taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03C387BAFFB3FFF6EFC6F8DAFD6BFF29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840356/files/figure.png	https://doi.org/10.5281/zenodo.7840356	FIGURES 1–14. Surirella liubingii sp. nov., LM (1000×). Fourteen different valves showing the size diminution series of this species. Note that the costa-stria bundles (CSBs) do not reach the valve margins because the internal wall of the raphe canal grows into the cell cavity to form a “pseudoseptum” from the valve margin (indicated by two arrows in Fig. 4). Fig. 1 corresponds to holotype specimen. Scale bar = 10 μm (in Fig. 1).	FIGURES 1–14. Surirella liubingii sp. nov., LM (1000×). Fourteen different valves showing the size diminution series of this species. Note that the costa-stria bundles (CSBs) do not reach the valve margins because the internal wall of the raphe canal grows into the cell cavity to form a “pseudoseptum” from the valve margin (indicated by two arrows in Fig. 4). Fig. 1 corresponds to holotype specimen. Scale bar = 10 μm (in Fig. 1).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB3FFF6EFC6F8DAFD6BFF29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840358/files/figure.png	https://doi.org/10.5281/zenodo.7840358	FIGURES 15–20. Surirella liubingii sp. nov., SEM, external view. 15–17. Three valves showing the valve shape, the pattern of costa-stria bundles (CSBs, white arrows labeled in Fig. 16) alternated with over-fibula costae (OFCs, black arrows labeled in Fig. 16) from pole to pole. 18. Middle section of the valve, detail from Fig. 17, note CSBs, OFCs, and multiseriate striae. 19, 20. Details of the valve apices from Fig. 17, note the simple, interrupted raphe endings at both the footpole (Fig. 19, two arrows) and headpole (Fig. 20, two arrows).Scale bars = 5 μm (Figs 15–17), 1 μm (Figs 18–20).	FIGURES 15–20. Surirella liubingii sp. nov., SEM, external view. 15–17. Three valves showing the valve shape, the pattern of costa-stria bundles (CSBs, white arrows labeled in Fig. 16) alternated with over-fibula costae (OFCs, black arrows labeled in Fig. 16) from pole to pole. 18. Middle section of the valve, detail from Fig. 17, note CSBs, OFCs, and multiseriate striae. 19, 20. Details of the valve apices from Fig. 17, note the simple, interrupted raphe endings at both the footpole (Fig. 19, two arrows) and headpole (Fig. 20, two arrows).Scale bars = 5 μm (Figs 15–17), 1 μm (Figs 18–20).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB3FFF6EFC6F8DAFD6BFF29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840360/files/figure.png	https://doi.org/10.5281/zenodo.7840360	FIGURES 21–26. Surirella liubingii sp. nov., SEM, internal view. 21–23. Three complete valves, note the robust fibulae and the internal wall of the raphe canal that distinctly grows into the cell cavity to the extent that the internal raphe canal wall develops to form a longitudinal siliceous plate (i.e., a “pseudoseptum”) from the valve margin, indicated by two double-headed arrows in Fig. 21), which hides the portula structure. 24. Headpole from Fig. 21, note the continuous raphe. 25. Middle part, detail from Fig. 21, note the robust fibulae extending to the midline (two arrows) and multiseriate striae. 26. Footpole from Fig. 21, note interrupted raphe endings (two arrows) and striated raphe canal wall (two wavy arrows). Scale bars = 5 μm (Figs 21–23), 1 μm (Figs 24–26).	FIGURES 21–26. Surirella liubingii sp. nov., SEM, internal view. 21–23. Three complete valves, note the robust fibulae and the internal wall of the raphe canal that distinctly grows into the cell cavity to the extent that the internal raphe canal wall develops to form a longitudinal siliceous plate (i.e., a “pseudoseptum”) from the valve margin, indicated by two double-headed arrows in Fig. 21), which hides the portula structure. 24. Headpole from Fig. 21, note the continuous raphe. 25. Middle part, detail from Fig. 21, note the robust fibulae extending to the midline (two arrows) and multiseriate striae. 26. Footpole from Fig. 21, note interrupted raphe endings (two arrows) and striated raphe canal wall (two wavy arrows). Scale bars = 5 μm (Figs 21–23), 1 μm (Figs 24–26).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB3FFF6EFC6F8DAFD6BFF29.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840388/files/figure.png	https://doi.org/10.5281/zenodo.7840388	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FC18FC69F9E5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840372/files/figure.png	https://doi.org/10.5281/zenodo.7840372	FIGURES 55–66. Surirella lacrimula, LM (1000×). 55–66. Twelve different valves showing the size diminution series. Note the ovate valve outline, the recognizable central and outside portions of the valve (labeled in Fig. 59), and the discernible costa-stria bundles (CBSs) within the outside portion. Scale bar = 10 μm (in Fig. 55).	FIGURES 55–66. Surirella lacrimula, LM (1000×). 55–66. Twelve different valves showing the size diminution series. Note the ovate valve outline, the recognizable central and outside portions of the valve (labeled in Fig. 59), and the discernible costa-stria bundles (CBSs) within the outside portion. Scale bar = 10 μm (in Fig. 55).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FC18FC69F9E5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840376/files/figure.png	https://doi.org/10.5281/zenodo.7840376	FIGURES67–71. Surirella lacrimula, SEM, externalview.67.A completevalve showing the relativelyflatvalve surface andinconspicuous costa-stria bundles (CSBs). 68, 69. Details of the apices, from Fig. 67. 70, 71. Details of the middle section of the valve, from Fig. 67. Note that over-fibula costae (OFCs) are difficult to distinguish. Scale bars = 5 μm (Fig. 67), 1 μm (Figs 68–71).	FIGURES67–71. Surirella lacrimula, SEM, externalview.67.A completevalve showing the relativelyflatvalve surface andinconspicuous costa-stria bundles (CSBs). 68, 69. Details of the apices, from Fig. 67. 70, 71. Details of the middle section of the valve, from Fig. 67. Note that over-fibula costae (OFCs) are difficult to distinguish. Scale bars = 5 μm (Fig. 67), 1 μm (Figs 68–71).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FC18FC69F9E5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840378/files/figure.png	https://doi.org/10.5281/zenodo.7840378	FIGURES 72–77. Surirella lacrimula, SEM, internal view. 72–74. Three complete valves, note the slim and short fibulae, some bifurcate (one arrow respectively), and the distinct central portion (indicated by a dotted line in Fig. 74). 75. Details on the middle section from Fig. 72. Note the presence of three portulae between two adjacent fibulae (three arrows) and multiseriate striae. 76. Headpole from Fig. 72, note the continuous raphe (wave arrow). 77. Footpole from Fig. 72, note the interrupted raphe endings (two arrows). Scale bars = 5 μm (Figs 72–74), 1 μm (Figs 75–77).	FIGURES 72–77. Surirella lacrimula, SEM, internal view. 72–74. Three complete valves, note the slim and short fibulae, some bifurcate (one arrow respectively), and the distinct central portion (indicated by a dotted line in Fig. 74). 75. Details on the middle section from Fig. 72. Note the presence of three portulae between two adjacent fibulae (three arrows) and multiseriate striae. 76. Headpole from Fig. 72, note the continuous raphe (wave arrow). 77. Footpole from Fig. 72, note the interrupted raphe endings (two arrows). Scale bars = 5 μm (Figs 72–74), 1 μm (Figs 75–77).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FC18FC69F9E5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840388/files/figure.png	https://doi.org/10.5281/zenodo.7840388	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FEA4FCCEFC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840364/files/figure.png	https://doi.org/10.5281/zenodo.7840364	FIGURES 27–42. Surirella minuta, LM (1000×). Sixteen valves illustrating the size diminution series. Note the costa-stria bundles that nearly reach the valve margins. Scale bar = 10 μm (in Fig. 27).	FIGURES 27–42. Surirella minuta, LM (1000×). Sixteen valves illustrating the size diminution series. Note the costa-stria bundles that nearly reach the valve margins. Scale bar = 10 μm (in Fig. 27).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FEA4FCCEFC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840366/files/figure.png	https://doi.org/10.5281/zenodo.7840366	FIGURES 43–48. Surirella minuta, SEM, external view. 43, 44. Two valves showing the valve shape and the pattern of costa-stria bundles (CSB, labeled with white arrows in Fig. 43) alternated with over-fibula costae (OFC, labelled with black arrows in Fig. 43) from pole to pole. 45, 46. Details of the middle section of the valve (Fig. 45 from Fig. 43, Fig. 46 from Fig. 44), note the pattern of CSB alternated with OFC and multiseriate striae. 47, 48. Details of the apices from Fig. 43. Note the raphe endings interrupted at both the headpole (Fig. 47) and footpole (Fig. 48). Scale bars = 5 μm (Figs 43, 44), 1 μm (Figs 45–48).	FIGURES 43–48. Surirella minuta, SEM, external view. 43, 44. Two valves showing the valve shape and the pattern of costa-stria bundles (CSB, labeled with white arrows in Fig. 43) alternated with over-fibula costae (OFC, labelled with black arrows in Fig. 43) from pole to pole. 45, 46. Details of the middle section of the valve (Fig. 45 from Fig. 43, Fig. 46 from Fig. 44), note the pattern of CSB alternated with OFC and multiseriate striae. 47, 48. Details of the apices from Fig. 43. Note the raphe endings interrupted at both the headpole (Fig. 47) and footpole (Fig. 48). Scale bars = 5 μm (Figs 43, 44), 1 μm (Figs 45–48).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FEA4FCCEFC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840370/files/figure.png	https://doi.org/10.5281/zenodo.7840370	FIGURES 49–54. Surirella minuta, SEM, internal view. 49, 50.Two complete valves, note the portulae are clearly visible. 51. Middle part of the valve, details from Fig. 49. Note that each fibula corresponds to a sinking in the mantle (three double-headed arrows). 52. Headpole from Fig. 49, note the continuing raphe (wavy arrow). 53. Footpole from Fig. 49, note the interrupted raphe endings (two arrows). 54. Middle part from Fig. 50, note only one portula between two adjacent fibulae (two arrows). Scale bars = 5 μm (Figs 49–50), 1 μm (Figs 51–54).	FIGURES 49–54. Surirella minuta, SEM, internal view. 49, 50.Two complete valves, note the portulae are clearly visible. 51. Middle part of the valve, details from Fig. 49. Note that each fibula corresponds to a sinking in the mantle (three double-headed arrows). 52. Headpole from Fig. 49, note the continuing raphe (wavy arrow). 53. Footpole from Fig. 49, note the interrupted raphe endings (two arrows). 54. Middle part from Fig. 50, note only one portula between two adjacent fibulae (two arrows). Scale bars = 5 μm (Figs 49–50), 1 μm (Figs 51–54).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF6EFC6FEA4FCCEFC7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840388/files/figure.png	https://doi.org/10.5281/zenodo.7840388	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF4EFC6F990FF30F9B4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840382/files/figure.png	https://doi.org/10.5281/zenodo.7840382	FIGURES 78–89. Surirella brebissonii var. kuetzingii, LM (1000×). 78–89. Twelve valves illustrating an incomplete size diminution series for this species. Note the ovate valve outline, the valve composed of a recognizable central portion and an outside portion, and the conspicuous costa-stria bundles (CSBs) within the outside valve portion (labeled in Fig. 83). Scale bar = 10 μm (in Fig. 78).	FIGURES 78–89. Surirella brebissonii var. kuetzingii, LM (1000×). 78–89. Twelve valves illustrating an incomplete size diminution series for this species. Note the ovate valve outline, the valve composed of a recognizable central portion and an outside portion, and the conspicuous costa-stria bundles (CSBs) within the outside valve portion (labeled in Fig. 83). Scale bar = 10 μm (in Fig. 78).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF4EFC6F990FF30F9B4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840384/files/figure.png	https://doi.org/10.5281/zenodo.7840384	FIGURES 90–95. Surirella brebissonii var. kuetzingii, SEM, external view. 90, 91. Two complete valves, note the valve composed of a central portion and outside portion (indicated in Fig. 91). 92. Details of the middle section from Fig. 90, note costa-stria bundles (CSBs) alternating with over-fibula costae (OFCs). 93, 94. Details of the headpole (Fig. 93) and footpole (Fig. 94) from Fig. 90. Note the simple, interrupted raphe endings at both poles (two arrows respectively). Scale bars = 5 μm (Figs 90, 91), 1 μm (Figs 92–95).	FIGURES 90–95. Surirella brebissonii var. kuetzingii, SEM, external view. 90, 91. Two complete valves, note the valve composed of a central portion and outside portion (indicated in Fig. 91). 92. Details of the middle section from Fig. 90, note costa-stria bundles (CSBs) alternating with over-fibula costae (OFCs). 93, 94. Details of the headpole (Fig. 93) and footpole (Fig. 94) from Fig. 90. Note the simple, interrupted raphe endings at both poles (two arrows respectively). Scale bars = 5 μm (Figs 90, 91), 1 μm (Figs 92–95).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF4EFC6F990FF30F9B4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840386/files/figure.png	https://doi.org/10.5281/zenodo.7840386	FIGURES 96–101. Surirella brebissonii var. kuetzingii, SEM, internal view. 96–98. Three complete valves. Note that the valve is composed of two portions: central and outside (labeled in Fig. 97). 99. Headpole from Fig. 96, note the continuous raphe at the apex (wavy arrow). 100. Footpole from Fig. 96, note the raphe interrupted at the apex (two arrows). 101. Detail of the valve margin from Fig. 96, note the slim and short fibulae and the occurrence of three portulae between two adjacent fibulae. Scale bars = 5 μm (Figs 96–98), 1 μm (Figs 99–101).	FIGURES 96–101. Surirella brebissonii var. kuetzingii, SEM, internal view. 96–98. Three complete valves. Note that the valve is composed of two portions: central and outside (labeled in Fig. 97). 99. Headpole from Fig. 96, note the continuous raphe at the apex (wavy arrow). 100. Footpole from Fig. 96, note the raphe interrupted at the apex (two arrows). 101. Detail of the valve margin from Fig. 96, note the slim and short fibulae and the occurrence of three portulae between two adjacent fibulae. Scale bars = 5 μm (Figs 96–98), 1 μm (Figs 99–101).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
03C387BAFFB5FFF4EFC6F990FF30F9B4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7840388/files/figure.png	https://doi.org/10.5281/zenodo.7840388	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	FIGURES 102–107. Characteristics of the portulae among five Surirella taxa, SEM, internal view. 102, 103. Portula structure of S. liubingii, note the striated internal raphe canal wall (Fig. 102, three arrows) and the presence of only one portula between two adjacent fibulae (Fig.103, three arrows). 104.Portula structure of S. minuta, note the occurrence of only one portula (three arrows). 105–107.Portula structure of S. lacrimula, S. brebissonii var. kuetzingii, and S. tientsinensis, respectively. Note that these three taxa have three portulae between two adjacent fibulae (three arrows respectively) but that a marginal trough-like depression is only produced in S. brebissonii var. kuetzingii (Fig. 106). Scale bars =1 μm (Figs 102–107).	2023-04-18	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min		Zenodo	biologists	Long, Ji-Yan;Liu, Bing;Rioual, Patrick;Yang, Bin;Zhou, Min			
