1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium elliottii C.H.Wright

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

    [FTEA]

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

    Type
    Type: Kenya, Aberdare range at ± 2800 m, C.F. Elliott s.n. (K!, holo.)
    Habit
    Terrestrial or less often a low-level epiphyte, often gregarious, 30–140 cm high.
    Rhizomes
    Rhizome erect (very rarely shortly creeping), to 8 mm diameter, with concolorous ovate scales 4–10 × 2.5–4 mm.
    Stipes
    Stipe straw-colored, 11–30(–80) cm long, thin, glabrous or with sparse subulate clathrate scales to 4 mm long with widened base and occasionally with very thin side-lobes.
    Leaves
    Fronds tufted.
    Leaf lamina
    Lamina dark green, lanceolate, 24–60(–100+) × 10–22 cm, 1-pinnate, the lowermost pinnae slightly smaller, decrescent towards the apex, proliferous near apex.
    Pinnae
    Pinna in 14–30 pairs, opposite or alternate, rhomboid or narrowly lanceolate, (3–)5–16(–22) × (1.3–)1.6–3.3 cm, base truncate and parallel to rachis on the acroscopic side, oblique on the basiscopic side, minutely crenate-serrate, acuminate.
    Leaf veins
    Veins forked once; glabrous or occasionally with sparse scattered scales; petiolule 1–4 mm long.
    Rachis
    Rachis slightly winged in the distal part, with sparse subulate scales to 3.5 mm long with widened base and occasionally with very thin side-lobes.
    Sori
    Sori many, from near costa to halfway towards the margin, brown or red-brown, linear to elliptic, 3–4.5(–8) mm long.
    Indusium
    Indusium pale, entire, 0.5–1(–1.3) mm wide. Fig. 3: 5, p. 19.
    Ecology
    In moist montane forest, extending up into the bamboo zone; may be locally common to abundant; 1050–2800 m
    Conservation
    Widespread; least concern (LC)
    Note
    The name A. pseudoplumosum Hiern, under which several specimens were laid in at Berlin, was never published. Several specimens from K 7, Shimba Hills, Mar. 1941, H.D. van Someren 125!, 151! and 168! are probably this taxon, but lack rhizomes. This would be at much lower altitude than other specimens, though the labels lack altitude data. A specimen from Uganda, Ruwenzori, Mobuku valley, Dec. 1938, Loveridge 291! looks very much like this taxon; but is strikingly different from all other East and central African Asplenium species I have seen in that many a pinna has on the upper surface, in the middle of the costa, a gemma with growing plantlet. Most details are lacking: the specimen I have seen consists of a 33 cm part of rachis with 9 pairs of what looks like upper-middle pinnae. The fern is said to be 2 m high – unknown whether creeping or tufted. Presumably 1-pinnate, the pinnae 9 or more (presumably many more) on each side of the rachis; pinnae lanceolate, to 15 × 2.6 cm, shortly stalked, acroscopic base parallel to the rachis and almost with an enlarged lobe, basiscopic base cuneate, margin crenate, apex acuminate, glabrous or nearly so. Rachis with very sparse filiform scales to 2 mm long. Sori many, restricted to the lower half of the pinna, at a 45° angle to the costa and slightly nearer the costa than the margin, linear, 3–5 mm long, straight; indusium translucent, to 1 mm wide, entire.
    Distribution
    Range: Congo-Kinshasa, Rwanda, Burundi Flora districts: U2 U3 K3 K4 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7

    Images

    Distribution

    Native to:

    Burundi, Kenya, Rwanda, Tanzania, Uganda, Zaïre

    Asplenium elliottii C.H.Wright appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2005 Holst, C. [2491], Tanzania K000423895
    Elliott, C.F. [s.n.], Kenya K000423896 holotype
    Kamau [592], Kenya K000696559

    First published in Bull. Misc. Inform. Kew 1908: 262 (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: 28, t. 172 (1994).
    • Fern Gaz. 14, 6: 200 (1993)
    • Johns, Pterid. trop. East Africa checklist: 63 (1991)
    • K.B. 1908: 262 (1908)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East 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