Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
2013, Nordic Journal of Botany
Described and illustrated is Warneckea cordiformis R. D. Stone, an evidently localized endemic of coastal dry forest in Mozambique’s Cabo Delgado Province. In ‘Flora Zambesiaca’ the new species would key to W. sansibarica (Taub.) Jacq.-Fél., from which it is readily distinguished by the much smaller, ovate to cordiform leaves and white, short-pedicellate flowers. Because of its evidently very limited occurrence as well as on-going anthropogenic threats, Warneckea cordiformis is here assessed as ‘Critically Endangered’ (CR) B1a,b(iii) according to IUCN criteria. A key is provided to the Mozambican species of Warneckea.
2017 •
Described and illustrated is Warneckea albiflora R.D. Stone & N.P. Tenza, another localized endemic of coastal dry forest near Quiterajo in Mozambique's Cabo Delgado Province. In Flora Zambesiaca the new species would key to Memecylon sansibaricum Taub. [ ≡ Warneckea sansibarica (Taub.) Jacq.-Fél. ], but is distinguished by its elliptic-lanceolate, attenuate–acuminate leaves and white flowers borne on pedicels 3.5–4 mm long (versus leaves elliptic and rounded to shortly and obtusely acuminate, pedicels 6–15 mm long, and flowers pale blue to deep blue in Warneckea sansibarica). Because of its evidently very limited occurrence as well as ongoing anthropogenic threats, Warneckea albiflora is provisionally assessed as Critically Endangered (CR) B1ab(iii) according to IUCN criteria. A key is provided to the Mozambican species of Warneckea.
South African Journal of Botany
Warneckea parvifolia (Melastomataceae-Olisbeoideae), a new "sand-forest" endemic from northeastern KwaZulu-Natal (South Africa) and southernmost Mozambique, and a phylogenetic analysis of eastern and southern African representatives of W. section Warneckea2013 •
Warneckea populations from “sand-forest” or “sand-thicket” habitats in Tembe Elephant Park, South Africa, and Licuati Forest Reserve in adjacent southern Mozambique were previously thought to be a small-leaved formof W. sousae, which typically includes larger-leaved plants ranging from central Mozambique northward to Tanzania. We examine this hypothesis using molecular and morphological evidence. Maximum-likelihood phylogenetic analysis of combined nrDNA ETS and ITS sequence data failed to resolve W. sousae and the Maputaland populations as an exclusively monophyletic group. Instead, the Kenyan endemic W. mouririifolia was strongly supported as the sister species of W. sousae, and the Maputaland plants were resolved in a separate, strongly supported clade together with populations of an as-yet undetermined Warneckea species from northern Mozambique. A hypothesis of exclusive monophyly for the plants from Tembe and Licuati had moderate support in separate ETS and ITS1 analyses (bootstrap proportions of 88% and 81%, respectively). Statistically significant differences in leaf dimensions and internode length were found between the Maputaland plants and typical W. sousae. We conclude that the populations from Tembe and Licuati represent a distinct species, which we describe as W. parvifolia. The species differs from W. sousae in having shorter internodes (mostly 5–25 mm not 10–60 mm long), smaller leaves (mostly 14–32 × 8–19 mm not 40–76 × 22–52 mm), shorter petioles (mostly 1–1.5 mm not 1.5–6 mm long), smaller flowers (hypanthium 1 × 1.5–1.75 mm not 1.5–2 × 2 mm; calyx lobes 0.5 mm not 0.75 mm long; staminal filaments 3–4 mm not 5 mm long; style 4–5 mm not 9 mm long), and globose fruit (not obovoid). An IUCN conservation status of Endangered (EN) B1a, b(ii, iii) is indicated for W. parvifolia, due to its limited distribution and projected declines in its habitat quality and area of occupancy.
2018 •
Warneckea ngutiensis R. D. Stone sp. nov. (Melastomataceae-Olisbeoideae) is described from near Nguti in SW Region, Cameroon. Unique in section Strychnoides in having only a vestigial staminal oil gland, this rainforest shrub is Critically Endangered due to an oil palm plantation project.
Journal of East African Natural History
Warneckea melindensis (Melastomataceae), a new combination for an East African coastal forest endemic2009 •
Results of recent morphological and molecular analyses necessitate the transfer of the species originally described as Memecylon melindense A.Fern. & R.Fern. to the genus Warneckea Gilg. A new combination, Warneckea melindensis (A.Fern. & R.Fern.) R.D.Stone & Q.Luke is proposed, and an IUCN status of Endangered is assessed for this regional endemic of coastal forests in Kenya and Tanzania. There is no evidence of hybridisation between W. melindensis and the closely related W. sansibarica (Taub.) Jacq.-Fél., even in sites where the two species are sympatric.
2009 •
Described and illustrated is Warneckea austro-occidentalis R. D. Stone, an endemic of tropical forests in Cameroon’s South West Province and adjacent Nigeria. The name W. mangrovensis (Jacq.-Fél.) R. D. Stone is also proposed at species level for the taxon originally described as W. fascicularis var. mangrovensis Jacq.-Fél. An IUCN (2001) status of endangered is assigned for both W. austro-occidentalis and W. mangrovensis.
2010 •
Warneckea consists of shrubs and small trees endemic to tropical forests in Africa, Madagascar, and Mauritius. Phylogenetic analyses of sequence data from the transcribed spacers of nuclear ribosomal DNA (ETS, ITS) indicate that W. sect. Carnosae Jacq.-Fél. (1 sp., East Africa and Madagascar) is a divergent element that is best treated at subgeneric level. The analyses recovered three major lineages in W. subg. Warneckea, together forming a basal trichotomy. The three lineages represent W. sect. Strychnoides (western and central Africa), sect. Warneckea (East Africa, Madagascar, Mauritius), and a third group with three West African species (W. fascicularis, W. guineensis, W. mangrovensis) comprising the newly proposed W. sect. Guineenses.
2015 •
Lijndenia udzungwarum R.D. Stone & Q. Luke, a shrub or small tree of Tanzania’s Udzungwa Mountains, is described and illustrated. The placement of the new species in Lijndenia is indicated by its trinervate, papillose-muricate leaves and persistent bracteoles partially fused to form a cupule immediately subtending each flower. The cordate leaves of L. udzungwarum are unique in the genus. From the East African L. brenanii (A. Fern. & R. Fern.) Jacq.-Fél. and L. procteri (A. Fern. & R. Fern.) Borhidi, the new species is further distinguished by its capitellate inflorescences on long, filiform, axillary peduncles, resembling those of the Sri Lankan L. capitellata (Arn.) K. Bremer. Despite its local endemism, L. udzungwarum has been assessed as ‘Least Concern’ according to IUCN criteria, although this assessment is dependent on the continued safeguarding of the Udzungwa Mountains National Park. An identification key is provided for the three currently recognized Tanzanian species of Lijndenia.
2015 •
Lijndenia udzungwarum R.D. Stone & Q. Luke, a shrub or small tree of Tanzania’s Udzungwa Mountains, is described and illustrated. The placement of the new species in Lijndenia is indicated by its trinervate, papillose-muricate leaves and persistent bracteoles partially fused to form a cupule immediately subtending each flower. The cordate leaves of L. udzungwarum are unique in the genus. From the East African L. brenanii (A. Fern. & R. Fern.) Jacq.-Fél. and L. procteri (A. Fern. & R. Fern.) Borhidi, the new species is further distinguished by its capitellate inflorescences on long, filiform, axillary peduncles, resembling those of the Sri Lankan L. capitellata (Arn.) K. Bremer. Despite its local endemism, L. udzungwarum has been assessed as ‘Least Concern’ according to IUCN criteria, although this assessment is dependent on the continued safeguarding of the Udzungwa Mountains National Park. An identification key is provided for the three currently recognized Tanzanian species of Lij...
2017 •
Memecylon sect. Buxifolia R.D. Stone (Melastomataceae, Olisbeoideae) is a group of forest shrubs and small understory trees distributed from tropical East Africa (Kenya and Tanzania) to eastern South Africa and with a disjunct occurrence in Madagascar. Previous authors had recognized three species of this section as occurring in Mozambique, i.e., M. natalense Markgr., M. torrei A. Fern. & R. Fern. and M. insulare A. Fern. & R. Fern. Here we describe four new species of M. sect. Buxifolia from Mozambique and adjacent parts of Malawi and Tanzania: Memecylon incisilobum R.D. Stone & I.G. Mona, M. nubigenum R.D. Stone & I.G. Mona, M. rovumense R.D. Stone & I.G. Mona and M. aenigmaticum R.D. Stone. In accordance with previous molecular results, M. incisilobum and M. nubigenum are semi-cryptic species that had been confused with M. natalense (considered here to be a South African endemic). Memecylon rovumense and M. aenigmaticum had also been confused with M. natalense, but their conspicuously verrucose-wrinkled fruits indicate a closer affinity with M. torrei. We assess the conservation status of each new species according to the IUCN Categories and Criteria, and provide an identification key to the seven species of Memecylon currently recognized in the flora of Mozambique.
2014 •
The Marambaia is an important natural refuge for preserving the genetic heritage of several rain forest plant species. In this insular region, where the vegetation types are Lower Montane Rain Forest and restingas (sandy coastal plain habitat), the impressive diversity of Melastomataceae consists of seven genera and 25 species of which 13 represent new records for the area. Miconia is best represented with 10 species, followed by Tibouchina (6 spp.), Leandra (4 spp.), Clidemia (2 spp.) and Huberia, Marcetia and Ossaea (1 sp. each). Most of the species are shrubs or trees and occur in Dense Submontane Ombrophilous Forest. Huberia ovalifolia DC., Leandra acutiflora (Naudin) Cogn. and Leandra melastomoides Raddi are cited in the list of endangered species for the municipality of Rio de Janeiro. An identification key is provided as well as descriptions, illustrations, comments on morphological peculiarities of species, and geographical and phenological data.
IEEE Transactions on Antennas and Propagation
Diffraction of cylindrical and plane waves by an array of absorbing half-screens1992 •
2019 •
Eighth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2020)
Digital bathymetric model of the Burgas Bay, Bulgarian Black Sea2020 •
PLoS ONE
Cellular Responses in Sea Fan Corals: Granular Amoebocytes React to Pathogen and Climate Stressors2008 •
Journal of Computer and Systems Sciences International
Diagnosis of Linear Systems Based on Sliding Mode Observers2019 •
Experimental and Therapeutic Medicine
Efficacy of methotrexate as anti‑inflammatory and anti‑proliferative drug in dermatology: Three case reports2019 •
Muhasebe bilim dünyası dergisi
Bağimsiz Deneti̇m Şi̇rketleri̇nde Kali̇te Kontrol Standartlarinin Uygulanma Etki̇nli̇ği̇ni̇ Ölçmeye Yöneli̇k Bi̇r Çalişma: Türki̇ye Örneği̇2016 •
Le Journal de Physique IV
Study of Certain Magnetite and Mix Ferrite Magnetic Liquids in Static and Radiofrequency Fields1997 •
2014 •
Brazilian Journal of Development
Tecnologias digital e analógica no ensino de desenho gemétrico2020 •
2021 •
Expert Opinion on Pharmacotherapy
Pharmacotherapeutic interventions for bipolar disorder type II: addressing multiple symptoms and approaches with a particular emphasis on strategies in lower and middle-income countries2019 •
Chemistry - A European Journal
Controlling Conformations in Alternating Dialkylsilylene-Spaced Donor-Acceptor Copolymers by a Cooperative Thorpe-Ingold Effect and Polymer Folding2011 •
IEEE Transactions on Medical Imaging
Nonsupervised Ranking of Different Segmentation Approaches: Application to the Estimation of the Left Ventricular Ejection Fraction From Cardiac Cine MRI Sequences2012 •
Early Human Development
Special formulas in infant nutrition: a review1998 •
Zenodo (CERN European Organization for Nuclear Research)
Control of multiferroic features in BiFeO3 nanoparticles by facile synthetic parameters2023 •
2014 •