01844nam a22002057a 4500 20231108120933.0 231108b ||||| |||| 00| 0 eng d 0006-8101 Edson-Chaves, Bruno The Ligule in Poaceae : a Historical and Evolutionary Review (Journal Article) New York :Springer Science ,2022 19-58p. The Botanical Review , Volume 89: Number 1, March 2023 ***______{For Hard Copy, Please visit Library.}________*** Abstract: Ligules are classified, predominantly, on their position and morphology, which are still without a consensus as to their nature and diversity in an evolutionary context in Poaceae. Based on a broad review of this structure, we have identified five hypotheses for the definition of ligules, originating between the years 1800 and 1834; some of these hypotheses are still valid today. Our results also demonstrate that 95.28% of the family representatives have homoligulate ventral ligules and 1.75% have heteroligulate ventral ligules, with Panicoideae being the subfamily with the greatest morphological diversity of ligules. Dorsal and culm leaf ligules occur mainly in Puelioideae and Bambusoideae (except in Olyreae), and may occasionally occur in Pooideae, Panicoideae and Chloridoideae. Although homoligulate and ciliate ventral ligules are ancestral states in the Poaceae, several reversals occurred within the subfamilies so that the eciliate membrane type is more common (especially in the BOP clade). Ancestral State Reconstruction| Gramineae| Leaf Base| Monocotyledons| Vegetative Morphology M. da Silva, Otávio Luis | Clark, Lynn G. | Melo-de-Pinna, Gladys Flávia de A. https://doi.org/10.1007/s12229-022-09285-3 PER 0 0 0 0 RIEBPL RIEBPL 2023-11-08 0 2023-11-08 00:00:00 2023-11-08 PER 44810 44809