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Where water finds a backwater in the riu de les Corces, and on its clean mirror reflects the sky and the carved rock steps in which the forests grow perched. There, beneath these crystal waters, in their pure bed, discreetly grows veiled tassels of green, opening beneath the magical window of the microscope as impenetrable jungles, are Spirogyra stems.

tangled jungle of green silk stalks plays with the light in its reflections, and turns the spirals that give life and the name to these algae into clumps of gold. Although the Sirogonium and Spirogyra threads are now curled in golden flashes, they are green algae with intense green and smoothly woven chloroplasts.

in the first and more tightly in the second, but always in the form of tape.

In all of them, these tapered chloroplasts are rolled up in a perfect spiral, glued to the wall of the cylindrical, elongated cells that contain them. In addition to the chlorophyll that forms these chloroplasts stranded on irregularly serrated edge ribbons, the protein granules Spirogyra is making accumulate in these golden lumps, which are the pyrenoids, loaded with reserve substances.

Spirogyra stems grow, they always do in length, because they never branch out. Frequently, and especially in calm waters or in the backwaters of creeks and streams, they may appear as floating filaments, which together with others form dense green and silky tangles that appear as islets on the surface of the water. On other occasions, as in this case, if they grow from the bottom, they can form at the base of each filament very fine extensions that resemble delicate rootlets, but which serve only to anchor its long body and prevent it from being carried along by the current. p>


Today, two very close genera have appeared in the sample of these clean waters of the riu de les Corces one with only one chloroplast, Spirogyra and another with seven Sirogonium . < The particular spiral arrangement of chloroplasts is of great beauty, especially when several are combined and in their twists they draw aquatic braids full of harmony and life, but besides beauty it has a great functionality, because regardless of the position in which the filament is placed horizontally, will always receive the same amount of light, even if it turns.

Spirogyra can live in abrupt torrents or in peaceful lagoons, streams, lakes, small puddles ... where there is a little water, the Spirogyra seaweed filaments can grow and form intricate jungles, where in its shelter, the life of many other beings is developed.

Sirogonium is a very special and elusive seaweed that only occurs in areas of water where there is no trace of pollution, as in this remote paradise. p> Today in the interior of each Spirogyra filament shines like the gold of the Sun the fruit of its work, the life in its green spirals that in almost invisible veil are twined painting these clean rivers that still are a paradise

In their long and bumpy journey on the riu de les Corces, the jungles of Spirogyra have found a haven of peace next to the ruins of the ancient bridge that a day of waters enraged the riada was taken near Vallibona, there they are under another beautiful forest and there we found them during the celebration of VIII Testing of Els Ports

Thank you from heart for these unforgettable days to all with whom we have been fortunate to share these days, to Jacint Cerdà, to all the friends of BV and to the City council of Vallibona.

  • Adam Floyd