taxonID	type	description	language	source
F85987BFFFCADA50FF18F91540BA6B72.taxon	etymology	Etymology: " yoneshigueae " in honor of Brazilian phycologist Dr. Yocie Yoneshigue-Valentin for her invaluable contributions to the marine sciences.	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
F85987BFFFCADA50FF18F91540BA6B72.taxon	diagnosis	Diagnosis: With the characteristics of the genus Sporolithon; differing from all other species by tetrasporangial compartments that characteristically have larger pore diameters (≥ 35 μm) and consequently have greater numbers of rosette cells surrounding the tetrasporangial compartment pores (≥ 19).	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
F85987BFFFCADA50FF18F91540BA6B72.taxon	materials_examined	Holotype: Brazil, Bahia, Plataforma Continental de Abrolhos, 17 º 48`35 `` S; 38 º 11`03 `` W, 28 m depth, GM Amado Filho, 23. x. 2008. The holotype here selected is deposited at Jardim Botânico do Rio de Janeiro (RB 569425). Isotypes: two isotype specimens have been selected (RB 569426, RB 569427). Paratypes: Brazil, Espírito Santo, Cadeia Vitória-Trindade, Banco Jaseur, 20 ° 29 ' 17 '' S; 30 ° 06 ' 07 '' W, 66 m depth (GM Amado Filho, 12. iii. 2009, RB 505770, RB 569466, RB 569468); Brazil, Espírito Santo, Cadeia Vitória-Trindade, Banco Davis, 20 ° 34 ' 42 '' S, 34 ° 46 ' 12 '' W, 57 m depth (GM Amado Filho, 14. ii. 2011, RB 569467); Brazil, Bahia, Plataforma Continental de Abrolhos, 17 º 54`01 `` S; 37 º 54`56 `` W, 52 m depth (GM Amado Filho, 11. iii. 2012, RB 570782). Brazil, Bahia, Plataforma Continental de Abrolhos, 17 º 48`35 `` S; 38 º 11`03 `` W, 28 m depth (DS Cajueiro Filho, 27. x. 2013, RB 600359, RB 600360, RB 600362).	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
F85987BFFFCADA50FF18F91540BA6B72.taxon	distribution	Distribution: Southeastern Brazil: Vitória-Trindade Chain and Espírito Santo State; northeastern Brazil: Abrolhos Bank (Fig. 1).	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
F85987BFFFCADA50FF18F91540BA6B72.taxon	materials_examined	Representative specimens examined: In addition to the type specimens designated above, the following specimens were also examined: Espírito Santo State, Brazil (19 º 37`S; 39 º 27 W, 46 – 77 m depth, NY Tomita, date unknown, SP 138576, as Sporolithon mediterraneum, slides only); Espírito Santo State, Brazil (20 º 10`S; 40 º 02`W, 60 m depth, NY Tomita, date unknown, SP 114638, SP 114641, SP 114642, as Sporolithon mediterraneum, slides only).	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
F85987BFFFCADA50FF18F91540BA6B72.taxon	description	Morphological / Anatomical Analysis Habit: Thalli non-geniculate, free-living and forming rhodoliths of up to 15 cm in diameter (Figs. 2 – 3) produced by successive, multiple overgrowing thalli. Crusts firmly adherent and when freshly collected, living thalli are pink to deep purple in colour. Thalli measure 1000 – 2500 μm thick and are warty to lumpy to fruticose (Figs. 2 – 3). Thalli bear numerous irregularly shaped protuberances that measure 2 – 15 mm in length and 2 – 13 mm in diameter (Figs. 2 – 3). Vegetative anatomy: Thalli dorsiventral, monomerous; haustoria absent (Fig. 4). Hypothallus plumose (noncoaxial), comprising 5 – 13 layers of cells. Hypothallial cells predominantly cylindrical, 10 – 30 μm in length by 5 – 15 μm in diameter. Perithallial cells squat to square to rectangular, 5 – 25 μm in length by 4 – 15 μm in diameter (Figs. 4 – 5). Cells of contiguous filaments joined by both cell fusions and secondary pit connections (Fig. 6); cell fusions predominate by a ratio of 2 – 3: 1. Subepithallial initials squat to square, 6 – 8 μm in length by 12 – 15 μm in diameter, typically as long as their immediate inward derivatives (Fig. 5). Epithallial cells occurring in a single layer, flattened and flared (Fig. 5), 2 – 4 μm in length by 5 – 8 μm in diameter. Reproductive anatomy: Gametangial plants not observed. Tetrasporangia occurring individually in calcified compartments that are aggregated in superficial sori. Sori raised 5 – 8 cells above the surrounding vegetative thallus (Figs. 7 – 13) and located predominantly at the tips of protuberances (Fig. 7). Tetrasporangial compartments elliptical to rounded, 140 – 210 μm in height and 70 – 130 μm in diameter, separated from one another by 1 – 11 paraphyses composed of 5 – 8 elongate cells (Fig. 11). Individual compartments formed on a distinct basal layer of elongate cells (Figs. 10 – 13). Compartment pores are large, 35 – 43 μm in diameter and surrounded by 19 – 24 rosette cells (Figs. 7 – 9) that are partly occluded by a mucilage ring around the pore opening (Figs. 8 – 9). Tetrasporangia cruciately divided, 90 – 140 μm in length by 80 – 100 μm in diameter (Figs. 12 – 13). Tetrasporangia bear apical pore plugs and are subtended by a single stalk cell measuring 20 – 40 μm in length by 25 – 50 μm in diameter (Figs. 12 – 13). Entire senescent tetrasporangial sori become buried in distinct layers in the thallus by overgrowing vegetative tissue (Fig. 10)	en	Bahia, Ricardo G., Amado-Filho, Gilberto M., Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B., Longo, Leila L. (2015): Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa 224 (2): 140-158, DOI: 10.11646/phytotaxa.224.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.224.2.2
