Struvea

Struvea is a genus of green algae belonging to the family Anadyomenaceae. These algae are characterized by their blade-like or net-like thallus, composed of filaments that anastomose to form a distinctive structure. They are typically found in tropical and subtropical marine environments, often attached to rocks, coral reefs, or other submerged substrates in shallow waters.

The thallus of Struvea species is usually bright green and can vary in size depending on the species and environmental conditions. The overall morphology is characterized by a stipe, a stalk-like base, which supports the reticulate or blade-like photosynthetic portion. The reticulations (net-like structure) are formed by the interconnection of filaments.

Struvea algae reproduce through both asexual and sexual means. Asexual reproduction can occur through fragmentation or the formation of zoospores. Sexual reproduction involves the fusion of gametes.

The classification of Struvea species can be complex, with various species recognized based on morphological characteristics such as the size and shape of the thallus, the arrangement of filaments, and the habitat in which they are found. The taxonomy of the genus has been subject to revision with the advent of molecular phylogenetic studies.

Struvea algae play a role in marine ecosystems by contributing to primary production and providing habitat for small invertebrates. Some species are also used in traditional medicine or as a food source in certain cultures. The genus serves as an example of morphological adaptation to marine environments, showcasing the convergent evolution of net-like thalli in different lineages of green algae.