Division Rhodophyta Scientific name Phymatolithon Rank Genus | Order Corallinales Higher classification Hapalidiaceae | |
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Similar Coral Strands, Coralline algae, Red algae, Lithothamnion, Lithophyllum |
Phymatolithon is a genus of nongeniculate coralline red alga, known from the UK. and Australia It is encrusting, flat, and unbranched; it has tetrasporangia and bisporangia borne in multiporate conceptacles. Some of its cells bear small holes in the middle; this distinctive thallus texture is termed a "Leptophytum-type" thallus surface, and has been posited as a taxonomically informative character. It periodically sloughs off its epithallus, reducing its overgrowth by algae by as much as 50% compared to bare rock.






References
Phymatolithon Wikipedia(Text) CC BY-SA