Selaginella - Selaginellaceae

Selaginella myosurus (Sw.) Alston

Photo: BT. Wursten
Dem. Republic of Congo

Photo: BT. Wursten
Dem. Republic of Congo

Photo: BT. Wursten
Dem. Republic of Congo

Photo: BT. Wursten
Dem. Republic of Congo

Photo: BT. Wursten
Dem. Republic of Congo

Photo: BT. Wursten
Dem. Republic of Congo

Photo: C. Jongkind
Liberia

Photo: C. Jongkind
Liberia

 

 

 

 

Synonyms

Lycopodium myosurus Sw.
Stachygynandrum scandens P.Beauv.
Selaginella scandens (P.Beauv.) Spring
Lycopodioides scandens (P.Beauv.) Kuntze

Common name

Description

Rhizophores 30 cm long by 0.75 mm in diameter, streaked or buff when dry, glabrous, abruptly deflected; ventral rhizophores with a short papilla. Stems not articulated, climbing; lateral branches c. 12 x 4 cm, pinnate, with lateral leaves spaced on the main axis and overlapping on the ultimate branches; ultimate ramifications about 2 x 7 cm (leaves included). Leaves homomorphic on main stem, heteromorphic elsewhere. Main stem leaves c. 3 mm long, spaced 1 cm apart, ovate, apex tapering, base subulate, margin subentire, with two broad acute auricles at base; lateral leaves of the main branches unequal, the upper side semi-lanceolate, base rounded. Ultimate branches lateral leaves 3 x 1 cm, slightly falciform, apex mucronate-acruminate, unequal, margins with 1-3 rows of elongated cells, midrib raised on the upper side, not quite reaching the top; axillary leaves ovate, acute, denticulate, with or without short auricles; median leaves ovate-lanceolate, with a blade about 1 mm long, denticulate, acuminate, long awned, the awn about half the length of the blade. Strobili solitary at the end of the final branches, usually about 1 cm long by 2 mm in diameter; sporophylls homomorphic (except those with megasporangia, which are slightly larger), ovate-deltoid, long-acuminate-awned, serrulate, articulated.

Notes

Derivation

Habitat

On the edge of shrubby forest.

Distribution worldwide

See African distribution.

Distribution in Africa

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

Growth form

Climbing, 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. Page 25.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3. Flore du Cameroun, Pages 23 - 24. (Includes a picture).
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8. Flore du Gabon, Pages 13 - 14. (Includes a picture).
  • Verdcourt, B. (2005) Selaginellaceae. Flora of Tropical East Africa, Page 2. Footnote that this taxa does not occur wild in E Africa
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