Ulva lactuca ,Ulva rigida,Ulva compressa,Monostroma nitidum

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Ulva compressa

Compressed, eloated, hollow fronds with a green colour.

Location/common name:- A kind of Sea Lettuce a compressed tube-like green alga entéromorphe flat green nori

Rock pools and sandy rocks, particularly in places with widely varyi salinities such as upper-shore pools (below). Extremely tolderant to widely varyi salinities and temperatures. Bubbles of oxygen (from photosynthesis) often apparent in the tubular fronds. Common through Britain and Ireland, and seemily world-wide. lower mid-littoral


d in cooki, particularly with hens' eggs.

Ulva rigida

Thallus sheet-like, emerald green, stiff at the base and more delicate near the growi edges, to 300 lo, sometimes with irregular elliptical holes (above). Persists throughout the year. emerald green colour and stiffness of thallus; however, this and other species of emUlva /emin the NE Atlantic require expert identification, and even then there is much dispute as to the status of the various species that have been reported includi ema href= Ulva_lactuca.php U. lactuca/a, U. gigantea, U. scandinavica, /emandem U. armoricana/em.

Location/common name:- Sea Lettuce ulve rigide

on rock and growi as an epipthyte, often developi "green tides" Common and widely distributed. lower mid-littoral