scholarly journals Taxonomic revision of Saudi Arabian Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) with one new variety and four new combinations

2018 ◽  
Vol 25 (1) ◽  
pp. 19-43 ◽  
Author(s):  
Dhafer Ahmed Alzahrani ◽  
Enas Jameel Albokhari
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Fruit Shape ◽  
New Combinations ◽  
New Variety ◽  
Distribution Maps ◽  
Flower Traits ◽  
Saline Habitats ◽  
Plant Taxon

The genera Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) present different morphological characters, viz. growth habit, leaf features, flower traits and fruit shape, and have a high diversity of species in Africa, Australia and Asia. Six species of Tetraena [T. alba (L.f.) Beier & Thulin, T. coccinea (L) Beier & Thulin, T. decumbens (Delile) Beier & Thulin, T. hamiensis (Schwein f.) Beier & Thulin, T. propinqua (Decne.) Ghaz. & Osborne and T. simplex (L.) Beier & Thulin], and one species of Zygophyllum (Z. fabago L.) have been identified in Saudi Arabia, most of which grow in sandy soils and saline habitats as shrubs and herbs. One new endemic variety (T. alba var. arabica Alzahrani & Albokhari) along with four new combinations [T. alba var. amblyocarpa (Baker) Alzahrani & Albokhari, T. hamiensis var. qatarensis (Hadidi ex Beier & Thulin) Alzahrani & Albokhari, T. hamiensis var. mandavillei (Hadidi ex Beier & Thulin) Alzahrnai & Albokhari, and T. propinqua subsp. migahidii (Hadidi ex Beier & Thulin) Alzahrani & Albokhari] are proposed. Descriptions, illustrations, distribution maps and a key for identification of the taxa are presented. Conservation status has been proposed for the new variety and combinations.Bangladesh J. Plant Taxon. 25(1): 19-43, 2018 (June)

scholarly journals Born in the Mediterranean: Comprehensive Taxonomic Revision of Biscutella ser. Biscutella (Brassicaceae) Based on Morphological and Phylogenetic Data

2020 ◽  
Vol 105 (2) ◽  
pp. 195-231
Author(s):  
Alicia Vicente ◽  
Mª Ángeles Alonso ◽  
Manuel B. Crespo
Keyword(s):  
Sequence Data ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Morphological Plasticity ◽  
Morphological Characters ◽  
Distribution Maps ◽  
Phylogenetic Data ◽  
The Mediterranean ◽  
Floral Characters ◽  
The Mediterranean Basin

Biscutella L. ser. Biscutella (= Biscutella ser. Lyratae Malin.) comprises mostly annual or short-lived perennial plants occurring in the Mediterranean basin and the Middle East, which exhibit some diagnostic floral features. Taxa in the series have considerable morphological plasticity, which is not well correlated with clear geographic or ecologic patterns. Traditional taxonomic accounts have focused on a number of vegetative and floral characters that have proved to be highly variable, a fact that contributed to taxonomic inflation mostly in northern Africa. A detailed study and re-evaluation of morphological characters, together with recent phylogenetic data based on concatenation of two plastid and one nuclear region sequence data, yielded the basis for a taxonomic reappraisal of the series. In this respect, a new comprehensive integrative taxonomic arrangement for Biscutella ser. Biscutella is presented in which 10 taxa are accepted, namely seven species and three additional varieties. The name B. eriocarpa DC. is reinterpreted and suggested to include the highest morphological variation found in northern Morocco. Its treatment here accepts two varieties, one of which is described as new (B. eriocarpa var. riphaea A. Vicente, M. Á. Alonso & M. B. Crespo). In addition, the circumscriptions of several species, such as B. boetica Boiss. & Reut., B. didyma L., B. lyrata L., and B. maritima Ten., are revisited. Nomenclatural types, synonymy, brief descriptions, cytogenetic data, conservation status, distribution maps, and identification keys are included for the accepted taxa, with seven lectotypes and one epitype being designated here.

scholarly journals Revision of the African species of Monanthotaxis (Annonaceae)

2021 ◽  
Author(s):  
P.H. Hoekstra ◽  
J.J. Wieringa ◽  
P.J.M. Maas ◽  
L.W. Chatrou
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Floral Biology ◽  
New Combinations ◽  
Rain Forests ◽  
Tropical Africa ◽  
African Species ◽  
Distribution Maps ◽  
Vernacular Names ◽  
History Of

This taxonomic revision of the continental African species of Monanthotaxis (Annonaceae) includes 79 species and one variety. Thirteen new species (M. aestuaria, M. bidaultii, M. confusa, M. glabra, M. hexamera, M. mcphersonii, M. quasilanceolata, M. sterilis, M. submontana, M. suffruticosa, M. ursus, M. vulcanica and M. wieringae) are described and 5 new combinations (M. biglandulosa, M. kenyensis, M. ochroleuca, M. pynaertii and M. seretii) are made. The genus Monanthotaxis consists of lianas or lianescent shrubs. It occurs throughout forests in tropical Africa and the highest species diversity is found in the Western Central African rain forests. A key for flowering material is provided, just like a synoptic key including 45 characters. Topics included in the revision are the history of the taxonomy of Monanthotaxis, morphology, leaf anatomy, floral biology, distribution and habitat, phylogeny and finally ethnobotany and phytochemistry. Each species is fully described including synonymy, notes on distribution, habitat & ecology, vernacular names, uses and a preliminary IUCN conservation status. Distribution maps are provided for all species, illustrations for 48 species and photographs of 22 species. An index of exsiccatae and an index of the scientific names are included at the end.

scholarly journals Taxonomic revision of Ceropegia sec. Huernia (Asclepiadoideae – Apocynaceae) in Saudi Arabia with four new combinations

2020 ◽  
Author(s):  
Samah Alharbi ◽  
Rahmah Al Qthanin
Keyword(s):  
Saudi Arabia ◽  
Principal Component ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
New Combinations ◽  
Principal Coordinates Analysis ◽  
Distribution Maps ◽  
Principal Coordinates ◽  
Conservation Assessments ◽  
Iucn Criteria

This study provides a taxonomic revision for Ceropegia sec. Huernia in the flora of Saudi Arabia. Forty-eight quantitative and qualitative morphological characters were analysed using principal component analysis (PCA), principal coordinates analysis (PCoA) and the unweighted pairs group using mean average (UPGMA) to separate and help delimit taxa. We proposed to reduce the number of names reported in Saudi Arabia from 11 to four species: C. arabica comb. nov.,C. Khalidbinsultanii comb. nov., C. laevis and C. lodarensis. This study also suggested reducing two of Plowes’ new names to a variety level under C. lodarensis (var. foetida comb. nov. and var. rubrosticta comb. nov.). A key to the species, detailed morphological descriptions, illustrations, distribution maps, ecology, etymology and preliminarily conservation assessments following IUCN criteria are provided.

Taxonomic revision of Leandra sect. Leandra (Melastomataceae, Miconieae)

Phytotaxa ◽  
2016 ◽  
Vol 262 (1) ◽  
pp. 1 ◽  
Author(s):  
MARCELO REGINATO
Keyword(s):  
Geographical Distribution ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
New Combinations ◽  
Phylogenetic Hypothesis ◽  
General Morphology ◽  
Distribution Maps ◽  
History Of ◽  
First Time

A taxonomic monograph of a re-circumscribed Leandra sect. Leandra is presented. The new circumscription is based on a previous phylogenetic hypothesis, and diagnostic morphological characters are discussed. Four new combinations to Leandra are proposed, one from Clidemia (L. capilliflora) and three from Ossaea (L. capitata, L. cogniauxii and L. loligomorpha). Additionally, eight species are treated as synonyms for the first time, and 15 lectotypes are designated. A review of the 17 recognized species, including descriptions, synonymy, illustrations and distribution maps, is provided. This work also includes an overview of general morphology, leaf and flower anatomy, phenology and geographical distribution. Species with a history of taxonomic problems and/or with distinctive morphotypes are further investigated with morphometrics tools.

scholarly journals Taxonomic revision of Ceropegia sect. Huernia (Asclepiadoideae, Apocynaceae) in Saudi Arabia with three new combinations

PhytoKeys ◽  
2021 ◽  
Vol 174 ◽  
pp. 47-80
Author(s):  
Samah A. Alharbi ◽  
Rahmah N. Al-Qthanin
Keyword(s):  
Saudi Arabia ◽  
Principal Component ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
New Combinations ◽  
Principal Coordinates Analysis ◽  
Distribution Maps ◽  
Principal Coordinates ◽  
Conservation Assessments ◽  
Iucn Criteria

This study provides a taxonomic revision for Ceropegia sect. Huernia in the flora of Saudi Arabia. Forty-six quantitative and qualitative morphological characters were analysed using principal component analysis (PCA), principal coordinates analysis (PCoA) and the unweighted pairs group using mean average (UPGMA) to separate and help delimit taxa. We propose to reduce the number of species reported in Saudi Arabia from 11 to four: C. khalidbinsultaniicomb. nov., C. laevis, C. lodarensis and C. macrocarpa. This study also suggested reducing two names to varietal level under C. lodarensis (var. foetidacomb. nov. and var. rubrostictacomb. nov.). A key to the species, detailed morphological descriptions, illustrations, distribution maps, ecology, etymology and preliminary conservation assessments are provided that follow IUCN criteria.

New Findings on Scrophularia sect. Mimulopsis (Scrophulariaceae) from Iran

2019 ◽  
Vol 27 (4) ◽  
pp. 238-247
Author(s):  
Massoud Ranjbar ◽  
Narges Rahchamani
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Conservation Status ◽  
Morphological Characters ◽  
Northern Iran ◽  
Distribution Maps ◽  
New Findings ◽  
Tehran Province ◽  
Micromorphological Characters ◽  
A New Species

Scrophularia dianatnejadii Ranjbar & Rahchamani, a new species from Tehran Province in northern Iran, is described and illustrated. It is closely related to S. amplexicaulis Benth. and shares with it some diagnostic morphological characters such as habit, plant indument, phyllotaxy, and corolla shape and color. Both species are placed in Scrophularia L. sect. Mimulopsis Boiss. Macro- and micromorphological characters of the two are examined and compared. Pollen morphology of these species is investigated using SEM. Detailed descriptions, illustrations, distribution maps, and conservation status of both species are provided.

scholarly journals Co-occurring cryptic species pose challenges for conservation: a case study of the African dwarf crocodile (Osteolaemusspp.) in Cameroon

Oryx ◽  
2014 ◽  
Vol 49 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Nicole L. Smolensky
Keyword(s):  
Cryptic Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Single Species ◽  
Conservation Strategies ◽  
Encounter Rates ◽  
Distribution Maps ◽  
Species Complexes ◽  
Threatened Taxa ◽  
Population Structures

AbstractThe conservation status of threatened taxa may be obfuscated by the detection of cryptic species complexes, in both vertebrate and invertebrate species. African dwarf crocodiles (Osteolaemusspp.) are hunted throughout their range but their conservation status is unknown. Few population assessments have been carried out and there has been a taxonomic revision of the number of species in the genus. The similar morphologies ofOsteolaemus tetraspisandOsteolaemus osbornipose a challenge for conservation in Cameroon, where they are still managed as a single species. Nocturnal spotlight surveys were conducted in three regions during August–November 2010 and December 2011–February 2012 to provide population assessments ofO. tetraspisandO. osborniand raise awareness of the two species in Cameroon. The mean encounter rates ofO. tetraspisandO. osborniwere 1.02 ± SD 1.34 (65 individuals in 39 surveys) and 0.61 ± SD 0.38 (three in four surveys) crocodiles per km, respectively. TheO. tetraspispopulation comprised juveniles predominantly and had a male-biased sex ratio. The fewO. osbornidetected comprised both adults and juveniles. Both species are threatened in Cameroon, based on low encounter rates, young population structures and the threats of habitat loss and hunting pressure. This study provides distribution maps and serves as a baseline to quantify population trends and inform conservation strategies.

A taxonomic revision of the Lichen genus Hypogymnia in Australasia.

Brunonia ◽  
1979 ◽  
Vol 2 (2) ◽  
pp. 175 ◽  
Author(s):  
JA Elix
Keyword(s):  
New Species ◽  
New Zealand ◽  
Taxonomic Revision ◽  
New Combinations ◽  
New Variety ◽  
Two New Species ◽  
Papua New Guinean

The Australian, New Zealand and Papua New Guinean representatives of Hypogymia are reviewed. Photographs, keys and descriptions are given for the 11 species and five varieties. Two new species are described, H. enteromorphoides and H. kosciuskoensis, as well as a new variety, H. subphysodes var. austerodioides and six new combinations are made, namely H. lugubris var. sublugubris, H. lugubris var. compactior, H. pulchrilobata, H. pul- verata, H. tubularis and H. turgidula. Distribution of these taxa is discussed and maps have been provided. The species included in this revision are H. billardieri, H. enteromorphoides, H. kosciuskoensis, H. lugubris, H. mundata, H. pulchrilobata, H. pulverata, H. subphysodes, H. tubularis, H. turgidula and H. vittata.

A taxonomic revision of the Australasian genera Dracophyllum and Richea (Richeeae: Styphelioideae: Ericaceae)

2021 ◽  
Author(s):  
Stephanus Venter
Keyword(s):  
Taxonomic Revision ◽  
New Combinations ◽  
Distribution Maps ◽  
Incertae Sedis ◽  
Species Being

The genus Dracophyllum Labill. is revised, with a total of 61 species being recognised in four subgenera and two species (Dracophyllum minimum F.Muell. and D. strictum Hook.f.) are listed as incertae sedis. The genus Richea R.Br. is reduced to synonymy under Dracophyllum where it is divided into two new subgenera, namely, Dracophyllum subgenus Cystanthe (R.Br.) S.Venter and D. subgenus Richea (R.Br.) S.Venter. Replacement names published here are Dracophyllum laciniatum S.Venter, D. persistentifolium S.Venter and D. tasmanicum S.Venter, and new combinations published here are Dracophyllum alpinum (Menadue) S.Venter, D. continentis (B.L.Burtt) S.Venter, D. desgrazii (Hombr. ex Decne.) S.Venter, D. gunnii (Hook.f.) S.Venter, D. pandanifolia (Hook.f.) S.Venter, D. procerum (F.Muell.) S.Venter, D. sprengelioides (R.Br.) S.Venter and D. victorianum (Menadue) S.Venter. Nomenclature, descriptions, illustrations, photographs and distribution maps are provided for each species and lectotypes are designated where necessary. A key to the subgenera and keys to species within these are provided.

Revision of Asytesta Pascoe, 1865, with comments on the phylogeny of the Indo-Australian crowned weevils (Coleoptera: Curculionidae: Cryptorhynchinae)

Zootaxa ◽  
2012 ◽  
Vol 3462 (1) ◽  
pp. 1 ◽  
Author(s):  
GREGORY P. SETLIFF
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Junior Synonym ◽  
New Combinations ◽  
Monotypic Genus ◽  
Species Status ◽  
Distribution Maps ◽  
Line Drawings ◽  
New Synonyms ◽  
Species Groups

The Indo-Australian crowned weevil genus Asytesta Pascoe, 1865 is revised. Forty-one species are recognized, including18 that are new: A. alexandriae, A. alexriedeli, A. allisoni, A. biakana, A. cheesmanae, A. concolora, A. emarginata, A.fayae, A. frontalis, A. gressitti, A. julieae, A. marginalis, A. morobeana, A. sedlaceki, A. thompsoni, A. tuberculata, A.vivienae, and A. woodlarkiana, new species. One subspecies, A. lugubris bidentata Voss is elevated to species status, A.bidentata Voss, new status. Four species are newly synonymized: A. circulifera Lea, 1928 = A. rata Heller, 1910, A.definita Faust, 1898 = A. humeralis Pascoe, 1865, A. granulifera Lea, 1928 = A. aucta Faust, 1898, and A. setipes Lea,1928 = A. lugubris Heller, 1895 new synonyms. Six new species groups are proposed. Lectotypes are designated for 18species. Two species are transferred from Asytesta to other genera: A. maura Pascoe to Microporopterus Lea and A.ypsilon Heller to Meroleptus Faust, new combinations. A checklist and key for all crowned weevil genera, key to speciesgroups and species of Asytesta, adult habitus illustrations, distribution maps, and line drawings of diagnostic charactersare provided.A phylogeny for the genus based on 82 adult morphological characters (187 states) for 41 ingroup taxa is alsopresented. All genera and species of the crowned weevil group as redefined here (including Cyamomistus Heller,Eudyasmus Pascoe, Glochinorhinus Waterhouse, Nothotragopus Zimmerman, Panopides Pascoe, and Zygara Pascoe),were included in the analysis to test the monophyly of Asytesta. Monophyly of Asytesta was supported only with thesynonymy of the monotypic genus Zygara. Accordingly, Zygara is a new junior synonym of Asytesta and Zygara doriae (Kirsch) is returned to its original combination with Asytesta; A. doriae Kirsch resurrected status.

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