Notas taxonômicas sobre o gênero Nitella C. Agardh (Characeae) da Região Metropolitana de Feira de Santana, Estado da Bahia, Brasil

Ribeiro, Camila dos Anjos; Bueno, Norma Catarina; Prado, João Fernando; Ramos, Geraldo José Peixoto; Moura, Carlos Wallace do Nascimento

doi:10.1590/2236-8906-113/2020

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…As a rule, dioecious species of charophytes have smaller distribution ranges in comparison with monoecious ones. This was suggested for Chara, but it is applicable for Nitella representatives as well (Proctor 1980). Lack of intercontinental migration and exchange of dioecious taxa between the Western Hemisphere and Australia was concluded from worldwide species distribution patterns (Khan & Sarma 1984).…”

Section: Branchlets Of N Sonderi Is Noted In Descriptions Bymentioning

confidence: 99%

Nitella sonderi A.Braun (Charales, Charophyceae) – a New Record for South America, and First Record from Outside Australia

Romanov

Vidal‐Russell

Nikulin

et al. 2022

Cryptogamie, Algologie

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Section: Branchlets Of N Sonderi Is Noted In Descriptions Bymentioning

confidence: 99%

Nitella sonderi A.Braun (Charales, Charophyceae) – a New Record for South America, and First Record from Outside Australia

Romanov

Vidal‐Russell

Nikulin

et al. 2022

Cryptogamie, Algologie

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“…The current approach in taxonomical studies of charophytes is detailed morphological studies using light and scanning electron microscopy [11][12][13][14][15][16][17][18][19][20], usually in combination with phylogenetic analyses . Different regions of Eurasia were the focus of floristic research on charophytes in the last decade [10,, covering distribution, ecology, and protection, but only Europe has contemporary comprehensive flora mostly based on integrative taxonomy for its whole territory [77].…”

Section: Introductionmentioning

confidence: 99%

The Charophytes (Charophyceae, Characeae) from Dagestan Aquatic Habitats, North Caucasus: Biogeographical and Barcoding Perspectives

Romanov,

Mallaliev,

Barinova

et al. 2023

Environments

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The charophytes in many regions of the world are still poorly understood. This hampers the synthesis of distributional and ecological datasets at worldwide and continental scales, as well as complicates the generalization of species concepts for widely distributed and local taxa. To fill in the blanks for charophytes in the Caucasus and to improve our knowledge of species distribution areas in Eurasia, a field survey and study of available specimens from Dagestan (North Caucasus, Russia) was conducted based on morphological observation using light and scanning electron microscopy and molecular genetic analyses allowing for the precise identification and testing of the presence of cryptic and undescribed taxa. Nineteen new localities for seven Chara species and one Tolypella species, seven new species, and one new genus were identified in the studied region, and one new species in the Caspian Sea region was found. Some species records changed the outline or filled in the gaps in species distribution data. The presence of species distributed mainly in central Eurasia (C. globata, C. neglecta) with mainly Mediterranean–Middle Eastern species (C. gymnophylla) is notable for this region, as well as for other studied regions of the Caucasus characterized by a mixture combination of species with different distribution patterns. Chara gymnophylla was frequent in Dagestan, similar to the Mediterranean and Middle Eastern regions. Small brackish waterbodies on the coast of the Caspian Sea, freshwater mountain rivers, small associated waterbodies, and water reservoirs are the main habitats of charophytes in the studied region. Based on habitat preference and distribution in the Caucasus, recommendations for the protection of some species were suggested. The lack of endemic species among charophytes from Dagestan and Caucasus contrasts with the flora of terrestrial magnoliophytes that is rich in species endemism.

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A Contribution to a Better Understanding of the Nitella axillaris Group (Charales, Charophyceae): A Taxonomic Re-Examination of the Nitella translucens Collected in the Province of Ferrara, Italy

Abdelahad,

Troia,

van de Weyer

et al. 2024

Plants

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The identification of a charophyte population found in a rice field in Ferrara, North Italy, collected in 1999 and initially identified as Nitella translucens, has been reevaluated. Detailed morphological observations here reported have suggested that the specimen displays characteristics more akin to Nitella axillaris, particularly in the structure of its bicellular dactyls and axillary heads. Additional examinations, including scanning electron microscopy (SEM) of oospores and analyses of herbarium specimens—encompassing original materials of N. axillaris, N. axillaris f. tenuoir, and N. translucens f. confervoides—support this reclassification. Notably, the Ferrara specimens exhibit reticulate oospores and specific morphological traits that align well with N. axillaris. However, a syntype of N. axillaris housed at the BM Herbarium presents an anomaly, as it features granulate rather than the expected reticulate oospores. This discrepancy indicates a need for further studies, given that the lectotype of N. axillaris lacks oospores altogether. For now, the charophyte population from Ferrara can be provisionally assigned to N. axillaris “sensu Auctores”. Additionally, it appears to be an alien species introduced into the rice fields of Northern Italy, highlighting the need for further investigation into its taxonomy and distribution.

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Notas taxonômicas sobre o gênero Nitella C. Agardh (Characeae) da Região Metropolitana de Feira de Santana, Estado da Bahia, Brasil

Cited by 3 publications

References 15 publications

Nitella sonderi A.Braun (Charales, Charophyceae) – a New Record for South America, and First Record from Outside Australia

Nitella sonderi A.Braun (Charales, Charophyceae) – a New Record for South America, and First Record from Outside Australia

The Charophytes (Charophyceae, Characeae) from Dagestan Aquatic Habitats, North Caucasus: Biogeographical and Barcoding Perspectives

A Contribution to a Better Understanding of the Nitella axillaris Group (Charales, Charophyceae): A Taxonomic Re-Examination of the Nitella translucens Collected in the Province of Ferrara, Italy

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