Asplenium protensum Schrad.
  • Gött. Gel. Anz.


Cite taxon page as 'WFO (2020): Asplenium protensum Schrad. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001108070. Accessed on: 05 Apr 2020'

Morphology

Rhizome ascending, set with dark brown rhizome scales. Fronds gemmiferous. Proliferating bud borne on rhachis on or below terminal segment. Rhachis pubescent below. Lamina up to 650 x 130 mm. Pinnae shallowly pinnatifid; lobes usually 2- or 3-fid. Sori borne between costa and lobes.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 7
    • ]. 

    Perennial with suberect rhizome. Fronds to 1.1 m, arching, proliferous on rachis near lamina apex, stipe with scales and short hairs, lamina herbaceous, narrowly elliptic, 1-pinnate to 2-pinnatifid, pinnae to 6.5 cm long, with up to 55 pinna pairs, inaequilaterally narrowly trullate to lanceolate, to 5.3 cm long, pinnatifid into linear lobes, upper surface densely hirsute along costa, sparsely hirsute along veins, lower surface with scales and few-celled hairs along the costa, veins and often also between veins, rachis with short hairs. Sori linear, indusium entire, to 4 mm long.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Rhizome ascending, up to 5 mm in diameter, set with appressed, dark brown, narrowly ovate-deltate, pseudoserrate rhizome-scales up to 2 mm long with paler borders. Fronds closely spaced, herbaceous, gemmiferous; stipe dark brown, densely scaly at first with appressed scales of different sizes, also with hairs; lamina very narrowly elliptic to ovate-lanceolate, up to 650 x 130 mm, pinnate to shallowly 2-pinnatifid, lower pinnae decrescent; pinnae in up to 55 pairs, base unequally cuneate, shallowly pinnatifid into linear-oblong, acute, usually 2- or 3-fid lobes or broadly cuneate and deeply incised lobes, set with minute, pale, hair-like scales below and along costa above; rhachis winged for most of its length, densely pubescent dorsally with pale hairs, and set with occasional ovate scales. Sori borne between costa and lobes, on outermost branch-vein supplying lobes, up to 8 mm long; indusium linear, membranous, entire, c. 0.4 mm broad.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Ecology

    Epiphytic or rarely terrestrial, in montane forest; 5, 600–8, 000 ft. alt.

  • Provided by: [C].Plants Of the World Online Portal - FWTA
    • Source: [
    • 1
    • ]. 

    Habitat

    A lithophyte on mossy boulders in deep shade in forest.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 7
    • ]. 

    Mossy boulders in forests, mostly near streams, 100-600 m.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Lithophyte on mossy boulders in deep shade in forest, 650-2000 m.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Distribution

    George to W Africa and Madagascar.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Cape Province, Transkei, Natal, Transvaal, Zimbabwe, Mozambique, Malawi, Zambia, Angola, Zaire, Burundi, Tanzania, Kenya, Ethiopia, Sudan, Cameroun, Nigeria, Fernando Po, Madagascar, Mauritius.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

      Bibliography

    • 1 Aspleniaceae, A. H. G. Alston. Flora of West Tropical Africa. Ferns and Fern-Allies Supplement. 1959
    • 2 "Tard. in Mém. I.F.A.N. 28 : 183, t. 38, fig. 5, 6 (1953)."
    • 3 "Sim F.S.A. 149, t. 51 (1915)"
    • 4 Hook. Syn. Fil. 211 (1867)
    • 5 in Gött. gel. Anz. 1818 : 916
    • 6 Gött. Gel. Anz.
    • 7 Herman, PPJ; Retief, E. 1997. Plants of thenorthern provinces of South Africa: keys and diagnostic characters. Strelitzia 6: 1 - 681. National Botanical Institute, Pretoria.
    • 8 Roux, JP. 2012. Pteridophytes. 31 - 47. South African National Biodiversity Institute, Pretoria.
    • 9 Schelpe, EACLE; Anthony, NC. 1986. Pteridophyta. In: O.A. Leistner (ed.). Fl. S. Africa : 1 - 278.

     Information From

    Aspleniaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • B All Rights Reserved
    Plants Of the World Online Portal - FWTA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • C The Trustees of the Royal Botanic Gardens, Kew
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).