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Order Ulvales

Family Ulvellaceae

Thallus minute, comprising only prostrate filaments. Reproductive cells produced in barely modified vegetative cells.

Acrochaete sp.

Plants uniseriate, filamentous, prostrate, creeping in the cell walls of other algae. Filaments irregularly branched, cells ca. 10 µm long. Cells with parietal reticulate chloroplast. It is not clear whether this is the same Acrochaete sp. indet. described by Stegenga et al. (1997) from the west coast .

Collections, ecology and regional distribution

Endophytic in the cell walls of larger algae (e.g. Chaetomorpha aerea). Recorded from False Bay to Morgan Bay (17-43) but may be more widespread.

 


Acrochaete sp. on Chaetomorpha aerea (microscope slide EC 2119).


Acrochaete sp. on Chaetomorpha aerea (microscope slide EC 2119), general appearance.


Acrochaete sp as recorded on the South African west coast by Stegenga et al. (1997). It is not clear if this is the same species recorded on the south coast. 1-2, showing microscopic habit in cell walls of Bornetia repens and Anotrichium tenue, respectively, in fig. 2 with sporangia. 

 

 

Reference Acrochaete

Stegenga, H., Bolton, J.J. and R. J. Anderson. 1997. Seaweeds of the South African west coast. Contributions from the Bolus Herbarium 18: 655 pp.

 

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 18 September 2018.