Blechnum tabulare (Thunb.) Kuhn
Synonyms |
Pteris tabularis Thunb. |
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Common name |
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Description |
Rhizome erect, sometimes forming a caudex of up to 100 x 8-30 cm; rhizome scales brown with dark central stripe and paler margin, linear-lanceolte in outline, 15-50 mm long, margin entire. Fronds dimorphic, in whorls, texture leathery. Stipe 10-30(-60)cm, longer in fertile than in sterile fronds, strawcoloured, glabrous but with a few scales at the base. Sterile lamina 40-140 × 3-35 cm, pinnate, elliptic-oblanceolate in outline with a series of reduced pinnae at the base, the lowermost pinnae rudimentary; pinnae 4-20 x 1-2 cm, linear to oblong, base unequal, free or joined on the basiscopic margin to the rhachis, margins entire, glabrous above, with hair-like scales set along the costa below. Fertile lamina smaller or the same size as the sterile lamina; pinnae linear, joined directly onto the rhachis, pinnae standing at an acute angle to the rhachis and sometimes strongly inrolled. Sori linear, extending the whole length of the pinnae; indusium continuous, lacerate, 0.5-2 mm wide. |
Notes | Differs from similar species by its stiff habit and leathery texture; it also has pinnae with an unequally shaped base. |
Derivation | tabulare: Mont tabularis in Latin, this fern was first collected on Table Mountain, Cape Town. |
Habitat | Montane grassland along streams or rocky outcrops, along the margins of evergreen forest, bamboo forest, disturbed forest, peat bogs & swamps, rather humid and open sites. |
Distribution worldwide | Africa, Madagascar and Mascarene Islands. |
Distribution in Africa |
Angola, Burundi, Cameroon, Dem. Republic of Congo, Kenya, Malawi, Mozambique, Nigeria, Rwanda, South Africa, Swaziland, Tanzania , Uganda, Zambia, Zimbabwe. |
Growth form |
Terrestrial. |
Literature |
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