Blue Ecosystems יעוץ סביבתי, בהנהלת ד"ר רחלי עינב - Ulva (Enteromorpha) flexuosa (Wulfen) J. Agardh


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Rhodophyta | Chlorophyta | Rhodophyta
Ulva (Enteromorpha) flexuosa (Wulfen) J. Agardh 

Chlorophyta, Order: Ulvales; Family: Ulvaceae. Current accepted name: Ulva flexuosa Wulfen.
The scientific name of the Ulva (Enteromorpha) genus refers to the tubular shape of the thallus, which resembles an intestine. Flexuosa refers to the branching out from the male axis and means: bending alternately to the right and to the left, like the passage of a snake.
The Ulva (Enteromorpha) flexuosa has a tubular thallus with microscopic manifold branching. Often, the branching contains only a single row of cells. An overview shows cells arranged in vertical rows and usually also in lateral rows. The cells are either square or rectangular. The chloroplast is dented. Pyrenoids 1-2.
Literature describes individuals up to 60 cm in length. Ulva (Enteromorpha) flexuosa -the thallus is characterized by manifold branchings of single-line celled branches.
The color of Ulva (Enteromorpha) flexuosa ranges between yellowish-green and greenish-blue.
Special features
The dense manifold branching and the cellular arrangement in lateral and vertical rows are unique.
Due to the difficulty of defining the species, there is no detailed information. Around the world, it is reported in shallow waters and exposed areas.
Biology and reproduction
As in Ulva
Seasonality and distribution
The general distribution of the species is more or less universal.
Additional species
The Ulva (Enteromorpha) flexuosa is a very variable species; at least six subspecies (variants) are known.

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