Staurastrum antarcticum Anissimova & Kutuzova, sp. nov. ...
Staurastrum antarcticum Anissimova & Kutuzova, sp. nov. (Figs. 2–3) Diagnosis: —Cells in frontal view about as long as broad, with a rather deep sinus, widely opened from a U-shaped apex. Semicell body in frontal view oblong-subelliptic with broadly rounded angles and about straight apex. Semice...
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Zenodo
2024
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| Online Access: | https://dx.doi.org/10.5281/zenodo.13213570 https://zenodo.org/doi/10.5281/zenodo.13213570 |
| Summary: | Staurastrum antarcticum Anissimova & Kutuzova, sp. nov. (Figs. 2–3) Diagnosis: —Cells in frontal view about as long as broad, with a rather deep sinus, widely opened from a U-shaped apex. Semicell body in frontal view oblong-subelliptic with broadly rounded angles and about straight apex. Semicells in apical view 3-radiate with slightly concave sides and broadly rounded angles. Cell wall smooth. Cell wall pores concentrated in a circle around the base of the semicell lobes, evenly spaced at a distance of about 2 µm from each other. Zygospores are not known. Dimensions: length 9.6-10.6 μm, breadth 9.8‑11.1 μm, isthmus 4.1‑4.7 μm. Type:—EAST ANTARCTICA, Oasis Larsemann Hills: LH-59 lake, 69°23’31.00” S, 76°21’8.36” E, epiphyton, I. Kutuzova, 13 February 2023, (holotype: MW!, preserved as a fixed natural sample, depicted in Figs. 2A, B, Algae collection of the Department of Mycology and Algology). Distribution and ecology:—The taxon is only known from LH-59 lake in the area of Progress Station (East ... : Published as part of Anissimova, Olga V. & Kutuzova, Irina A., 2024, Staurastrum antarcticum: a new desmid species from a lake in Oasis Larsemann Hills (East Antarctica), pp. 236-240 in Phytotaxa 644 (3) on pages 238-239, DOI: 10.11646/phytotaxa.644.3.7, http://zenodo.org/record/13214748 ... |
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