1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium praegracile Rosenst.

        This species is accepted, and its native range is Tanzania, Madagascar.

    [FTEA]

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

    Type
    Type: Tanzania, Kilimanjaro, 3000 m, anno 1906, Daubenberger s.n. (B!, holo., fragment; P!, iso.)
    Habit
    Terrestrial or low epiphyte.
    Rhizomes
    Rhizome creeping, 3–8 mm diameter, with dense dark brown appressed shiny narrowly triangular attenuate scales to 4 × 0.4–0.9 mm long, margin narrow and paler.
    Leaves
    Fronds well-spaced; stipe erect, dark brown to black, 20–58 cm long, sulcate in upper part, when young covered with scales as on rhizome, but soon glabrescent.
    Leaf lamina
    Lamina dull or dark green, herbaceous to subcoriaceous, ovatelanceolate, 23–45 × 10–23 cm, 3-pinnatifid to 3-pinnatisect,
    Pinnae
    Lowermost pinnae pendent and hardly reduced, upper pinnae gradually decrescent. Pinnae 12–20 pairs, stalked, alternate, to 11 × 6 cm, acroscopic base ± parallel to rachis, basiscopic base cuneate, apex attenuate.
    Pinnules
    Pinnules in 5–8 pairs, asymmetrically lanceolate, to 3 × 1 cm, most pinnules pinnatisect; with ultimate segments to 2 mm wide, uppermost pinnules with dentate margin; with scattered pale brown clathrate narrowly ovate attenuate scales to 1.5 mm with entire margin.
    Rachis
    Rachis and costa with scattered pale brown clathrate narrowly ovate attenuate scales to 3 mm with entire margin.
    Sori
    Sori several per pinnule, 1–2 per lobe, linear, 3–5.5 mm long.
    Indusium
    Indusium membranous, entire, to 0.3 mm wide.
    Figures
    Fig. 8: 12–14, p. 47.
    Ecology
    Upper moist forest zone, bamboo zone, Hagenia zone and heath zone; terrestrial especially on logs, moss tufts, steep banks, or low epiphyte; may be locally common; 2400–3100 m
    Conservation
    Fairly widespread with a wide habitat and altitude range; Least Concern (LC)
    Note
    A specimen from Kenya, K 6, Chyulu Hills, May 1938, H.D. van Someren 79! looks like it might be this taxon but lacks both rhizome and stipe. The type, a fragment at B, has a few minute capitate glands on the rachis. Hemp 1420 from Kilimanjaro is similar (though sterile); this has a few glands on the lower surface of the lamina as well. No other collections seem to have these capitate glands.
    Distribution
    Flora districts: U2 K4 T2 Range: Not known elsewhere

    Distribution

    Native to:

    Madagascar, Tanzania

    Asplenium praegracile Rosenst. appears in other Kew resources:

    First published in Repert. Spec. Nov. Regni Veg. 6: 177 (1908)

    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: 30 (1994).
    • Johns, Pterid. trop. East Africa checklist: 66 (1991)
    • F.R. 6: 177 (1908)

    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