{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T15:08:51Z","timestamp":1789744131778,"version":"4.0.1"},"reference-count":42,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004901","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de Minas Gerais","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004901","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["PK"],"abstract":"<jats:p>\n                    Species delimitation in\n                    <jats:italic>Imperata<\/jats:italic>\n                    (Poaceae, Andropogoneae) is complicated by overlapping morphological variation. Here, we reassess the taxonomy of Brazilian\n                    <jats:italic>Imperata<\/jats:italic>\n                    and investigate leaf and culm anatomy together with leaf epidermal micromorphology to evaluate their taxonomic relevance. Field collections and herbarium specimens were examined using standard taxonomic procedures, light microscopy, and scanning electron microscopy. Three species were confirmed for Brazil (\n                    <jats:italic>I. brasiliensis<\/jats:italic>\n                    ,\n                    <jats:italic>I. contracta<\/jats:italic>\n                    , and\n                    <jats:italic>I. tenuis<\/jats:italic>\n                    ), whereas the occurrence of\n                    <jats:italic>I. minutiflora<\/jats:italic>\n                    in the country was not supported. We provide an identification key, updated descriptions, distribution maps, and illustrations of the confirmed species, as well as lectotype designations for\n                    <jats:italic>I. contracta<\/jats:italic>\n                    and\n                    <jats:italic>I. tenuis<\/jats:italic>\n                    . The most informative anatomical and micromorphological characters were found in the leaf blade, including the presence of dumbbell-shaped guard cells in\n                    <jats:italic>I. brasiliensis<\/jats:italic>\n                    , distinctive long and short epidermal cells in\n                    <jats:italic>I. contracta<\/jats:italic>\n                    , and the absence of cushion-hairs in\n                    <jats:italic>I. tenuis<\/jats:italic>\n                    . In contrast, leaf sheath and culm anatomy were comparatively more uniform. Our results support the use of comparative anatomy and micromorphology as complementary sources of evidence for the delimitation of Brazilian species of\n                    <jats:italic>Imperata<\/jats:italic>\n                    .\n                  <\/jats:p>","DOI":"10.3897\/phytokeys.279.207098","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T14:47:05Z","timestamp":1789742825000},"page":"155-178","source":"Crossref","is-referenced-by-count":0,"title":["Anatomy and micromorphology of Imperata (Poaceae, Andropogoneae) from Brazil and their taxonomic significance"],"prefix":"10.3897","volume":"279","author":[{"given":"Bianca L. S.","family":"Pinto","sequence":"first","affiliation":[{"name":"Universidade Federal de Uberl\u00e2ndia, Programa de P\u00f3s-gradua\u00e7\u00e3o em Biologia Vegetal, Uberl\u00e2ndia, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cassiano A. D.","family":"Welker","sequence":"additional","affiliation":[{"name":"Universidade Federal de Uberl\u00e2ndia, Programa de P\u00f3s-gradua\u00e7\u00e3o em Biologia Vegetal, Uberl\u00e2ndia, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliana","family":"Marzinek","sequence":"additional","affiliation":[{"name":"Universidade Federal de Uberl\u00e2ndia, Programa de P\u00f3s-gradua\u00e7\u00e3o em Biologia Vegetal, Uberl\u00e2ndia, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2258","published-online":{"date-parts":[[2026,9,18]]},"reference":[{"key":"207098_B1","unstructured":"Ahmad F, Khan MA, Ahmad M, Zafar M, Khan A (2010) Taxonomic utilization of anatomical characters in tribe Andropogoneae (Poaceae) based on transverse sections of leaves. Journal of Medicinal Plants Research 4: 1349\u20131358."},{"key":"207098_B2","doi-asserted-by":"publisher","DOI":"10.2307\/3626813"},{"key":"207098_B3","unstructured":"Aronovich S, Britto DPPS, Meneguelli CA (1973) Influ\u00eancia da aduba\u00e7\u00e3o sobre a composi\u00e7\u00e3o bot\u00e2nica e sobre a produ\u00e7\u00e3o de pastagens. Pesquisa Agropecuaria Brasileira, S\u00e9rie Zootecnia 8: 19\u201326. https:\/\/apct.sede.embrapa.br\/pab\/article\/view\/17318"},{"key":"207098_B4","unstructured":"Clayton WD, Renvoize SA (1986) Genera graminum: Grasses of the world. Her Majesty\u2019s Stationery Office, London."},{"key":"207098_B5","doi-asserted-by":"publisher","DOI":"10.1080\/14772000.2021.1887959"},{"key":"207098_B6","doi-asserted-by":"publisher","DOI":"10.1002\/j.1537-2197.1990.tb13581.x"},{"key":"207098_B7","doi-asserted-by":"publisher","DOI":"10.4102\/abc.v12i1.1382"},{"key":"207098_B8","doi-asserted-by":"publisher","DOI":"10.4102\/abc.v12i4.1441"},{"key":"207098_B9","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1404177111"},{"key":"207098_B10","unstructured":"Falc\u00e3o WFA (1971) Contribui\u00e7\u00e3o ao conhecimento anat\u00f4mico da esp\u00e9cie Imperata brasiliensis Trin (Gramineae). Rodrigu\u00e9sia 38: 283\u2013291. https:\/\/www.jstor.org\/stable\/23492390"},{"key":"207098_B11","doi-asserted-by":"publisher","DOI":"10.1071\/BT23104"},{"key":"207098_B12","unstructured":"Filgueiras TS (2003) Imperata Cirillo. In: Zuloaga FO, Morrone O, Davidse G, Filgueiras TS, Peterson PM, Soreng RJ, Judziewicz EJ (Eds) Catalogue of New World grasses (Poaceae): III. Subfamilies Panicoideae, Aristidoideae, Arundinoideae, and Danthonioideae. Contributions from the United States National Herbarium 46: 270\u2013273."},{"key":"207098_B13","unstructured":"Flora e Funga do Brasil (2026) Poaceae. Jardim Bot\u00e2nico do Rio de Janeiro. https:\/\/floradobrasil.jbrj.gov.br\/FB193 [accessed 13 April 2026]"},{"key":"207098_B14","unstructured":"Flores AIP (2001) Imperata Cirillo. In: Longhi-Wagner HM, Bittrich V, Wanderley MGL, Shepherd GJ (Eds) Flora fanerog\u00e2mica do estado de S\u00e3o Paulo: Poaceae. FAPESP\/HUCITEC, S\u00e3o Paulo, 105\u2013106."},{"key":"207098_B15","unstructured":"Gabel ML (1982) A biosystematic study of the genus Imperata (Gramineae: Andropogoneae). 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