taxonID	type	description	language	source
03EB87EB887E4975FF0AFE59FE17FAEB.taxon	description	Dolichospermum brachiatum G. B. McGregor & Sendall, sp. nov. (Figs. 1 – 2, 4)	en	Mcgregor, Glenn B., Sendall, Barbara C. (2021): True branching and phenotypic plasticity in the planktonic cyanobacterium Dolichospermum brachiatum sp. nov. (Nostocales, Aphanizomenonaceae), from south-eastern Australia. Phytotaxa 491 (2): 93-114, DOI: 10.11646/phytotaxa.491.2.1, URL: http://dx.doi.org/10.11646/phytotaxa.491.2.1
03EB87EB887E4975FF0AFE59FE17FAEB.taxon	diagnosis	Diagnosis: — Filaments planktonic, generally straight, and surrounded by a broad hyaline mucilage up to 6.5 µm wide; facultatively produce T-type true branching (Fig 2). Branching is homothallic, progressing from a lateral bulge in vegetative cells perpendicular to the main filament, and through subsequent cell divisions, continue to elongate; vegetative cells of branches generally similar to, or only slightly broader than the parent filament, apical cells barrelshaped and hyaline. Vegetative cells with aerotopes, ± vacuolate, longer than broad (L: W 1.9 – 6.3) ranging from short cylindrical to elongated club-shaped; 7.7 – 21.1 µm long × 2.8 – 5.2 µm broad. Apical cells ± hyaline, elongated and club-shaped (L: W 2.6 – 6.5); 10.8 – 47.8 µm long × 2.6 – 7.3 µm broad. Heterocytes spherical to slightly longer than broad; 5.4 – 11.2 µm long × 4.4 – 7.5 µm broad. Akinetes solitary or up to two in series, and remote from heterocytes; ovate to elongated cylindrical (L: W 1.2 – 4.2); rounded at the ends; 13.1 – 33.8 µm long × 6.3 – 10.9 µm broad (Figs 1 & 4).	en	Mcgregor, Glenn B., Sendall, Barbara C. (2021): True branching and phenotypic plasticity in the planktonic cyanobacterium Dolichospermum brachiatum sp. nov. (Nostocales, Aphanizomenonaceae), from south-eastern Australia. Phytotaxa 491 (2): 93-114, DOI: 10.11646/phytotaxa.491.2.1, URL: http://dx.doi.org/10.11646/phytotaxa.491.2.1
03EB87EB887E4975FF0AFE59FE17FAEB.taxon	etymology	Etymology: — The epithet is from the Latin brachiatus – branched, in reference to the facultative formation of true branching.	en	Mcgregor, Glenn B., Sendall, Barbara C. (2021): True branching and phenotypic plasticity in the planktonic cyanobacterium Dolichospermum brachiatum sp. nov. (Nostocales, Aphanizomenonaceae), from south-eastern Australia. Phytotaxa 491 (2): 93-114, DOI: 10.11646/phytotaxa.491.2.1, URL: http://dx.doi.org/10.11646/phytotaxa.491.2.1
03EB87EB887E4975FF0AFE59FE17FAEB.taxon	materials_examined	Holotype: — Preserved specimen deposited in the Queensland Herbarium (BRI), accession number AQ 1018975. Type locality: — Waranga Basin, Victoria, Australia (36 ° 33.18 ’ S; 145 ° 6.0 ’ E). Gene sequences: — 16 S – 23 S rRNA gene sequences – GenBank Accession Nos. MT 535756, MT 535757, MT 535758, MT 535759.	en	Mcgregor, Glenn B., Sendall, Barbara C. (2021): True branching and phenotypic plasticity in the planktonic cyanobacterium Dolichospermum brachiatum sp. nov. (Nostocales, Aphanizomenonaceae), from south-eastern Australia. Phytotaxa 491 (2): 93-114, DOI: 10.11646/phytotaxa.491.2.1, URL: http://dx.doi.org/10.11646/phytotaxa.491.2.1
