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Order Ceramiales

Family Delesseriaceae

Genus Apoglossum

Thalli small, delicate, comprising stipitate blades with branching from the midrib; tetrasporangia in sori on blades. Growth from single apical cell, blades of one cell layer except at midrib. Seven species are currently recognized worldwide (Guiry & Guiry 2013), of which two are found on the south coast. See Wynne (1984) for a discussion of South African Apoglossum species.

Key to species

 

1a. Thalli up to 25 mm tall, blades to 5 mm wide, tetraporangial sori linear, parallel and adjacent to midrib

Apoglossum ruscifolium

1b. Thalli up to ca 12 mm tall, blades to 1.8 mm wide, tetrasporangial sori circular, distal on blades

Apoglossum spathulatum

 

Referencess Apoglossum

Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched September 2013.

Wynne, M.J. 1984. The occurrence of Apoglossum and Delesseria (Ceramiales, Rhodophyta) in South Africa. South African Journal of Botany 3: 137-145.

 

Cite this record as:

Anderson RJ, Stegenga H, Bolton JJ. 2016. Seaweeds of the South African South Coast.
World Wide Web electronic publication, University of Cape Town, http://southafrseaweeds.uct.ac.za; Accessed on 20 September 2018.