Table 1 in Recognizing novel cyanobacterial diversity in marine benthic mats, with the description of Sirenicapillariaceae fam. nov., two new genera, Sirenicapillaria gen. nov. and Tigrinifilum gen. nov., and seven new species

Table 1. Morphological characteristics of known species of Sirenicapillaria gen. nov., Tigrinifilum gen. nov. and Capilliphycus. Measurements (μm) are represented as min–max and mean ± st. dev. Genus SpeciesSirenicapillaria rigidaSirenicapillaria staugleraeSirenicapillaria glaucaTigrinifilum floridanumTigrinifilum guerandenseCapilliphycus flavicepsCapilliphycus guerandensisThallusrigid and loose, tangled knotsflexuous and erectloose, tangled knotsentangled, mat-likefloccoseentangled, mat-likeentangled, mat-likeFilament width (µm)28.0–83.0(–94) 47.6 ± 17.212.5–33(–35) 19.5 ± 4.618.4–25.2(–28) 22.4 ± 2(9–)10.2–19.0 14.2 ± 1.5-14–18.9 16.5 ± 1.418.5–29.2 22.3 ± 3.1Sheathhyaline, thick, lamellatehyaline, thin to thickhyaline, thinhyaline, facultativeno sheathhyaline, facultativethick, facultativeTrichomeprogressive attenuationprogressive attenuationslight attenuationno attenuationnononoCell shapediscoiddiscoiddiscoiddiscoiddiscoiddiscoiddiscoidCell length (µm)1.8–3.9 2.9 ± 0.51.0–2.4 1.5 ± 0.31.3–2.8 1.8 ± 0.41.0–2.7 1.7 ± 0.31.5–2.9 2.2 ± 0.41.4–2.4 1.7 ± 0.21.0–2.2 1.6 ± 0.3Cell width (µm)22.8–63.3 37.9 ± 11.910–26.8 15.2 ± 3.9(14–)15–20(–21) 17.2 ± 1.8(7–)8.0–19.2 11.2 ± 1.45.3–6.2 5.8 ± 0.310.7–14 12.4 ± 1.115.8–24.9 19 ± 2.5Apical cellbluntly roundedbluntly roundedbluntly roundedbluntly roundedconical to bluntly roundedconicalconicalCell contenthomogeneoushomogeneoushomogeneoushomogenoushomogeneoushomogenoushomogenousCell colourred, light to dark brownlight to dark brownforest greengreen, blue green, grey, brown, gold,blue green, greengreen to greenish yellow, yellow at apicesgreen, yellow at apicesConstrictionyesyesyesyesnoslightlynoCross-wallfacultative granulationfacultative granulationfacultative granulationvery granulatedvery granulatedgranulatednoReproductionrelease of single cells, hormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellsrelease of single cells, hormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellsrelease of single cells, hormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellshormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellstrichome fragmentation, helped or not by necridic cellshormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellshormogonia by straight or diagonal trichome fragmentation, helped or not by necridic cellsOccurrencemarine and benthic in seagrassesmarine and benthic in seagrassesmarine and benthic in seagrassesmarine and benthic and epipsammichypersaline, marine planktonicmarine and benthic and epipsammichypersaline, benthic