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Zonaria (alga)
''Zonaria'' is a genus of thalloid brown alga comprising approximately 12 species. Specimens can reach around 25 cm in size, all of which exhibit a characteristic semi-circular growth pattern which produces distinct alternating patterns of darker and lighter tissue akin to tree rings. ''Zonaria'' produces tetraspores. ''Zonaria'' is widespread with some species being locally abundant upon shallow subtidal of rock reefs. The species currently recognised are: The three ''Zonaria'' Australian species ''Z. turneriana'', ''Z. crenata'' and ''Z. angustata'' produce phloroglucinol derivatives. References * External links Imagesof ''Zonaria'' at Algaebase AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael Guiry. Text was copied from this source, which is avai ... Dictyotaceae Brown algae genera {{Phaeophyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalloid
Thallus (plural: thalli), from Latinized Ancient Greek, Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some Marchantiophyta, liverworts, lichens, and the Myxogastria. Many of these organisms were previously known as the thallophytes, a polyphyly, polyphyletic group of distantly related organisms. An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose. A thallus usually names the entire body of a multicellular non-moving organism in which there is no organization of the tissue (biology), tissues into organ (anatomy), organs. Even though thalli do not have organized and distinct parts (leaf, leaves, roots, and Plant stem, stems) as do the vascular plants, they may have Analogy (biology), analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microsc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
