Seaweeds of the South African South Coast

 

 

 

 

 

 

 

 

 

 

 

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Order Ceramiales

Family Rhodomelaceae

Polysiphonia sp 4

Description based on a single slide specimen: Plants with creeping base ca. 200 µm wide, upright axes to ca. 13 mm tall and ca. 160 µm wide near the middle; four pericentral cells. Segments in erect axes 1.5-2.5 times as long as broad. Apices with trichoblasts; unbranched when arising close to tip, developing single fork slightly lower down the thallus.

Only female plant seen. Carposporangia ca. 270 µm long and 350 µm wide, carpospores clavate, ca. 75 µm long.

Collections, ecology and regional distribution

Known only from a single collection at Bird Island, Algoa Bay (38).

 

Polysiphonia sp. 4. Whole mount of female thallus (stained slide: no. 1967).

Polysiphonia sp. 4. Detail of female thallus (stained slide).

 

 

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 19 December 2024.