-54.302692, -29.607473: 10 Treatments

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Rhamnidium riograndense   sp. nov.  Figueira, Maurício & Schindler, Bianca, 2021, Rhamnidium riograndense (Rhamnaceae), a new species from southern Brazil, Phytotaxa 510 (1), pp. 53-60 : 54-57 54-57
Calibrachoa irgangiana   sp. nov.  Stehmann, João Renato & Greppi, Julián Alejandro, 2011, Two new species of Calibrachoa (Solanaceae) from subtropical South America, Phytotaxa 25, pp. 31-38 : 32-34 32-34
Chromolaena squarrulosa     Christ, Anderson Luiz, Nakajima, Jimi Naoki & Ritter, Mara Rejane, 2025, Towards a better understanding of the Chromolaena congesta complex (Asteraceae, Eupatorieae): updated synopsis with taxonomic novelties, Phytotaxa 689 (2), pp. 163-184 : 178-181 178-181
Falconina gracilis     García, Fabián & Bonaldo, Alexandre B., 2023, Taxonomic revision of the soldier spider genus Falconina Brignoli, 1985 (Araneae: Corinnidae: Corinninae), Zootaxa 5343 (3), pp. 201-242 : 205-220 205-220
Glechon villosissima   sp. nov.  Luz, Laura, Bordignon, Sérgio Augusto De Loreto & Thode, Verônica, 2025, Novelties in Glechon (Lamiaceae): Two new species endemic to Rio Grande do Sul (Brazil), Phytotaxa 697 (3), pp. 265-273 : 269-270 269-270
Oxalis niederleinii     Nuernberg-Silva, Anelise & Fiaschi, Pedro, 2021, Taxonomic revision and morphological delimitation of Oxalis sect. Ripariae (Oxalidaceae), Phytotaxa 529 (1), pp. 125-159 : 142-144 142-144
Glossoscolex     Bartz, Marie L. C., James, Samuel W., Steffen, Gerusa P. K., Antoniolli, Zaida, Steffen, Ricardo B. & Brown, George G., 2018, New species-group taxa of Glossoscolex (Clitellata: Glossoscolecidae) from Rio Grande do Sul, Brazil, Zootaxa 4496 (1), pp. 548-561 : 560 560
Glossoscolex     Bartz, Marie L. C., James, Samuel W., Steffen, Gerusa P. K., Antoniolli, Zaida, Steffen, Ricardo B. & Brown, George G., 2018, New species-group taxa of Glossoscolex (Clitellata: Glossoscolecidae) from Rio Grande do Sul, Brazil, Zootaxa 4496 (1), pp. 548-561 : 553-554 553-554
Sida urens     Grings, Martin & Boldrini, Ilsi Iob, 2022, Synopsis of Sida (Malvoideae, Malvaceae) in the state of Rio Grande do Sul, Brazil, Phytotaxa 542 (2), pp. 105-135 : 130 130
Hisonotus charrua     Carvalho, Tiago Pinto & Reis, Roberto E., 2011, Taxonomic review of Hisonotus Eigenmann & Eigenmann (Siluriformes: Loricariidae: Hypoptopomatinae) from the laguna dos Patos system, southern Brazil, Neotropical Ichthyology 9 (1), pp. 1-48 : 21-22 21-22