1. Family: Aspleniaceae Newman
    1. Genus: Asplenium L.
      1. Asplenium paucijugum F.Ballard

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

    [FTEA]

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

    Type
    Type: Tanzania, Lushoto District: Gonja, Holst 4246 (K!, holo.)
    Habit
    Terrestrial, low epiphyte or on rocks.
    Rhizomes
    Rhizome creeping or erect, 3–6 mm diameter, with pale brown or dark brown ovate acuminate clathrate deciduous scales 2–4 mm long, the margins of the scales entire or sometimes (on same plant) with a few narrow teeth.
    Leaves
    Fronds shortly spaced or tufted, erect, 20–60 cm long, entire or more often 1-pinnate, often proliferous at or near apex, occasionally proliferous at several pinnae apices.
    Stipes
    Stipe pale brown or green, once described as black with pale lines, 5–44 cm long, with scales similar to those of rhizome but soon glabrescent.
    Leaf lamina
    Lamina dark green, slightly coriaceous, simple or imparipinnate with 1–2 pairs of (sub)sessile subopposite pinnae (rarely one of the pinnae with a single sub-pinna), the pinnae or lamina oblong-elliptic to lanceolate, 4–22 × 1.5–6.5 cm, the terminal pinna slightly larger than the laterals, base slightly cordate to cuneate, margin sinuate to crenate-serrate, apex acuminate with acumen up to 2 cm long, glabrous.
    Leaf veins
    Veins forked.
    Rachis
    Rachis similar to stipe.
    Sori
    Sori many, evenly spaced and closely parallel along the oblique veins, reaching neither costa nor margin, 7–29 mm long.
    Indusium
    Indusium membranous, linear, ± 0.3 mm wide, entire or with minutely fimbriate margin.
    Figures
    Fig. 1: 9–10, p. 9.
    Ecology
    Moist forest, often along streams and falls; may be locally common; 600–1700 m
    Conservation
    Widespread; least concern (LC)
    Note
    Ballard in his protologue states that this taxon is “not so homogeneous a species as one might wish; (...) certain differences in rhizome scales lead one to wonder whether some of the plants may possibly represent juvenile states of other well-known species”. The Ugandan specimens have longer rhizome scales than the more Eastern ones; I suspect there might be a Western taxon and an Eastern one. A. paucijugum Ballard var. simplex Kunkel (1962) is a name I have been unable to trace. It might be a manuscript name.
    Distribution
    Range: Madagascar Flora districts: U2 U4 K7 T 1?, T3 T6 T7 Range: West Africa from Guinea to Ghana, Sao Tomé

    Images

    Distribution

    Native to:

    Angola, Cameroon, Central African Repu, Equatorial Guinea, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Madagascar, Sierra Leone, Tanzania, Uganda, Zaïre

    Asplenium paucijugum F.Ballard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 1, 2010 Fay Louis [4838], Cameroon K000338374
    Oct 1, 2010 Fay Louis [4838], Cameroon K000338375
    Jul 1, 2007 Tchiengue, B. [2217], Cameroon K000436938
    Aug 1, 2001 Cheek, M. [9523], Cameroon K000108906
    Aug 1, 2001 Cable, S. [3798], Cameroon K000108908
    Aug 1, 2001 Cable, S. [3366], Cameroon K000108909
    Aug 1, 2001 Etuge, M. [2152], Cameroon K000108907
    Aug 1, 2001 Etuge, M. [2085], Cameroon K000108911
    Aug 1, 2001 Etuge, M. [1363], Cameroon K000108920
    Aug 1, 2001 Etuge, M. [4085], Cameroon K000108923
    Aug 1, 2001 Ryan, P. [384], Cameroon K000108912
    Aug 1, 2001 Mackinder, B. [304], Cameroon K000108922
    Jul 1, 2001 Etuge, M. [2479], Cameroon K000108913
    Jan 1, 2001 Groves, M. [169], Cameroon K000108910
    Jan 1, 2001 Groves, M. [177], Cameroon K000108921
    May 24, 1935 Holst, C. [4246], Tanzania K000423902 Unknown type material
    Budjoe, P. [GC3829], Ghana Asplenium akimense K000423918 Unknown type material

    First published in Hooker's Icon. Pl. 33: t. 3287 (1935)

    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
    • Fern Gaz. 14, 6: 202 (1993).
    • Johns, Pterid. trop. East Africa checklist: 66 (1991)
    • Hook. Icon. Pl. ser. 5. 3: t. 3287 (1935)

    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