1,720,990 research outputs found
Schizoglossum austromontanum, a novel new species from South Africa (Apocynaceae, Asclepiadoideae, Asclepiadeae)
No full textA new species from southern Africa namely Schizoglossum austromontanum is described. Line-drawings, scans of the type material, images and a conservation assessment are provide
New combinations in Stenostelma (Apocynaceae-Asclepiadoideae) and two novel species from South Africa
No full textTwo new combinations are made for taxa that were previously attributed to the genus Schizoglossum and are now placed in the genus Stenostelma. Included is the typification of Stenostelma capense, S. carinatum, S. corniculatum, S. eustegioides and S. periglossoides. Two new species, Stenostelma ligulatum and S. urceolatum, both with restricted distributions, are described here. Preliminary conservation assessments (Red List status) for the newly described taxa are provide
Periglossum podoptyches (Apocynaceae-Asclepiadoideae), a new species from KwaZulu-Natal province, South Africa
No full textPeriglossum podoptyches is described as a new species from the KwaZulu-Natal Province of South Africa. As a rare species its conservation status is assessed as Vulnerable. This new species is closely related to both Periglossum mackenii and P. kassnerianum from which it differs mainly in having folded flaps of tissue at the base of the face of the restricted basal stalk of the staminal corona lobes. A comparative table with diagnostic morphological features and a key to the species of Periglossum are provide
The first records of Polygala westii (Polygalaceae) for South Africa (North-West Province) and a key to the southern African Polygala species in the Section Tetrasepalae
No full textThe first record of Polygala westii (Polygalaceae) from the North-West Province (South Africa) is reported on here. The species is very rare and has previously only been collected in two separate gatherings. This species is characterised by having bracts and bracteoles caducous, the anterior sepals connate at least as much as half of their length and seeds pubescent and carunculate. It grows in a habitat that are severely impacted by agriculture and mining. A preliminary assessment of its conservation status is given. A key to the South African species in the subsection (Tetrasepalae) to which P. westii belong is provided. The aim of this paper is to highlight the species in order to stimulate the lookout for more material of this specie
The identity of Schizoglossum theileri (Apocynaceae, Asclepiadoideae)
No full textSchizoglossum theileri (Apocynaceae, Asclepiadoideae) is found to be conspecific with Asclepias meliodora and is here formally reduced to synonymy under the latte
FIGURE 2 in Nemesia arenifera (Scrophulariaceae), a new species from the Sandveld, Northern Cape Province, South Africa, and the lectotypification of N. viscosa
No full textFIGURE 2.—Known distribution of Nemesia arenifera, based on specimens at PRE and NBG. Specimens collected through the National Herbarium Plant Collecting Programme (2005–2011), •; other collections, Θ.Published as part of Bester, Stoffel P. & Steyn, Hester M., 2013, Nemesia arenifera (Scrophulariaceae), a new species from the Sandveld, Northern Cape Province, South Africa, and the lectotypification of N. viscosa, pp. 49-54 in Phytotaxa 126 (1) on page 53, DOI: 10.11646/phytotaxa.126.1.6, http://zenodo.org/record/508528
FIGURE 4 in Re-instatement of Craterostigma nanum (Linderniaceae) from the Pondoland Centre of Floristic Endemism and key to the South African species
No full textFIGURE 4. Craterostigma wilmsii (A–C). A. Close-up of flowers. B. Habit. C. Basal rosette of leaves. Craterostigma plantagineum (D–G). D. Close-up of flower. E & F. Plants in habitat. G. Note the ± sub-erect, large conspicuously veined leaves forming a basal rosette. Photos: A. Marinda Koekemoer; B–G. Neil Crouch.Published as part of Grieve, Katharine W. & Bester, Stoffel P., 2023, Re-instatement of Craterostigma nanum (Linderniaceae) from the Pondoland Centre of Floristic Endemism and key to the South African species, pp. 135-143 in Phytotaxa 592 (2) on page 141, DOI: 10.11646/phytotaxa.592.2.7, http://zenodo.org/record/784050
An amplified description for the elusive Cordylogyne argillicola (Apocynaceae—Asclepiadoideae) from Namibia
No full textOwing to the brief description, and in the absence of any known type collection of Cordylogyne argillicola, the application of the name remained unresolved for over a century. Type material that was recently discovered in the South African Museum (SAM) collection has made it possible to give an amplified description here. A depiction from the type and additional specimens, a full scan and line-drawings of various floral parts, and a conservation assessment are presented. In addition, C. argillicola is compared to the only other species in the genus, Cordylogyne globosa, in terms of morphology and distribution.</jats:p
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