Pseudofilamentous desmids (Zygnematophyceae) from an Amazonian floodplain lake (Macapá, AP, Brazil)

Some interesting desmids (Desmidiaceae, Zygnematophyceae): first records, taxonomic notes, and distribution for the Amazon Brazilian flora

“…According to the Flora do Brazil (Flora e Funga do Brasil 2022) database, the microalgae flora of Amapá comprises just 18 taxa belonging to the two genera Staura strum and Staurodesmus. Although there are still few studies and information is lacking on the microalgal flora of this state, other genera have been reported from aquatic ecosystems in Amapá, including Closteri um and Euastrum (Förster 1963), Desmidium (Förster 1963;Araújo et al 2020), some other pseudofilamentous genera (Araújo et al 2020), andXanthidium (Souza andMelo 2011).…”

“…According to the Köppen climate classification, the dominant climate is Am (Tropical monsoon climate) (Alvares et al 2013). The hydrological cycle is well defined, and there is seasonality and local rainfall; thus, there is a less-rainy period from July to December and a rainy or flood period from January to June (Araújo et al 2020).…”

“…Only about half a century later, the second taxonomic study was published by Souza and Melo (2011), who identified and illustrated 35 species and three varieties of Desmidiaceae-in the genera Staurastrum Meyen ex Ralfs, Staurodesmus Teiling, and Xanthidium Ehrenberg ex Ralfs-from Lake Novo, in coastal Amapá. Most recently, Araújo et al (2020) published the third paper, this time on the pseudofilamentous desmids and including the descriptions and illustrations of 21 taxa.…”

“…Only since the 1980s have the main contributors been Brazilian, such as Martins (1980Martins ( , 1982Martins ( , 1986aMartins ( , 1986b, Bittencourt-Oliveira (1990, 1993a, 1993b, Lopes (1992), Suarez-Mera (1995), Sophia and Huszar (1996), Ibañez (1998), Lopes and Bicudo (2003), Martins-da-Silva and Bicudo (2007), Souza et al (2007), Souza (2008Souza ( , 2012, Melo and Souza (2009), and Melo (2010, 2011). The most recent Brazilian researchers are Holanda et al (2019), Araújo et al (2020), and Saturnino et al (2020).…”

Você conhece a nomenclatura biológica? Aprenda a forma correta de escrever os nomes dos organismos

“…2022) e Algae Base(Guiry;Guiry, 2022) esclarecem sobre os descritores dos referidos grupos taxonômicos:Uromyces amapaensis Sotão & Piovezan, 2021(Oliveira et al, 2021) [Fungo] Bambusina borreri (Ralfs) Cleve var. majus C.B.Araújo, C.E.M.Bicudo & S.Melo(Araújo et al, 2021) [Alga] (b) Código Internacional de Nomenclatura para Plantas Cultivadas(BRICKELL et al 2016) Para se entender o funcionamento do ICNCP é importante conhecer o conceito da terminologia cultivar. De acordo com art.…”