Hassallia sp.

Da Anunciação, Raylane R., Paulino, Jonatas M., Moura, Ariadne N., Iv, H. Dail Laughinghouse & Gama, Watson A., 2024, Morphometric Characterization And The First Taxonomic Synthesis Of Terrestrial Cyanobacteria From The Atlantic Forest In Northeastern Brazil, Phytotaxa 646 (1), pp. 1-31 : 24

publication ID

https://doi.org/ 10.11646/phytotaxa.646.1.1

persistent identifier

https://treatment.plazi.org/id/8A0B8B74-886C-FF96-FF5E-4BBBCA59FA81

treatment provided by

Felipe

scientific name

Hassallia sp.
status

 

Hassallia sp. ( Fig. 15D–F View FIGURE 15 ).

Filaments entangled, epiphytic on other cyanobacteria, 5.51–8.27 (9.62) µm wide. Sheath firm, 0.4–1.56 µm wide, non-lamellated, hyaline to brown. Trichomes cylindrical, slightly attenuated, heteropolar, intense tolypothricoid branches, constricted. Apical cell conical to rounded-conical, intensely constricted. Cells sub-quadratic to short, 4.06–6.67 µm wide, 2.11–5.26 µm long, ratio l/w = 0.69. Cell content granulated, grayish-purple. Basal heterocyte elliptical, 3.83– 6.76 µm wide, 2.48–5.83 µm long. Necridia present.

Habitat: —Tree bark; associated with Nostoc interbryum .

Notes: —This morphotype differs from other Hassallia species in relation to its apical cell being intensely constricted

Studied material: — PEUFR 55785

PEUFR

Universidade Federal Rural de Pernambuco

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