| Polysiphonia simulans | |
|---|---|
| |
| Illustration of Polysiphonia simulans. Fig. 1. natural size. 2. A small branch. 3. Ceramidium. 4. Ramulus with imbedded tetraspores. 5. Joints from the stem, and young ramulus with apical fibres. 6. Transverse section of the stem : — all magnified. | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Rhodomelaceae |
| Genus: | Polysiphonia |
| Species: | P. simulans
|
| Binomial name | |
| Polysiphonia simulans Harvey
| |
Polysiphonia simulans is a small marine alga in the division Rhodophyta.
Description
This small alga is no more than 8 cm long. It appears as a tuft of irregularly branched erect axes. The branches show 10 periaxial cells forming a collar around a central axis without cortication. The pericentral cells are all of the same length. Rhizoids are attached to the lower periaxial cells.1
Reproduction
Tetraspores have been recorded in the final branches.
Distribution
Recorded from the south coast of England, Ireland and the Channel Islands. Also recorded from north-west France.12 Occurs southwards to Morocco.3
References
References
- Maggs, C.A. and Hommersand, M.H. 1993. Seaweeds of the British Isles Volume 1 Rhodophyta Part 3A Ceramiales. The Natural History Museum. ISBN 0-11-310045-0
- Morton, O. 2003. The marine macroalgae of County Donegal, Ireland. Bulletin of Irish biogeographical Society no.27 3 - 164.
- Hardy, F.G. and Guiry, M.D.2003. A Check-list and Atlas of the Seaweeds of Britain and Ireland. The British Phycological Society ISBN 0-9527115-16