Lycopodiella - Lycopodiaceae

Lycopodiella caroliniana (L.) Pic.Serm.

Photo: JE. Burrows
Zimbabwe

Photo: JE. Burrows
Malawi

 

 

 

 

Synonyms

Lycopodiella affinis (Bory) Pic.Serm.
Lycopodium carolinianum L. var. affine (Bory) Schelpe
Lycopodium affine Bory
Lycopodium ericetorum Schrad.
Lycopodium tuberosum Welw. & A.Braun ex Kuhn
Lycopodiella caroliniana (L.) Pic.Serm. var. tuberosa (Welw. & A.Braun ex Kuhn) Verdc.
Lycopodium carolinianum L.

Common name

Description

Stem branched, creeping on the ground, rooting along its length, up to 6 mm in diameter, sometimes producing irregular pale yellowish tubers. Leaves slightly dimorphic, lanceolate to oblong or linear-lanceolate in outline, apex tapering to a point, often ± falcate; lateral leaves 0.5-1.5 x 0.1-0.4 mm, spreading horizontally, membranous, slightly larger than the dorsal leaves, dorsal leaves somewhat appressed to stem or curving erect. Strobili solitary, cilindrical, 15-95 × 6 mm, borne at the apex of an erect peduncle; peduncle 4-35 cm long, sparsely set with appressed, reduced leaves. Sporophylls 3.5-6 x 1.5-2 mm, yellowish, broadly ovate, tapering with a deflexed point, erose-denticulate. Sporangia 1-1.3 mm wide.

Notes

Can be distinguished from L. sarcocaulon by having membranous lateral leaves that are of similar size or slightly larger than dorsal leaves and lance-shaped to oblong in outline.

Derivation

caroliniana: the first specimen was collected in Carolina, United States.

Habitat

Marshy areas, papyrus swamps, perennial or seasonal seepage zones in grassland and on wet rocks next to perennial mountain streams.

Distribution worldwide

Africa, Madagascar, Mascarene Islands and north-eastern North America.

Distribution in Africa

Angola, Burkina Fasso, Burundi, Dem. Republic of Congo, Guinea, Ivory Coast, Liberia, Malawi, Mali, Mozambique, Nigeria, Sierra Leone, South Africa, Tanzania , Uganda, Zambia, Zimbabwe.

Growth form

Lithophytic, terrestrial.

Literature

  • Burrows, J.E. (1990) Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 19 - 20. (Includes a picture).
  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature. Pages 44 - 45. (Includes a picture).
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 133 - 134. (Includes a picture).
  • Kornas, J. (1979) Distribution and ecology of the Pteridophytes in Zambia. Polska Akademia Nauk Wydzial II Nauk Biologicznych. Pages 26 - 27.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report, 13 Pages 22 - 23.
  • 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 17.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Page 21.
  • Vercourt, B. (2005) Lycopodiaceae. Flora of Tropical East Africa, Pages 16 - 17. As Lycopodiella carolianum (L.) Pic.Serm. var. tuberosa (Kuhn) Verdc.
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