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

        This species is accepted, and its native range is W. Tropical Africa to Sudan and Tanzania, Madagascar.

    [FWTA]

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

    Ecology
    On rocks.
    [FTEA]

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

    Type
    Lectotype: Country unclear, Kanesse, Stuhlmann 936 (B!, lecto., chosen here)
    Habit
    Epiphyte or lithophyte.
    Rhizomes
    Rhizome scales 2.5–8 × 0.3–0.5 mm, attenuate at apex, margin paler and entire or with outgrowths. Rhizome short-creeping or erect, to 5 mm diameter, with dark brown narrowly triangular
    Leaves
    Fronds closely spaced or tufted, to 40 cm long, erect, not proliferous.
    Stipes
    Stipe dark brown, 6–28 cm long, at first densely set with scales similar to those of the rhizome, later becoming subglabrous except near the base.
    Leaf lamina
    Lamina narrowly oblong, 6–38 × 1.6–5(–8.8) cm, 1-pinnate to 2pinnatifid or 2-pinnatisect (rarely 3-pinnatifid), the lower pinnae slightly reduced, with a terminal pinna similar to lateral ones.
    Pinnae
    Pinna in 8–15 pairs, opposite in midfrond, narrowly ovate-triangular to ovate in outline, up to 3(–4.5) × 1.6(–2.5) cm, subsessile, palmately to pinnately divided into 3–5 serrate lobes to 1 cm long, the central lobe prominent and serrate (rarely to 3.7 × 1.2 cm, and deeply pinnatisect), with a few minute scales or glabrous.
    Rachis
    Rachis dark brown at first densely set with shining scales similar to those on the stipe, glabrescent.
    Sori
    Sori many, may cover lower pinna surface, linear, (1–)3–10 mm long.
    Indusium
    Indusium linear, membranous, 0.4–0.5 mm wide, entire to slightly erose. Fig. 5: 12–13, p. 30.
    Ecology
    Moist forest, miombo woodland, sometimes (often?) on rock outcrops and in rock crevices; 1200–1700 m but type presumably from much lower altitude
    Conservation
    Widespread; least concern (LC)
    Note
    When one compares the types and protologues of A. stuhlmannii and A. ramlowii hardly any differences are apparent. The size range of rhizome scales in ramlowii is slightly greater, and pinnae number is slightly smaller in ramlowii. The type of A. ramlowii is a minimalist bunch of scraps, but probably really the same as the rest of the taxon so named. Var. laciniatum looks quite different, much more incised, but Uhlig 106 has a single frond divided in the same way as the type of laciniatum, while the other fronds are as in the typical variety. The dimensions are indicated in brackets in the above description. Information received after the text was completed: Dr A Braithwaite informs me re Braithwaite 316, that there is a clear cytological difference between this material and A. stuhlmannii. It has the same chromosome number as material of A. simii Dr Braithwaite collected from Knysna, South Africa. i. e. n = 144, while A. stuhlmannii is tetraploid with n = 72. A. simii is recorded as ‘excluded species’ (page 69) but this will obviously have to be revisited during follow-up treatments! The pinnae look quite like uppermost few pinnae of A. albersii (now in A. aethiopicum). The Kenyan Kassner specimen and T 1, Moru Kopjes, Apr. 1961, Greenway & Miles Turner 10033! are the only ones that have the pinnae divided into discrete pinnules, which in turn are lobed. Another Kenyan specimen, K 3, Uasin Gishu District: Kipkarren, Aug. 1931, Brodhurst-Hill 49! is sterile, but looks very much like this species.
    Distribution
    Range: Burundi, Zambia, Mozambique, Zimbabwe Flora districts: U2 K 3?, K4 K7 T1 T3 T7

    Images

    Distribution

    Native to:

    Burundi, Cameroon, Central African Repu, Guinea, Ivory Coast, Kenya, Madagascar, Nigeria, Rwanda, Sierra Leone, Sudan, Tanzania, Uganda

    Asplenium stuhlmannii Hieron. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Schweinfurth [3915], Sudan K000423906 syntype
    Timberlake, J. [5007], Mozambique K000613386

    First published in 83. 1895 (1895)

    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: 190, t. 36, fig. 3 (1953).
    • in Engl.Pflanzenw. Ost–Afr. C: 83 (1895)
    Flora of Tropical East Africa
    • U.K.W.F. ed. 2: 30, t. 173 (1994).
    • Johns, Pterid. trop. East Africa checklist: 67 (1991)
    • B.J.B.B. 55: 152 (1985)
    • Alston, Ferns W.T.A.: 59 (1959)
    • P.O.A. C: 83 (1895)

    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