Brasilonema terrestre

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 : 18-20

publication ID

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

persistent identifier

https://treatment.plazi.org/id/8A0B8B74-886A-FF92-FF5E-4F3FCA56FD99

treatment provided by

Felipe

scientific name

Brasilonema terrestre
status

 

Brasilonema terrestre C.L. Sant’Anna et J. Komárek in Sant’Anna et al. (2011:59) ( Fig. 12I–L View FIGURE 12 ).

Filaments forming fascicles conical, erect, short, 7.94–16.6 μm wide. Sheath firm, 0.91–2.68 μm wide, not lamellated, striate, yellowish-brown. Trichome cylindrical, slightly attenuated, false geminate branches rare, slightly constricted or not. Apical cell rounded. Cells cylindrical to short, 6.42–13.24 μm wide, 4.09–10.86 μm long, ratio l/w = 0.73. Cell content homogenous pale purple or yellowish-brown. Heterocyte cylindrical to ellipsoid, in intercalary position, 7.2–11.85 μm wide, 4.54–10.49 μm long. Hormogonia 6–13 cells, constricted, with intercalary heterocyte or not.

Habitat: —Metal plate.

Studied material: — PEUFR 55813, PEUFR 55815

Brasilonema cf. sennae (Komárek) C.L. Sant’Anna et J. Komárek in Sant’Anna et al. (2011: 57) ( Fig. 12M–P View FIGURE 12 ).

Filaments forming fascicles conical, erect on substrate, 10.01–15.92 μm wide. Sheath firm, 1.12–3.18 μm wide, 2– 4 lamellae, hyaline to brown. Apical cell rounded. Trichome cylindrical, false geminate branches rare. Cells sub-quadratic to short, 7.33–11.57 μm wide, 5.17–13.86 (15.02) μm long, ratio l/w = 0.88. Cell content granulated, olive-green. Heterocyte semielliptical, intercalary position, 7.67–14.03 μm wide, 4.35–13.02 μm long. Hormogonia up to 21 cells, constricted.

Habitat: —Steep slope next to the road.

Notes: —This morphotype differs from Brasilonema sennae by its habitat and cell l/w ratio.

Studied material: — PEUFR 55810

PEUFR

Universidade Federal Rural de Pernambuco

Kingdom

Bacteria

Phylum

Cyanobacteria

Class

Cyanobacteriia

Order

Cyanobacteriales

Family

Nostocaceae

Genus

Brasilonema

Loc

Brasilonema terrestre

Da Anunciação, Raylane R., Paulino, Jonatas M., Moura, Ariadne N., Iv, H. Dail Laughinghouse & Gama, Watson A. 2024
2024
Loc

Brasilonema terrestre

Sant'Anna, C. L. & Azevedo, M. T. P. & Fiore, M. F. & Lorenzi, A. S. & Kastovsky, J. & Komarek, J. 2011: 59
2011
Loc

Brasilonema cf. sennae (Komárek)

Sant'Anna, C. L. & Azevedo, M. T. P. & Fiore, M. F. & Lorenzi, A. S. & Kastovsky, J. & Komarek, J. 2011: 57
2011
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