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Journal article
Phylogenomics and the rise of the angiosperms
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods1,2. A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance. So far, the angiosperm tree of life has been determined primarily by means of analyses of the plastid genome3,4. Many studies have drawn on...Zuntini, Alexandre R. ; Carruthers, Tom ; Maurin, Olivier ; Bailey, Paul C. ; Leempoel, Kevin …
Plant evolution, Angiosperms, Phylogenetics, Speciation, and Phylogenomics
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Journal article
Palynotaxonomy of Centauropsis (Compositae, Vernonieae) an endemic genus from Madagascar.
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Journal article
Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats.
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Journal article
Envisaging a global infrastructure to exploit the potential of digitised collections.
Tens of millions of images from biological collections have become available online over the last two decades. In parallel, there has been a dramatic increase in the capabilities of image analysis technologies, especially those involving machine learning and computer vision. While image analysis has become mainstream in consumer applications, it... -
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Journal article
A new classification for Lipocarpha and Volkiella as infrageneric taxa of Cyperus s.l. (Cypereae, Cyperoideae, Cyperaceae): insights from species tree reconstruction supplemented with morphological and floral developmental data.
Recent molecular phylogenetic analyses showed that Lipocarpha and Volkiella are nested in a paraphyletic Cyperus s.s. and therefore should be viewed as part of a broadly circumscribed genus Cyperus (Cyperaceae). In this paper, molecular phylogenetic analyses of Lipocarpha and Volkiella based on nuclear ribosomal ETS1f and plastid rpl32-trnL and trnH-psbA...Bauters, Kenneth ; Larridon, Isabel ; Reynders, Marc ; Asselman, Pieter ; Vrijdaghs, Alexander …
Volkiella, Lipocarpha, Plant morphology, Classification, Floral development, and Cyperus
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Journal article
Bulbostylis albidostricta (Abildgaardieae, Cyperaceae): a new sedge species from Angola.
Bulbostylis albidostricta Veltjen & Goetgh. is presented as new species of Bulbostylis (Cyperaceae) from Angola. It is a small, elegant sedge species characterised by a slender creeping rhizome, a single terminal spikelet, glumes with a translucent margin and white velate nutlets. The species is described and illustrated, and differences with...Veltjen, Emily ; Browning, Jane ; Goetghebeur, Paul ; Larridon, Isabel
Cyperaceae, New species, Angola, and Bulbostylis albidostricta
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Journal article
The genera of Cyperaceae of Madagascar.
– The rise of DNA sequencing in systematics has brought more understanding of the Cyperaceae family worldwide. Through these studies, it has been possible to delineate major clades and classify its species into subfamilies, tribes, and genera. Today, we have a good understanding of the species diversity and geographic distribution...Rasaminirina, Fitiavana ; Larridon, Isabel
Cyperaceae, Madagascar, Taxonomy, Genera, and Identification
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Journal article
A Taxonomically-verified and Vouchered Checklist of the Vascular Plants of the Republic of Guinea.
The Checklist of the Vascular Plants of the Republic of Guinea (CVPRG) is a specimen-based, expert-validated knowledge product, which provides a concise synthesis and overview of current knowledge on 3901 vascular plant species documented from Guinea (Conakry), West Africa, including their accepted names and synonyms, as well as their distribution... -
Book chapter
Cornaceae.
Larridon, Isabel
Descriptors, Geographical distribution, Cornaceae, and Identification
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Book chapter
Hydrangeaceae.
Larridon, Isabel
Hydrangeaceae, Descriptors, Identification, and Geographical distribution
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Journal article
A taxonomic revision of the ecologically important Ochna holstii (Ochnaceae) complex using molecular and morphological data.
– and its allies represent an ecologically important group in a variety of lowland to montane habitats in tropical eastern and southern Africa. Identifying and delimiting species within this group has proved challenging due to a lack of variation in morphological characters. We combine genomic-scale data of multiple accessions per... -
Journal article
Reassessment of morphological species delimitations in the Cyperus margaritaceus-niveus complex using morphometrics.
– The complex is a group of ten tropical species from sub-Saharan Africa and Madagascar: , , , , , , , , , and . They are characterised by a capitate head of white-yellow spikelets and modified culm bases and recent molecular analysis puts them in a distinct clade....Xanthos, Martin ; Mayo, Simon J. ; Larridon, Isabel
Species complex, Taxonomy, Morphometrics, Cyperaceae, and Cyperus margaritaceus-niveus
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Journal article
Phylogenomics sheds new light on the drivers behind a long‐lasting systematic riddle: the figwort family Scrophulariaceae.
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Journal article
The phylogeny and global biogeography of Primulaceae based on high-throughput DNA sequence data.
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Journal article
Addressing inconsistencies in Cyperaceae and Juncaceae taxonomy: Comment on Brožová et al. (2022).
Elliott, Tammy L. ; Larridon, Isabel ; Barrett, Russell L. ; Bruhl, Jeremy J. ; Costa, Suzana M. …
Plant systematics, Classification, Cyperaceae, Taxonomy, Juncaceae, and Molecular phylogenetics
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Journal article
Genetic patterns of Magnolia in the Lesser Antilles: Stepwise colonisation leading to highly inbred island ‘populations’.
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Journal article
Diversity and Taxonomy of Cyperus (Cyperaceae) in the Central-West Region of Brazil.
A taxonomic study of Cyperus L. (Cyperaceae) in the Central-West region of Brazil is presented. We examined more than 1300 herbarium specimens. Many of the species were also studied in the field. Our results recognize 59 species of Cyperus in the Central-West of Brazil, including three species endemic to the... -
Journal article
Genetic patterns of Magnolia in the Lesser Antilles: Stepwise colonisation leading to highly inbred island ‘populations’.
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Journal article
Chromosome size matters: genome evolution in the cyperid clade.
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Journal article
A monograph of the African and Madagascan species of Cyperus sect. Incurvi (Cyperaceae).
sect. (Cyperaceae) contains 31 species worldwide, with important continental radiations in Australasia, Tropical Africa and Madagascar, and the Neotropics. Here, a monograph of the African and Madagascan species of sect. is presented, including descriptions, illustrations, synonymy, notes on habitat and ecology, geographic distribution ranges and conservation assessments. Our results identify...Griffiths, Megan ; Ralimanana, Hélène ; Rakotonasolo, Franck ; Larridon, Isabel
Cyperus, Conservation, Madagascar, Lectotypification, Cyperaceae, Taxonomy, and Africa
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Journal article
Piloting development of species conservation action plans in Guinea.
Conservation action plans need to be devised and implemented if we are to reduce the extinction risk faced by globally threatened plants. However, most plant species categorized as threatened globally on the IUCN Red List lack conservation action plans. In West Africa, Guinea is one of the most diverse countries... -
Journal article
A linear classification of Cyperaceae.
This paper provides a linear classification of two subfamilies, 24 tribes, 10 subtribes and 95 genera of the monocot family Cyperaceae (Poales), based on a stable phylogenetic framework resulting from years of morphological, molecular phylogenetic and phylogenomic studies. The family includes c. 5687 species. The most species-rich tribes are the...Larridon, Isabel
Herbaria, Cyperaceae, Systematics, Phylogenetic hypotheses, and Taxonomy
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Journal article
Comparison of Magnoliaceae Plastomes: Adding Neotropical Magnolia to the Discussion.
Chloroplast genomes are considered to be highly conserved. Nevertheless, differences in their sequences are an important source of phylogenetically informative data. Chloroplast genomes are increasingly applied in evolutionary studies of angiosperms, including Magnoliaceae. Recent studies have focused on resolving the previously debated classification of the family using a phylogenomic approach... -
Journal article
Plastid phylogenomics of the Sansevieria Clade of Dracaena (Asparagaceae) resolves a recent radiation.
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Journal article
A molecular phylogenetic study of African members of tribe Hypolytreae (Mapanioideae, Cyperaceae).
Mapanoioideae are one of two subfamilies of Cyperaceae and consist of 186 species. Molecular phylogenetic relationships in subfamily Cyperoideae have recently been studied well, whereas evolutionary relationships in Mapanioideae remain little known. Subfamily Mapanioideae include two tribes. This study focuses on Hypolytreae, which is represented by three genera in Africa...Mesterházy, Attila ; Kim, Changkyun ; Cabezas, Francesco ; Verloove, Filip ; Larridon, Isabel
Principina, Africa, Hypolytrum, Sedges, Systematics, Mapania, and Molecular phylogeny
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Journal article
Phylogenetics of Ochna (Ochnaceae) and a new infrageneric classification.
Advances in high-throughput DNA sequencing are allowing faster and more affordable generation of molecular phylogenetic trees for many organisms. However, resolving relationships at species level is still challenging, particularly for taxonomically difficult groups. Until recently, the classification of Ochna had been based only on morphological data. Here, we present the...Shah, Toral ; Mashimba, Fandey H. ; Suleiman, Haji O. ; Mbailwa, Yahya S ; Schneider, Julio V …
Systematics, Style branching, Ochna, Phylogenomics, Anther dehiscence, Taxonomic revision, and HybSeq
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Journal article
Spicoid morphology of Mapanioideae (Cyperaceae): an evolutionary perspective.
Cyperaceae subfamily Mapanioideae have reproductive units called spicoids, which are interpreted alternatively as flowers or partial inflorescence, and little is known about morphological variation of spicoids from an evolutionary perspective. Combining morphological and evolutionary analyses, we aimed to assess variation in spicoid morphology and its evolutionary significance. Spicoid morphology of...Monteiro, Mariana M. ; Demarco, Diego ; Larridon, Isabel ; Prychid, Christina J. ; Prenner, Gerhard
Mapaniid, Chrysitricheae, Hypolytreae, Cyperaceae, Ancestral reconstruction, and Mapanioideae
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Journal article
Effect of the landscape on functional and spatial connectivity in Magnolia cubensis (Magnoliaceae) in two mountain massifs of Cuba.
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Journal article
A key to the species of Keetia (Rubiaceae - Vanguerieae) in West Africa, with three new, threatened species from Guinea and Ivory Coast.
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Journal article
Joining forces in Ochnaceae phylogenomics: a tale of two targeted sequencing probe kits
Shah, Toral ; Schneider, Julio V. ; Zizka, Georg ; Maurin, Olivier ; Baker, William …
Coalescence, Custom , Universal, Probe kit , Maximum likelihood, Phylogenetic informativeness , and Missing data
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Journal article
Kindia (Pavetteae, Rubiaceae), a new cliff-dwelling genus with chemically profiled colleter exudate from Mt Gangan, Republic of Guinea.
A new genus (Pavetteae, Rubiaceae) is described with a single species, , based on collections made in 2016 during botanical exploration of Mt Gangan, Kindia, Republic of Guinea in West Africa. The Mt Gangan area is known for its many endemic species including the only native non-neotropical Bromeliaceae . is...Cheek, Martin ; Magassouba, Sékou ; Howes, Melanie-Jayne R. ; Doré, Tokpa ; Doumbouya, Saïdou …
Conservation, Rubiaceae, Tropical Important Plant Areas, Cliff-dwelling, Epilithic, and Guinea-conakry
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Journal article
Targeted sequencing supports morphology and embryo features in resolving the classification of Cyperaceae tribe Fuireneae s.l.
Molecular phylogenetic studies based on Sanger sequences have shown that Cyperaceae tribe Fuireneae s.l. is paraphyletic. However, taxonomic sampling in these studies has been poor, topologies have been inconsistent, and support for the backbone of trees has been weak. Moreover, uncertainty still surrounds the morphological limits of Schoenoplectiella, a genus... -
Journal article
Delimiting the genera of the Ficinia Clade (Cypereae, Cyperaceae) based on molecular phylogenetic data
Generic delimitations in the Ficinia Clade of tribe Cypereae are revisited. In particular, we aim to establish the placement of annual species currently included in Isolepis of which the phylogenetic position is uncertain. Phylogenetic inference is based on two nuclear markers (ETS, ITS) and five plastid markers (the genes matK,...Muasya, A. Muthama ; Larridon, Isabel
Plant Science, Biodiversity, Evolutionary Studies, and Research article
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Journal article
A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles
Phylogenetic studies of Carex L. (Cyperaceae) have consistently demonstrated that most subgenera and sections are para‐ or polyphyletic. Yet taxonomists continue to use subgenera and sections in Carex classification. Why? The Global Carex Group here takes the position that the historical and continued use of subgenera and sections serves to...Roalson, Eric H. ; Jiménez‐Mejías, Pedro ; Hipp, Andrew L. ; Benítez‐Benítez, Carmen ; Bruederle, Leo P. …
sections, subgenera, classification, clades, and Carex
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Journal article
The evolutionary history of sedges (Cyperaceae) in Madagascar
Aim Madagascar is renowned for its unparalleled biodiversity and endemism. With many ecosystems under threat, research is urgently needed on its unique plant diversity. This applies both to Madagascar's forests and treeless vegetation types. Sedges (Cyperaceae) are among the top 10 species‐richest angiosperm families in Madagascar (310 native species, 38%... -
Journal article
Resolving generic limits in Cyperaceae tribe Abildgaardieae using targeted sequencing
Morphological characterizations of genera in Cyperaceae tribe Abildgaardieae have been highly problematic and the subject of much debate. Earlier molecular phylogenetic studies based on Sanger sequencing and a limited sampling have indicated that several generic circumscriptions are not monophyletic. Here, we provide the first phylogenetic hypothesis for Abildgaardieae using targeted...Larridon, Isabel ; Zuntini, Alexandre R. ; Barrett, Russell L. ; Wilson, Karen L. ; Bruhl, Jeremy J. …
Fimbristylis, C4 photosynthesis, generic circumscription, Bulbostylis, and Angiosperms353
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Journal article
Combining the small South American genus Androtrichum into Cyperus (Cyperaceae)
Background and aims – Molecular phylogenetic studies have provided a clearer understanding of the complex relationships within the family Cyperaceae. These studies have consistently shown that 12 allied genera are nested in the genus Cyperus. However, early Sanger sequencing-based phylogenies that included the two species of the small South American...Pereira-Silva, Luciana ; Trevisan, Rafael ; Rodrigues, Ana Claudia ; Larridon, Isabel
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Journal article
What drives diversification in a pantropical plant lineage with extraordinary capacity for long‐distance dispersal and colonization?
Aim Colonization of new areas may entail shifts in diversification rates linked to biogeographical movement (dispersification), which may involve niche evolution if species were not exapted to new environments. Scleria (Cyperaceae) includes c. 250 species and has a pantropical distribution suggesting an extraordinary capacity for long‐distance dispersal and colonization. We...Larridon, Isabel ; Galán Díaz, Javier ; Bauters, Kenneth ; Escudero, Marcial
niche evolution, dispersification, biogeography, ancestral range estimation , Cyperaceae, and nutrushes
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Journal article
Introgression across evolutionary scales suggests reticulation contributes to Amazonian tree diversity
Hybridisation has the potential to generate or homogenize biodiversity and is a particularly common phenomenon in plants, with an estimated 25% of plant species undergoing inter‐specific gene flow. However, hybridisation in Amazonia’s megadiverse tree flora was assumed to be extremely rare despite extensive sympatry between closely related species, and its... -
Journal article
Population structure and genetic diversity of Magnolia cubensis subsp. acunae (Magnoliaceae): effects of habitat fragmentation and implications for conservation
Abstract Genetic data on threatened plant populations can facilitate the development of adequate conservation strategies to reduce extinction risk. Such data are particularly important for species affected by habitat fragmentation such as Magnolia cubensis subsp. acunae, a Critically Endangered magnolia subspecies endemic to Cuba. Using genetic data from 67 individuals,...Hernández, Majela ; Palmarola, Alejandro ; Veltjen, Emily ; Asselman, Pieter ; Testé, Ernesto …
Nature and Landscape Conservation and Ecology, Evolution, Behavior and Systematics
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Journal article
A revision of the African genus Mesanthemum (Eriocaulaceae)
Mesanthemum is a genus comprising 16 species in the family Eriocaulaceae and is native to Africa and Madagascar. Eriocaulaceae are characterised by a basal tuft or rosette of narrow leaves and small flowers in heads. Mesanthemum can be recognised by diplostemonous flowers and fused glandular pistillate petals. While most Mesanthemum...Liang, Yuxi ; Phillips, Sylvia M. ; Cheek, Martin ; Larridon, Isabel
Africa, molecular phylogenetics, Madagascar, lectotypifications, new species, SEM seed images, and taxonomy
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Journal article
Tackling Rapid Radiations With Targeted Sequencing
In phylogenetic studies across angiosperms, at various taxonomic levels, polytomies have persisted despite efforts to resolve them by increasing sampling of taxa and loci. The large amount of genomic data now available and statistical tools to analyze them provide unprecedented power for phylogenetic inference. Targeted sequencing has emerged as a... -
Journal article
Three new combinations in African Cyperus (Cyperaceae)
Background – During the past decade several molecular phylogenetic studies tackled the complex relationships within tribe Cypereae. Based on these studies, previously accepted segregate genera such as Pycreus were sunk into the genus Cyperus. Recently, while revising the West African species of Cyperus, three taxa previously placed in Pycreus were...Larridon, Isabel ; Reynders, Marc
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Journal article
Molecular phylogeny of the large South American genus Eriosyce (Notocacteae, Cactaceae): Generic delimitation and proposed changes in infrageneric and species ranks
Eriosyce is one of most species‐rich genera within Notocacteae (Cactaceae) harboring a variety of stem and flower morphologies, and fruits with basal abscission. The lack of a well‐sampled molecular phylogeny contributes to the current taxonomic instability of the genus, where its circumscription and infrageneric classification has been questioned. Specimens of...Guerrero, Pablo C. ; Walter, Helmut E. ; Arroyo, Mary T. K. ; Peña, Carol M. ; Tamburrino, Italo …
Plant Science and Ecology, Evolution, Behavior and Systematics
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Journal article
New combinations and a new name for including Nemum species in Bulbostylis (Abildgaardieae: Cyperaceae)
A recent study included the genus Nemum into Bulbostylis. The combinations made for Nemum spadiceum and Nemum megastachyum resulted in illegitimate names. Here, the epithet of the homotypic name Scirpus briziformis is used to make nomenclaturally correct combinations for both subspecies of Nemum spadiceum in Bulbostylis. Furthermore, Bulbostylis brunneoacuminata, nomen...Larridon, Isabel ; Goetghebeur, Paul ; Roalson, Eric
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Journal article
A revision of Scleria (Cyperaceae) in Madagascar
A taxonomic revision of the genus Scleria (Cyperoideae, Cyperaceae) in Madagascar is presented. Herbarium specimens have been examined and 422 identified to species level. Our results recognise 25 species of Scleria from Madagascar, plus an additional heterotypic variety. Eight species are endemic to Madagascar, two are near endemic, eight taxa...Galán Díaz, J. ; Bauters, K. ; Rabarivola, L. ; Xanthos, Martin ; Goetghebeur, P. …
conservation, endemic species, Madagascar, revision, identification key, Cyperaceae, and Scleria
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Journal article
Revision of the Afro-Madagascan genus Costularia (Schoeneae, Cyperaceae): infrageneric relationships and species delimitation
A recent molecular phylogenetic study revealed four distinct evolutionary lineages in the genus Costularia s.l. (Schoeneae, Cyperaceae, Poales). Two lineages are part of the Oreobolus clade of tribe Schoeneae: the first being a much-reduced genus Costularia s.s., and the second a lineage endemic to New Caledonia for which a new...Larridon, Isabel ; Rabarivola, Linah ; Xanthos, Martin ; Muasya, A
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Journal article
Response of xerophytic plants to glacial cycles in southern South America
Quaternary glaciations strongly affected the distribution of species from arid and semi-arid environments, as temperature drops were accompanied by strong fluctuations in rainfall. In this study, we examined the response of xerophytic species to glacial cycles, determining the genetic patterns and climatic niche of Echinopsis chiloensis var. chiloensis, an endemic...Pérez, Fernanda ; Ossa, Carmen ; Montenegro, Paz ; Larridon, Isabel
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Journal article
Crosslandia setifolia is a partly monoecious species of Fimbristylis (Abildgaardieae: Cyperaceae)
While the limits of Fimbristylis Vahl (1805: 285) are contentious (Goetghebeur & Coudijzer 1984, Gordon-Gray 1971, Lye 1971, 1973), particularly with regard to the inclusion of Abildgaardia Vahl (1805: 296) within Fimbristylis , all current data support the derivation of Crosslandia W.Fitzg. (1906: 9) from within Fimbristylis (Ghamkhar et al....Roalson, Eric ; Barrett, Russell ; Wilson, Karen ; Bruhl, Jeremy ; Larridon, Isabel
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Journal article
A taxonomic study of Scleria subgenus Hypoporum: synonymy, typification and a new identification key
For Scleria subgen. Hypoporum , 214 species and infraspecific names were published since the first publication of the name Scleria. These names represent 76 accepted taxa, representing 72 species of Scleria subgen. Hypoporum . Herbarium material of all recognised species was studied, including the type material if available. Synonymy and...Bauters, K ; Larridon, Isabel ; Goetghebeur, P
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Journal article
A broader circumscription of Bulbostylis including Nemum (Abildgaardieae: Cyperaceae)
Phylogenetic hypotheses and morphological characterizations of genera in the Abildgaardieae have suggested that current generic circumscriptions are not monophyletic. We here provide an updated phylogenetic hypothesis of the Abildgaardieae using nrDNA ITS sequences that continues to support the derivation of Nemum from within the Bulbostylis lineage. We make the nomenclatural...Roalson, Eric ; Prata, Ana ; Mesterhazy, Attila ; Chase, Mark ; Simpson, David …
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Journal article
Revision and new species of the African genus Mischogyne (Annonaceae)
Mischogyne (Annonaceae, tribe Monodoreae) is a genus of small- to medium-sized tropical trees and shrubs. It is characterised by a combination of: (1) stamens and carpels on a more or less extended torus; (2) carpels divergent from each other at the apex of the torus above the anthers; (3) anthers...Gosline, George ; Marshall, Andrew R. ; Larridon, Isabel
Plant Science and Ecology, Evolution, Behavior and Systematics