taxonID	type	description	language	source
03F2870E0345286EFF3DC28F977B29FF.taxon	description	Description: Cells as long as broad; semicells with divergent and step processes; the processes run towards the base out into parallel sides with three concentric rows of widely spaced granules, terminating in five small spines; apex visible and triradiate; sinus shallow and open; isthmus with a single or two rows of sharp granules; the ornamentation consists of fine thorns; vertical view triradiate; membrane hyaline. Cells 21 – 30 μm long (with processes), 15 – 20 μm (without processes), 14 – 18.5 μm wide (with processes), 7.0 – 9.5 μm (without processes), 5.0 – 6.5 μm isthmus width.	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
03F2870E0345286EFF3DC28F977B29FF.taxon	materials_examined	Holotype: Material numbered (SP 428487) [other organisms present], a formaldehyde-fixed sample deposited in the Herbário Científico do Estado ‘ Maria Eneyda P. Kauffmann Fidalgo – SP’, at the Instituto de Pesquisas Ambientais, São Paulo, São Paulo State, Brazil. Population partially illustrated here from light microscopy (Figs 1 – 4). Type locality: Brazil. São Paulo: Itirapina Municipality, a small pond covered by Sphagnum sp., located in the “ Reserva Experimental de Itirapina ”, Lat. 22 ° 13.836 ʹS, Long. 47 ° 49.165 ʹW, 22 May 2017, C. B. Araújo (SP 428487).	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
03F2870E0345286EFF3DC28F977B29FF.taxon	description	PhycoBank Registration: http: // phycobank. org / 103632	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
03F2870E0345286EFF3DC28F977B29FF.taxon	biology_ecology	Habitat: This new species was found in the study area associated to Sphagnum sp.; Electrical conductivity (EC): 0.012 mS / cm, pH: 4.39, Oxygen dissolved (OD): 12.69 mg / L, Water temperature (WT): 22.51 ºC.	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
03F2870E0345286EFF3DC28F977B29FF.taxon	etymology	Etymology: The epithet honours the eminent Brazilian phycologist Dr Carlos Eduardo de Mattos Bicudo, for his inestimable contribution to the dissemination of knowledge of phycology, especially desmids, in Brazil and America.	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
03F2870E0345286EFF3DC28F977B29FF.taxon	distribution	Distribution in Brazil: This species was noted in the Amazon region as Staurastrum donellii Kurt Förster (Förster 1963: Serra da Lua, Roraima State, fig. 5); Staurastrum pseudozonatum [var. minutum] f. rectum Kurt Förster & Eckert (Förster 1964: Rio das Femmeas, Tocantins State, fig. 6); Staurastrum donnellii var. simplex Croasdale & A. M. Scott (Scott & al. 1965: Vigia Municipality, Pará State, fig. 7); Staurastrum pseudozonatum var. minutissimum Kurt Förster (Förster 1969: “ Igarapé Mapiri ” and “ Lago Jurucuí ”, Santarém Municipality, Pará State, fig. 8) and the present study (Itirapina Municipality, São Paulo State, figs 1 - 4).	en	Araújo, Camila Barbosa de (2023): Revaluation of some desmid taxa and the description of Staurastrum bicudoi sp. nov. (Desmidiaceae, Zygnematophyceae). Notulae Algarum 272: 1-3, DOI: 10.5281/zenodo.16652722
