1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium sertularioides Baker

        This species is accepted, and its native range is Rwanda.

    [FTEA]

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

    Type
    Type: Tanzania, Kilimanjaro, 9000–13000’, Johnston 26 (K!, holo.)
    Growth
    Growth form unknown.
    Leaves
    Fronds tufted, other details unknown.
    Rhizomes
    Rhizome scales (assumed from scales on lower stipe!) narrowly triangular, to 8 × 1 mm, attenuate at apex, or (assumed from very young Grimshaw frond) pale brown, ovate, to 8 × 2 mm, acute.
    Stipes
    Stipe up to at least 27 cm, with dark brown lobed scales to 8 mm.
    Leaf lamina
    Lamina subcoriaceous, oblong-lanceolate, 20–56 × 5–10 cm, 2-pinnatifid to 2–pinnatipartite to 3pinnatifid with the acroscopic basal lobe often enlarged and almost free, lower pinnae reduced and only shallowly lobed.
    Pinnae
    Pinnae in 24–35 pairs, lanceolate, 3.7–7.5 cm long, to 1 cm wide, pinnatifid, sessile, base unequal, acroscopic base with up to 8-lobed pinnule, costa shortly winged, lobes to 4 × 1.5 mm, glabous above, sparsely scaly beneath with narrow and several-thin-lobed scales to 1.5 mm long.
    Rachis
    Rachis with sparse scales to 4 mm long, with thin-lobed margin.
    Sori
    Sori 1 per lobe, about halfway up the lobe or in lower part, on the costule and emergent from the acroscopic margin, 1–2 mm long.
    Involucre
    Involucre 0.5–0.7 mm wide.
    Ecology
    Upper heath zone, mossy rock crevice in moorland; 3350–3500 m (excluded wide ‘range’ of type)
    Note
    I prefer to treat this as ‘unresolved’ until complete material has been collected. Pic. Serm. in B.J.B.B. 55: 151 (1985) treats specimens from the Virunga Mts, Rwanda as this taxon. He says it is allied to A. loxoscaphoides but differs mainly in broadly triangular reduced pinnae of the lower juga, and in the lowermost segments of the pinna, both the basiscopic and the acroscopic one, sharply distinct in shape and length from adjoining segments. Baker states in the protologue this taxon resembles most A. belangeri Kunze (which is an Asian species). I believe this is very much like rutifolium but the altitude is quite different, the stipe is too long, the pinnae too many; and for loxoscaphoides the pinnae are too short. Several specimens from high altitude in the Ruwenzori are superficially similar, but the sori are consistently long (3.5–4.5 mm). See next taxon, Asplenium ‘D586’.
    Distribution
    Flora districts: T2 Range: Not known elsewhere

    Distribution

    Asplenium sertularioides Baker appears in other Kew resources:

    First published in Trans. Linn. Soc. London, Bot. 2(15): 354 (1887)

    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
    • Johns, Pterid. trop. East Africa checklist: 67 (1991).
    • Trans. Linn. Soc. 2: 354 (1887)

    Sources

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