Flora do Rio de Janeiro: Alismataceae

Canalli, Yasmin de Mello; Bove, Claudia Petean

doi:10.1590/2175-7860201768103

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Echinodorus scaber is commonly misidentified for E. macrophyllus (Kunth) Micheli, however, it differs from Echinodorus scaber found in Maranhão State this species by having scabrous peduncles (vs. glabrous to glabrescent), achenes with 3-6 ribs (vs. 2-4) and 1-3 glands (vs. 1-5), short petals, up to 2.5 mm long (vs. 12 mm), and androecium with 15-17 stamens (vs. 18-20). Furthermore, the inflorescence of E. macrophyllus usually exhibits vegetative proliferation (e.g., Canalli and Bove, 2017;Matias and Nascimento, 2022), a condition absent in the examined specimens of E. scaber.…”

Section: Discussionmentioning

confidence: 94%

First record of the aquatic plant Echinodorus scaber Rataj (Alismataceae) for the State of Maranhão, Northeastern Brazil

Pestana,

Paiva,

Ottoni

et al. 2024

Braz. J. Biol.

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Echinodorus is the second largest genus of the aquatic plant family Alismataceae, comprising 28 species, of which 24 occur in Brazil. This study represents the first record of Echinodorus scaber Rataj for the State of Maranhão, based on material collected in the Municipality of Brejo, eastern Maranhão. Echinodorus scaber shares morphological similarities with E. macrophyllus (Kunth) Micheli, but it can be distinguished by (I) a highly branched inflorescence, (II) scabrous peduncles and petioles covered by stellate trichomes, and (II) small flowers with reflexed petals. This new record of E. scaber contributes to a better understanding of this genus’ diversity and distribution in Maranhão and underscores the necessity to broaden collection efforts for a better comprehension of the state’s flooded zones. Comprehensive collection efforts, with a special focus on aquatic plants and in locations far from the state’s main urban center, São Luís, may result in a significant knowledge increase of the flora, especially of the genus Echinodorus, which needs a broad taxonomic study. These recommendations may result in new records, range extensions, and species descriptions, contributing to the conservation of the aquatic environments of Maranhão.

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Section: Discussionmentioning

confidence: 94%

First record of the aquatic plant Echinodorus scaber Rataj (Alismataceae) for the State of Maranhão, Northeastern Brazil

Pestana,

Paiva,

Ottoni

et al. 2024

Braz. J. Biol.

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“…Depending on where it grows, the water poppy can present lemonyellow flowers with 3 petals and a brownish-red center, besides numerous stems in black or brown with 3-7 cm. Its flowers open two hours after dawn and last one day (Canalli, 2017;Nxumalo, 2016).…”

Section: Macrophytes In the Treatment Of Pollutantsmentioning

confidence: 99%

Effect of lead bioconcentration on leaf morphology and histology of aquatic macrophyte Hydrocleys nymphoides (Willd.)

Verde,

Macedo,

Marques

et al. 2023

Rev. Agro. Amb.

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Health and environmental problems due to contamination are global concerns. Phytoremediation - a biological and sustainable technique - employs plant species to remove, slow down, integrate or decompose certain contaminants to purify soil and water. Our study consisted in contaminating specimens of aquatic macrophyte Hydrocleys nymphoides (Willd.) in the laboratory to test their effectiveness in absorbing and interacting with lead. We analyzed different histological planes of the section and characterized the morphological development of this species. We cultivated 30 plant specimens and 10 control specimens in hydroponic lead acetate solutions at two different concentrations each, 2 and 4 mg.L-1. Statistical analysis revealed that even after contact with lead, specimens grew normally, increasing the number of leaves and flowers. They also presented greater stomatal development and spongy parenchyma thickening, corroborating that this macrophyte can effectively decontaminate water bodies contaminated with lead, constituting a low-cost and ecological alternative.

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“…The richness of Alismataceae species found in geographically similar state in Brazil where Atlantic Forest is the core vegetation, i.e. Rio de Janeiro state, with a total of nine species have been recorded (Canalli & Bove 2017). In other state with marked seasonality, i.e., Ceará state, 13 species have been recorded (Matias & Sousa 2011).…”

Section: Introductionmentioning

confidence: 99%

Flora of Espírito Santo, Brazil: Alismataceae

Matias

Nascimento

2022

Rodriguésia

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This floristic survey of Alismataceae from the state of Espírito Santo aims to update the diversity and extinction vulnerability data for the species. The taxa here listed were obtained from Splink and Reflora Virtual Herbarium databases. A total of seven native taxa were registered for Espírito Santo state: Echinodorus grandiflorus, E. macrophyllus, Helanthium bolivianus, Hydrocleis nymphoides, Limnocharis flava, Sagittaria lancifolia and S. rhombifolia; the exotic species Alisma plantago-aquatica presented one single record. The populations occurred in flooded areas located at low altitudes and were primarily collected from some preserved areas and in the coastal region of the state. This study presents a taxonomic identification key, morphological descriptions and species illustrations. Comments on ecology, conservation and geographical distribution of the species are also presented.

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Flora do Rio de Janeiro: Alismataceae

Abstract: ResumoO presente estudo tem como objetivo contribuir para o conhecimento das espécies da família Alismataceae no estado do Rio de Janeiro. O trabalho tem por base a análise morfológica de materiais depositados em herbários e coletas de campo, além de dados da literatura.

Cited by 5 publications

References 9 publications

First record of the aquatic plant Echinodorus scaber Rataj (Alismataceae) for the State of Maranhão, Northeastern Brazil

First record of the aquatic plant Echinodorus scaber Rataj (Alismataceae) for the State of Maranhão, Northeastern Brazil

Effect of lead bioconcentration on leaf morphology and histology of aquatic macrophyte Hydrocleys nymphoides (Willd.)

Flora of Espírito Santo, Brazil: Alismataceae

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