Scytonemataceae, Rabenhorst ex Bornet et Flahault, 1886
publication ID |
https://doi.org/ 10.11646/phytotaxa.646.1.1 |
persistent identifier |
https://treatment.plazi.org/id/8A0B8B74-886E-FF94-FF5E-4AD8CA56FA71 |
treatment provided by |
Felipe |
scientific name |
Scytonemataceae |
status |
|
Scytonemataceae View in CoL View at ENA sp. ( Fig. 13M–O View FIGURE 13 ; 14A–C View FIGURE 14 ).
Filaments entangled with apical portion erected, 7.13–31.08 µm wide. Trichomes heteromorphic, cylindrical, slightly attenuated, with intense scytonematoid geminate or single branched and tolypotrichoid branched, not constricted or constricted in meristematic zones. Sheath firm, 0.86–6.77 µm wide, one lamella present or absent, hyaline to brown. Apical cell rounded-conical. Cells isodiametric, sub-quadratic to short in meristematic zones, 4.32–28.64 µm wide, 2.47–8.92 µm long. Cell content homogeneous to granulated, blue-green to grayish-purple. Basal heterocyte elliptical or cylindrical to short when intercalary, 7.5–20.92 µm wide, 2.35–9.16 µm long. Necridia present. Hormogonia slightly constricted or not constricted, attenuated, with basal heterocyte or not, cell short, apical cell rounded.
Habitat: —Tree bark.
Notes: —The corticolous habitat, heteromorphic filaments, intense scytonematoid branching are the diacritical features that distinguish this morphotype from Scytonemataceae species. This morphotype taxa is similar to Scytonematopsis Kisseleva bur differs from not have trichomes distinctly narrowed towards end.
Studied material:— PEUFR 55793, PEUFR 56636
Family Stigonemataceae (Bornet et Flahault) Borzì (1892: 43) View in CoL .
Stigonema corticola Sant’Anna, Kaštovský, Hentschke & Komárek (2013: 15) ( Fig. 14D–F View FIGURE 14 ).
Filaments multiseriate, erect, 20–30.49 µm wide, filaments and branches not clearly distinguishable. Sheath firm, non-lamellated, brown. Cell irregular elongated or ± rounded, 5.54–15.65 µm wide. Cell content granulated, blue-green. Heterocyte rounded to semi-spherical, lateral to intercalary, 5.82–11.33 µm wide. Hormogonia numerous, developed in the apical branches.
Habitat: —Tree bark associated with Gloeocapsa sp.1 , Gloeocapsopsis sp. and Dapisostemon sp.
Studied material: — PEUFR 55774
PEUFR |
Universidade Federal Rural de Pernambuco |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
Scytonemataceae
Da Anunciação, Raylane R., Paulino, Jonatas M., Moura, Ariadne N., Iv, H. Dail Laughinghouse & Gama, Watson A. 2024 |
Stigonema corticola
Sant'anna, C. L. & Kastovsky, J. & Hentschke, G. S. & Komarek, J. 2013: 15 |
Stigonemataceae (Bornet et Flahault) Borzì (1892: 43)
Borzi, A. 1892: ) |