Selaginella - Selaginellaceae

Selaginella vogelii Spring

Photo: C. Jongkind
Liberia

Photo: C. Jongkind
Liberia

 

 

 

 

Synonyms

Selaginella dinklageana Sadeb.
Selaginella africana A.Braun.

Common name

Description

Rhizophores limited to the basal, prone part of the stem, up to 3 cm long, finely pubescent, dark streaked, ventral, most at right angles to the rhizome. Rhizome creeping, with erect stems, spaced about 2 cm apart, pink, subtetragonal, leafy, up to 25 cm long sometimes dichotomous. Stems erect up to 50 cm long, shorter than rhizome, up to 3 mm in diameter, usually pink when dry, rounded, subglabrous, sometimes rooting at the top; branches pubescent, forming an angle of 45 °, triangular or deltoid outline, tripinnate, the basal pair of branches subopposed. Leaves homomorphic on the single part of the main stem. Leaves from the main stem distant, often more than 1 cm apart, symmetrical, ovate-deltoid, slightly auriculate at the base; lateral leaves spaced, 3.5 x 1.25 mm, often rolled up when dry, apex rounded, upper half of leaf semi-oval, entire, lower half narrowly oblong, serrulate at base, costa not reaching the top; axillary leaves as long as the lateral ones, entire, elliptic, apex rounded; median leaves spaced apart on the main stem and sometimes subopposed, regularly attenuated and imbricated on the ultimate ramifications, ovate, falcate, ciliolate on the inner face, entire on the outer face, acuminate, not awned, outer face long decurrent. Strobili solitary at the tips of the twigs, about 0.5 cm long by 1.75 mm in diameter, paler green than the leaves; sporophylls homomorphic, ovate-deltoid, acuminate, acute, with two short quadrangular auricles at the base, loosely ciliolate.

Notes

According to Roux (2009) also in Kenya and Tanzania but not mentioned in Flora Tropical East Africa.

Derivation

vogelii: type was collected by Julius Rudolph Theodor Vogel (1812-1841), German traveller, explorer, botanist and plant collector, and co-director of the Botanical Gardens of Bonn.

Habitat

Distribution worldwide

Africa, introduced in Brazil Southeast, Sri Lanka.

Distribution in Africa

Angola, Benin, Cameroon, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sierra Leone.

Growth form

Terrestrial.

Literature

  • Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, South African National Biodiversity Institute, Pretoria. Pages 28 - 29.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3. Flore du Cameroun, Pages 24 - 27.
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8. Flore du Gabon, Pages 18 - 19.
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