Provinces, Rwanda, Sudan, Tanzania, Uganda, Zaïre, Zimbabwe

    Asplenium sandersonii Hook. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2008 Mungai, G. [3166], Kenya K000438374
    Jul 1, 2001 Etuge, M. [2575], Cameroon K000109020
    Jul 1, 2001 Zapfack, L. [950], Cameroon K000109019
    Jan 1, 1996 Thomas, D.W. [9700], Cameroon K000518588
    Jan 1, 1996 Cheek, M. [5885], Cameroon K000381432
    La Croix, I.F. [5021], Congo K000501430
    Harris, T. [87], Mozambique K000545077
    Meller, C.J. [s.n.], Madagascar Asplenium melleri K001208355 Unknown type material

    First published in Sp. Fil. 3. 147 t. 179. 1860. HB. 196. (1860)

    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 Tropical East Africa
    • U.K.W.F. ed. 2: 27, t. 172 (1994).
    • Johns, Pterid. trop. East Africa checklist: 67 (1991)
    • Burrows, S. Afr. Ferns: 229, map, figs. (1990)
    • Schelpe, F.Z. Pteridophyta: 183, t. 53b (1970)
    • Mém. Inst. Fr. Afr. Noire, 28: 175, t. 33/4–5 (1953)
    • Sim, Ferns S. Afr. ed. 2: 139, t. 43/1 (1915)
    • Sp. Fil. 3: 147, t. 179 (1860)

    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