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  1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium holstii Hieron.

        This species is accepted, and its native range is Tropical Africa.


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

    Type: Tanzania, Usambara, Bumbu-Fustii near Masheua, Holst 8726 (B!, syn. – or lecto., chosen by R.Viane – on detslip at B, dated Sept. 1985); Shagaia near Mbaramu, Holst 3701 (B!, syn.)
    Epiphyte, lithophyte or rarely terrestrial.
    Rhizome erect or shortly ascending, 5–20 mm diameter and 7 cm long, with narrowly triangular clathrate (dark cell walls, translucent lumen) rhizome scales up to 13 × 2.7 mm, wider and almost ovate at base, margin irregularly and sparsely hair-lobed, apex very acuminate and ending in a hair.
    Fronds tufted, rarely shortly spaced, erect or pendulous.
    Stipe pale matt grey-brown, gradually attenuate from lamina but sometimes up to 20 cm long and to 4 mm diameter, at the very base with scales similar to rhizome, elsewhere at first clothed with scales similar to those of rhizome but smaller, to 6 × 0.5 mm, soon becoming subglabrous.
    Leaf lamina
    Lamina dark glossy green above, paler beneath, fleshy, elliptic to linearoblong, 30–100 × (2–)2.5–7 cm, simple, base attenuate, margin obscurely undulate or subentire to undulate-crenulate near apex, apex acute to acuminate or occasionally rounded or caudate, glabrous or occasionally with fimbriate-ciliate scales to 4 × 0.25 mm with hair-like apex.
    Leaf veins
    Costa ± flat; lateral veins visible, furcate, not reaching margin.
    Sori along the veins, usually extending from near the costa to 1/2 – 3/4 of the distance to the margin, linear, 5–33 mm long.
    Indusium membranous, entire, 0.5–1.4 mm wide.
    Fig. 1: 3–5, p. 9.
    Moist forest, often near streams; low epiphyte, on moist rocks, or rarely terrestrial; 400–1950 m
    Widespread; least concern (LC)
    Bob Johns has made a special study of this group and feels that there are some twelve taxa, distinguishable by spore characters. Near A. africanum Desv.; only differs in rhizome scales which are slightly wider, with a margin that has protuberances; and geographically.
    Range: Malawi, Mozambique, Zimbabwe Flora districts: K6 K7 T2 T3 T6 T7


    Native to:

    Ivory Coast, Kenya, Malawi, Mozambique, Tanzania, Uganda, Zaïre, Zimbabwe

    Other Data

    Asplenium holstii Hieron. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2008 Festo et al. [2840], Tanzania K000449716
    Mphamba [58], Mozambique K000614277
    Kamau [594], Kenya K000696561


    First published in Bot. Jahrb. Syst. 46: 348 (1911)

    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.


    Flora of Tropical East Africa

    • Johns, Pterid. trop. East Africa checklist: 63 (1991).
    • Schelpe, F.Z. Pteridophyta: 170, t. 53h (1970)
    • E.J. 46: 348, t. 53/h (1911)


    Flora of Tropical East Africa
    Flora of Tropical East Africa

    Herbarium Catalogue Specimens
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    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.