Two new combinations in the South Sudanese flora

Darbyshire, Iain; Kordofani, Maha

doi:10.1007/s12225-011-9316-6

Cited by 5 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We confirm that the range of G. hirtus is not restricted to Benin and DR Congo, but the species is distributed in all sub-Saharan Africa and seems to be a common weed in many regions according to the collector’s observations. Glinus hirtus has not been previously reported for almost any Sub-Saharan countries (e.g., Adamson 1961 ; Jeffrey 1961 ; Berhaut 1967 ; Gonçalves 1970 , 1978 ; Sita and Moutsambote 1988 ; Barry and Celles 1991 ; Mapaura and Timberlake 2004 ; Phiri 2005 ; Setshogo 2005 ; Hassan et al 2005 ; Sosef et al 2006 ; Germishuizen et al 2006 ; Darbyshire et al 2015 ). In some West African checklists and manuals it was confused with the American G. radiatus ( Berhaut 1967 , 1979 ; Boudet et al 1986 ; Akoegninou et al 2006 ; Lisowski 2009 ; Thiombiano et al 2012 ; Brundu and Camarda 2013 ; Schmidt et al 2017 ).…”

Section: Discussionmentioning

confidence: 89%

Evolutionary relationships, biogeography and morphological characters of Glinus (Molluginaceae), with special emphasis on the genus composition in Sub-Saharan Africa

Sukhorukov¹,

Sennikov²,

Veranso‐Libalah³

et al. 2021

View full text Add to dashboard Cite

Glinus is a small genus of Molluginaceae with 8–10 species mostly distributed in the tropics of the World. Its composition and evolutionary relationships were poorly studied. A new molecular phylogeny constructed here using nuclear (ITS) and chloroplast (rbcL, trnK-matK) markers confirmed the monophyly of the genus. Based on ITS analysis, the following well-supported lineages are present within Glinus: the G. bainesii lineage is recovered as sister to the remainder of the genus followed by G. oppositifolius. Three other clades are: G. hirtus with G. orygioides; G. radiatus and G. lotoides; the latter is represented by a sample from North America, and G. zambesiacus as sister to G. setiflorus + G. lotoides + G. dictamnoides. On the plastid gene tree, G. bainesii + G. oppositifolius form a sister clade to all other Glinus species. The next clade is formed by G. hirtus and G. orygioides followed by G. radiatus plus an American sample of G. lotoides. The next branch comprises G. setiflorus as sister to G. zambesiacus + G. lotoides + G. dictamnoides. Glinus seems to have originated from Africa around the Late Eocene or Early Miocene, with further radiations to Australia and the Americas during the Late Miocene or Late Pliocene. Compared with the previous limited character set used for the diagnostics, we have found ten new morphological and carpological traits distinguishing Glinus members. In both trees based on nuclear and plastid datasets, the major phylogenetic clades cannot be characterized by the peculiar morphological characters. Many shared character states leading to their contrasting pattern in the multivariate analysis model are interpreted as a high homoplasy in the phylogenetically distant species. We paid special attention to the composition of the genus in Sub-Saharan Africa, a region with the greatest species diversity. Our results provide new insight into the taxonomy of Glinus in this region. Glinus lotoides var. virens accepted in many previous works is a synonym of G. dictamnoides that is closely related to G. lotoides based on molecular analysis and morphological characters. The status of the American populations of G. lotoides needs further investigation due to different characters of the specimens from the Old and the New World. Many specimens previously identified as G. lotoides var. virens and as the intermediates G. lotoides × G. oppositifolius belong to G. zambesiacussp. nov. and G. hirtuscomb. nov. (≡ Mollugo hirta); the latter species is resurrected from synonymy after 200 years of unacceptance. In some African treatments, G. hirtus was known under the invalidly published name G. dahomensis. Glinus zambesiacus is distributed in the southern and eastern parts of tropical Africa, and G. hirtus previously assumed to be endemic to West Africa is indeed a species with a wide distribution across the tropical part of the continent. Glinus microphyllus previously accepted as endemic to West Tropical Africa together with other new synonyms (G. oppositifolius var. lanatus, G. herniarioides, Wycliffea rotundifolia) is considered here as G. oppositifolius var. keenaniicomb. nov. (≡ Mollugo hirta var. keenanii), a variety found across the entire distribution of G. oppositifolius (Australia, Asia, and Africa). The presence of the American G. radiatus in Africa is not confirmed, and all records of this species belong to G. hirtus. The lectotypes of some names (G. dictamnoides, G. herniarioides, Mollugo hirta, M. setiflora, Pharnaceum pentagynum, Wycliffea) as well as a neotype of G. trianthemoides are designated. A new key to the identification of all Glinus species in Sub-Saharan Africa is provided. A checklist is given of all accepted species in this region (G. bainesii, G. hirtus, G. lotoides, G. oppositifolius s.l., G. setiflorus, and G. zambesiacus) with their nomenclature, morphological description and geographical distribution.

show abstract

Section: Discussionmentioning

confidence: 89%

Evolutionary relationships, biogeography and morphological characters of Glinus (Molluginaceae), with special emphasis on the genus composition in Sub-Saharan Africa

Sukhorukov¹,

Sennikov²,

Veranso‐Libalah³

et al. 2021

View full text Add to dashboard Cite

show abstract

“…(These eight volumes were the only volumes accessible during the COVID‐19 lockdown in 2020–2021). In addition, the taxa contained in the four volumes of the flora of Somalia (Thulin, 1993, 1995, 1999, 2006) and the taxa of plants in Sudan and South Sudan (Darbyshire et al., 2015) were added to the floristic checklist and used to identify regional CWR taxa presence.…”

Section: Methodsmentioning

confidence: 99%

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Aldow,

Brehm,

Kordofani

et al. 2023

Crop Science

View full text Add to dashboard Cite

Crop wild relatives (CWR) are an important source of genetic diversity useful for crop improvement. This study was conducted to create both a checklist and priority inventory of CWR in Northeast Africa. A partial CWR regional checklist was obtained by combining the floras of Djibouti, Ethiopia and Eritrea, Somalia, South Sudan, and Sudan for priority crop genera. It includes 1,020 taxa belonging to 39 families and 130 genera, about 80% of these taxa are native. The families with the highest number of CWR were the Poaceae (334) and Fabaceae (202). The checklist was then prioritized based on the social and economic value of the related crops using the Food and Agriculture Organization Corporate Statistical Database (FAOSTAT), and the potential use of CWR for crop improvement using the crop gene pool or taxon group concepts. These criteria were applied to the checklist via a serial method to generate a prioritized inventory of 97 CWR taxa belonging to 19 families and 44 genera. Forty‐three percent of these taxa occur in more than two countries and additionally 32% in Eritrea and Ethiopia, 18% in Sudan and South Sudan and 7% in Somalia. For crop improvement, 20% of the taxa have confirmed uses, 23% have recorded potential uses, and 28% have both confirmed and potential uses. This prioritized list includes important CWR taxa related to regionally important food crops such as sorghum and teff, as well as providing a foundation for further conservation studies by conservationists and breeders in this region and worldwide.This article is protected by copyright. All rights reserved

show abstract

“…For survey of types and stocking of tree species, we randomly distributed 97 circular sample plots (0.1 ha) within the forest. We identified the collected plant specimens to the species level in the field using standard references for the Sudan's flora [6] and taxonomic information from [7]. We updated families, genera and species according to the classification of the orders and families of angiosperms adopted in Angiosperm Phylogeny Group "APG IV" [8] and [9].…”

Section: Species Composition and Growing Stock Inventorymentioning

confidence: 99%

Exploring Trees Diversity and Ecological Value of Mountain Forests in the Blue Nile Region of Sudan

Dafa-Alla,

Gibreel,

Siddig

et al. 2024

OJE

View full text Add to dashboard Cite

We carried out this research at Abu-Gaddaf Natural Forest Reserve (ANFR) which is located east of Blue Nile River, in Blue Nile State, Sudan. It aims at exploring tree composition assessing their diversity indices, and ecological importance values. For survey of types and estimation of density of tree species in the forest, we randomly distributed 97 circular sample plots (0.1 hectare (ha)). In each sample plot we identified all trees to the species level, recorded their frequencies and computed species diversity and importance value indices (IVI). A total of 13 tree species, which belong to 12 genera and nine families, were identified in the tree layer of the forest. Mean tree density in ANFR was 116 trees/ha, composed mainly of Boswellia papyrifera (Del.) Hochst. ( 48), followed by Combretum hartmannianu ( 19) and Lannea fruticosa (18). Fabaceae was the most common family followed by Combretaceae and Malvaceae. B. papyrifera Delile Hochst was the most abundant while Acacia seyal was the least abundant species. Species richness (R = 1.71), evenness (E = 0.69), dominance (0.24) indices and Simpson's Index of Diversity (D' = 0.76) suggest a moderate diversity, moderate numbers of individuals in each species and a moderate community stability. The research provides empirical results on diversity and ecological importance value of species, signifies the urging need to safeguard threatened species and to prioritize them for conservation, as well as the need to promote management of abundant species to provide multiple forest ecosystem services.

show abstract

Two new combinations in the South Sudanese flora

Cited by 5 publications

References 2 publications

Evolutionary relationships, biogeography and morphological characters of Glinus (Molluginaceae), with special emphasis on the genus composition in Sub-Saharan Africa

Evolutionary relationships, biogeography and morphological characters of Glinus (Molluginaceae), with special emphasis on the genus composition in Sub-Saharan Africa

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Exploring Trees Diversity and Ecological Value of Mountain Forests in the Blue Nile Region of Sudan

Contact Info

Product

Resources

About