Sirodotia cryptica Necchi, N. L. Rossignolo & M. O. Paiano 2021, sp. nov
| Autor: | Rossignolo, Natalia L., Vis, Morgan L., Paiano, Monica O., Eloranta, Pertti, West, John A., Ganesan, E. K., Yasmin, Farishta, Lim, Phaik-Eem, Necchi, Orlando Jr |
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| Rok vydání: | 2021 |
| Předmět: | |
| DOI: | 10.5281/zenodo.7819352 |
| Popis: | Sirodotia cryptica Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov. (Fig. 4 F-J) TYPE. — F. R. Borges, 15.IV.2014, (SJRP [SJRP 32575]). TYPE LOCALITY. — Brazil, Goiás, Highway GO-070, between the municipalities of Jussara and Itaberaí; 16°00’32.7”S, 48°55’55.9”W. ADDITIONAL SPECIMENS EXAMINED. — SJRP 31923 and SJRP 31925 (Appendix 1). ETYMOLOGY. — The species epithet indicates that the alga is cryptic with another species described in this study (S. amazonica Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov.). DISTRIBUTION. — South America, Brazil (midwestern). REPRESENTATIVE DNA SEQUENCES. — COI-5P (KF010488, KF010491, MW053463,), rbc L (KC951865, KC951869, MW053479) and LSU (MW053494, MW053495, MW053498). Description Plants monoecious or dioecious; whorls 223-559 µm in diameter; primary fascicles (4-)5-10(-11) cells; proximal cells cylindrical or ellipsoidal; distal cells spherical, ellipsoidal or obovoidal; secondary fascicles abundant, covering the entire internode; spermatangia spherical or obovoidal, 1-3 in a group, few or abundant on primary or secondary fascicles, 6-9 µm in diameter; carpogonial branches composed of 1-4 disc- or barrel shaped cells, arising from periaxial, proximal or median cells of primary fascicles, rarely on the secondary fascicles or cortical filaments, short, 10-25 µm long; carpogonia with sessile, elongate cylindrical (with wavy margins), elongate-conical or fusiform trichogynes, sometimes with anomalous shapes (bent end), (24-)26-58 µm in length, 9-13(-15) µm in diameter; gonimoblast initial developing from the protuberant side of the carpogonium; gonimoblast filaments prostrate with erect branches of 2-5 cells; carposporangia subspherical, ellipsoidal or obovoidal, 10-17 µm in length, (7-)8-11 µm in diameter. Remarks This species is morphologically indistinguishable from S. amazonica Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov. that also occurs in Brazil, but is genetically divergence and thus, it is here described as a new species. Published as part of Rossignolo, Natalia L., Vis, Morgan L., Paiano, Monica O., Eloranta, Pertti, West, John A., Ganesan, E. K., Yasmin, Farishta, Lim, Phaik-Eem & Necchi, Orlando Jr, 2021, Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species, pp. 93-127 in Cryptogamie, Algologie 20 (8) on page 104, DOI: 10.5252/cryptogamie-algologie2021v42a8, http://zenodo.org/record/7828571 |
| Databáze: | OpenAIRE |
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