The genus Cyperus (Cyperaceae) in Rio Grande do Norte State, Brazil

Ribeiro, André Rodolfo de Oliveira; Alves, Marccus; Prata, Ana Paula do Nascimento; Oliveira, Odaci Fernandes de; Sousa, Leandro de Oliveira Furtado de; Oliveira, Regina Célia de

doi:10.1590/2175-7860201566221

Cited by 14 publications

(13 citation statements)

References 19 publications

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“…O g ê n e r o C y p e r u s c a r a c t e r i z a -s e principalmente por suas folhas dispostas em rosetas, escapos trígonos, inflorescência terminal, glumas dispostas disticamente, estiletes trífidos e aquênios trígonos (Goetghebeur 1998;Hefler 2007;Costa 2013;Ribeiro et al 2015). Filogenias recentes (Larridon et al 2011a;2011b;2011c;2013) indicam Cyperus monofilético com a inclusão Kyllinga Rottb., Lipocarpha R.…”

Section: Cyperus Lunclassified

“…Cyperus haspan é reconhecida principalmente pela ausência das lâminas foliares, reduzidas a bainhas, caráter que pode ser bastante variável nos espécimes (Luceño et al1997;Araújo & LonghiWagner 1996;Ribeiro et al 2015), entretanto, essa variação não foi observada nas espécies analisadas, além dos escapos trígonos com lados côncavos e espiguetas digitadas, verdes a vináceas.…”

Section: 2unclassified

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Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyperaceae

2016

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e Pycreus (1). Eleocharis ayacuchensis está sendo registrada pela primeira vez no Brasil. Bulbostylis lagoensis e Eleocharis endounifascis são novos registros para o estado do Pará. São fornecidas chaves analíticas de identificação para gêneros e espécies, descrições morfológicas, pranchas ilustrativas das espécies, além de comentários taxonômicos, de distribuição geográfica e habitats preferenciais dos táxons estudados. Palavras-chave: afloramentos de rochas de ferro, Amazônia, FLONA Carajás. AbstractWe found 45 species of the Cyperaceae, belonging to 12 genera: Rhynchospora (12 species), Cyperus (9), Eleocharis (7), Scleria (4), Bulbostylis (4), Fimbristylis (2), Kyllinga (2), Becquerelia (1), Hypolytrum (1), Lagenocarpus (1), Lipocarpha (1) and Pycreus (1). Eleocharis ayacuchensis is being recorded for the first time in Brazil. Bulbostylis lagoensis and Eleocharis endounifascis are new records to Pará state. Identification keys are provided at genera and species levels, as well as morphological descriptions, illustrations of species, and taxonomic comments, geographical distribution and preferred habitats of the studied taxa. Key words: ironstone outcrops, Amazon, FLONA Carajás. Fig. 1a-b Ervas perenes, ca. 1 m alt., rizomatosas. Folhas 7-11 × 4-5 cm; bainhas 2-4 cm compr.; lâminas foliares 5-7 cm compr., basilares e caulinares, cartáceas, verdes, três nervuras proeminentes, nervura central e margens antrorsamente escabrosas, faces adaxiais e abaxiais glabras. Escapo ca. 85 cm compr., trígono, canaliculado. Brácteas involucrais 6,7-11 × 1-1,8 cm, lanceoladas, verdes, nervura central e margens inermes. Inflorescência paniculada composta terminal e lateral; espiguetas masculinas pediceladas; glumas masculinas 2-4 × 1-2 mm; espiguetas femininas curto pediceladas, ovoides; glumas femininas 4-6 × 2-5 mm, ovadas, ápice recurvado; hipogínio rugoso, bordo inteiro, branco. Aquênios ca. 3-3,5 × 2 mm, globosos, brancos, superfície transversalmente rugosa. Becquerelia cymosa caracteriza-se principalmente por suas inflorescências paniculadas compostas, terminais e laterais, espiguetas unissexuadas, glumas com ápice recurvado, aquênio branco transversalmente rugoso. Flora das cangas daPossui distribuição Neotropical (Kearns 1998). No Brasil ocorre em todas as regiões, na região Centro-Oeste apenas no estado do Mato Grosso (BFG 2015). Serra dos Carajás: Serra Norte: N5. Bulbostylis KunthO gênero Bulbostylis caracteriza-se por apresentar folhas setáceas, ápice da bainha com tricomas longos, inflorescência monocéfala ou em antelódio simples ou composto, estilopódio persistente tuberculiforme. Assemelha-se a outros dois gêneros, Abildgaardia Vahl (que não ocorre na área de estudo) e Fimbristylis Vahl, diferenciando-se principalmente pela presença de tricomas no ápice da bainha e estilopódio persistente no aquênio (Goetghebeur 1998;Bruhl 1995;Prata 2004). Bulbostylis compreende ca. 150 espécies, com distribuição nas regiões tropicais a subtropicais, podendo chegar até áreas temperadas. Tem como centros de diversidade a África ...

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Section: Cyperus Lunclassified

Section: 2unclassified

Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyperaceae

2016

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“…Some of these (A. conyzoides, C. sylvestris and C. surinamensis) occur in all biomes in Brazil (Flora do Brasil 2020 em construção), being than A. conyzoides is recognized as an invasive species of crops (Klein & Fellipe 1991). In the Atlantic rainforest, C. surinamensis and M. scabra are typical of edges and capoeiras (Nascimento et al 2012, Ribeiro et al 2015, while C. sylvestre and C. hexandra are tree species classified in early secondary about the ecological group and are common in both the Atlantic rainforest and the Cerrado (Silva et al 2003, Paula et al 2004.…”

Section: Discussionmentioning

confidence: 99%

Floristic survey of the Mata do Junco Wildlife Refuge, Capela, Sergipe State, Brazil

Oliveira

Gomes

Déda

et al. 2016

Hoehnea

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-(Floristic survey of the Mata do Junco Wildlife Refuge, Capela, Sergipe State, Brazil). Seeking to expand the floristic studies for the Atlantic rainforest, we herein present, based on field trips (January 2011 to April 2013) and herbarium records, a list of vascular plants found in the Mata do Junco Wildlife Refuge, State of Sergipe, Northeastern Brazil. We registered a total of 380 species, 244 genera and 80 families, with 45 new occurrences for the Atlantic rainforest of the State of Sergipe. The most representative families were Fabaceae (36 species), Cyperaceae (29) and Poaceae (28). Herbs were the most representative regarding habit (167 species or 44%). We found two threatened species: Caesalpinia echinata Lam. and Campylocentrum pernambucense Hoehne, both in the "endangered" category. Overall, the results indicate that the Mata do Junco Wildlife Refuge is floristically similar to other areas of Atlantic rainforest in the State of Sergipe. Moreover, the existence of new records and of a threatened native species reinforces its importance for conservation.

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“…Recent taxonomic work has complemented this knowledge by focusing on specific taxonomic groups or on floristic studies. Groups that have been studied recently include Chamaecrista (Queiroz and Loiola 2009), Turneraceae (Rocha et al 2012), Paspalum (Oliveira et al 2013a), Leguminosae-Papilionoideae (São-Mateus et al 2013), Erythroxylaceae (Costa-Lima et al 2014), Capparaceae (Soares-Neto and Jardim 2015), Cyperus (Ribeiro et al 2015a), Fabaceae (Amorim et al 2016), and Bignoniaceae (Colombo et al 2016). Recent floristic studies focused on specific areas or vegetation types, such as the deciduous and semi-deciduous forests (Cestaro and Soares 2004; 2008), savanna (Oliveira et al 2012), riparian vegetation (Oliveira et al 2013b, Ribeiro et al 2014) and the herbaceous vegetation in Seridó (Santana and Souto 2006, Amorim et al 2006, Ferreira et al 2009, Queiroz et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances a small herbarium collection during a funding shortage

Versieux¹,

Dávila²,

Delgado³

et al. 2017

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A National Forest Inventory (NFI) encompassing the entire territory of Brazil is in progress. It is coordinated and promoted by the Brazilian Forest Service of the Ministry of Environment. In each state, the NFI collaborates with local herbaria by receiving collected plant material and performing species identification. Consultants are hired by the NFI and work at the local herbaria under the supervision of a curator. In exchange for curatorial assistance, the NFI provides equipment and consumables for the herbarium. Other public projects collaborating with NFI are Reflora and the Brazilian Biodiversity Information System (SiBBr). Both projects have online platforms that seek to connect herbaria and make all their data freely available, including high quality digital images of specimens. Through inter-institutional collaboration, the joint interests of NFI, Reflora, SiBBr and local herbaria have improved collections, expanded the online Reflora database, and provided the NFI with verified species lists. These strategic uses of public funding are positively affecting Botany, particularly during a period of economic crisis and cuts in research. Here, we illustrate the increase in floristic knowledge through the improvement of a herbarium collection in Rio Grande do Norte (RN) – the Brazilian state with the lowest levels of plant richness. We report 71 new occurrences of vascular plants for RN, belonging mainly to the Poaceae, Fabaceae and Malvaceae. Most of the species with new occurrences have a Neotropical distribution (21 spp.) and only seven are restricted to the Brazilian Northeast. Our findings highlight previous gaps in RN’s floristic knowledge. The partnership NFI, Reflora, SiBBr and the UFRN herbarium improved herbarium curation, digital collection, and quality of data. Finally, a fellowship provided by Reflora and SiBBr allowed improving curation by distributing duplicates and incorporating the Herbarium of Câmara Cascudo Museum.

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The genus Cyperus (Cyperaceae) in Rio Grande do Norte State, Brazil

Cited by 14 publications

References 19 publications

Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyperaceae

Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyperaceae

Floristic survey of the Mata do Junco Wildlife Refuge, Capela, Sergipe State, Brazil

Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances a small herbarium collection during a funding shortage

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