Ceropegia heidukiae (Apocynaceae-Asclepiadoideae)—a morphologically intriguing and rare novelty from South Africa

Phytotaxa ◽  
2021 ◽  
Vol 497 (1) ◽  
pp. 20-28
Author(s):  
DAVID G.A. STYLES ◽  
ULRICH MEVE

A new species of Ceropegia (Apocynaceae: Asclepiadoideae-Ceropegieae-Stapeliinae) is described from Ngome in KwaZulu-Natal, South Africa. This new species shares a subset of vegetative and floral characters with the long-lost C. rudatisii, but is clearly separated by its sophisticated floral morphology. Ceropegia heidukiae occurs in Northern Zululand Mistbelt Grassland, an endangered vegetation type. A comprehensive species description is provided together with information on habitat and distribution; photographs of plants in habitat are also provided. A preliminary assessment of conservation status according to IUCN criteria suggests that C. heidukiae is Critically Endangered (CR).

Phytotaxa ◽  
2019 ◽  
Vol 405 (5) ◽  
pp. 263-268 ◽  
Author(s):  
NATASHA LOMBARD ◽  
M. MARIANNE LE ROUX ◽  
BEN-ERIK VAN WYK

A new species from South Africa, Thesium ovatifolium, is described. A diagnosis, description and photographs are provided along with details of its distribution, habitat and conservation status. The new species forms part of Thesium sect. Barbata, which is characterized by the presence of a dense apical beard on the corolla lobes and post-staminal hairs connecting the anthers to the perianth. It is distinguished by its alate stems, large ovate leaves and bracts, with reticulate secondary venation, 3- to 4-flowered cymes on inflorescence apices, as well as the rosulate arrangement of leaves and bracts in young stems and inflorescences. Thesium ovatifolium is believed to be Endangered (EN), based on IUCN criteria.


Phytotaxa ◽  
2016 ◽  
Vol 282 (1) ◽  
pp. 28 ◽  
Author(s):  
STOFFEL P. BESTER ◽  
ASHLEY NICHOLAS

Periglossum 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 provided.


Phytotaxa ◽  
2020 ◽  
Vol 468 (2) ◽  
pp. 221-225
Author(s):  
ABDULWAKEEL AYOKUN-NUN AJAO ◽  
THULISILE PRECIOUS JACA ◽  
ANNAH NTSAMAEENG MOTEETEE

During the examination of the rich collections of the genus, Rhynchosia housed in some South African herbaria (BNRH, NH, PRE), a new and yet to be described species was discovered. The species is similar to R. pauciflora in its erect habit, linear or oblong leaflets, and solitary flowers. The study is based on the examination of herbarium specimens. Measurements were taken from vegetative and reproductive parts. We describe here R. ngwenyii. The new species differs from R. pauciflora by its broader (24–38 mm), linear-lanceolate to oblong-lanceolate terminal leaflets that are without conspicuous revolute margins, wing petals that lack sculpturing and shorter peduncles, (25)30–42 mm. It is distributed in KwaZulu-Natal and Mpumalanga Provinces in South Africa. The preliminary conservation status is evaluated as Endangered. A detailed description, illustration, distribution map, and the information on ecology, as well as phenology are also presented.


2019 ◽  
Vol 60 (1) ◽  
pp. 31-65
Author(s):  
Jason G. H. Londt ◽  
Torsten Dikow

Southern AfricanChoeradesWalker, 1851 are reviewed. Six species are recognised (C.analogossp. n.described from South Africa: KwaZulu-Natal,C.bella(Loew, 1858),C.flavipes(Wiedemann, 1821),C.multipunctata(Oldroyd, 1974),C.nigrapex(Bigot, 1878),C.nigrescens(Ricardo, 1925)) and a key for their separation is provided. Distributional information demonstrates that species are found primarily in moderate to higher rainfall regions. The little that is known of their biology is discussed. Species are usually associated with indigenous forest habitats where larval development takes place in decomposing wood.


Bothalia ◽  
2011 ◽  
Vol 41 (1) ◽  
pp. 201-204
Author(s):  
N. R. Crouch ◽  
J. Wesley-Smith

Pilularia dracomontana, a new species of pillwort from the KwaZulu-Natal Drakensberg, South Africa.


Phytotaxa ◽  
2019 ◽  
Vol 423 (2) ◽  
pp. 105-110
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
JULIO CESAR JARAMILLO ◽  
ELISANDRO RICARDO DRECHSLER-SANTOS

We describe here Begonia medeiroii, a narrow endemic species from the Atlantic Rainforest. The conservation status of this species was assessed as critically endangered according to IUCN criteria. This species resembles to B. catharinensis and B. hirtella in some characteristics, differing among other features due the presence of adventitious vegetative buds on the adaxial surface of the leaves.


Zootaxa ◽  
2012 ◽  
Vol 3522 (1) ◽  
pp. 73
Author(s):  
PETER J. F. DAVIE ◽  
PETER K. L. NG

Platepistoma seani sp. nov. is described from deep water off KwaZulu-Natal Province, South Africa. It can be separatedfrom its nearest relative, Platepistoma guezei (Crosnier, 1976), by its thicker setal covering that completely hides the an-terolateral teeth from dorsal view, less well defined carapace regions, more spinous anterolateral and posterolateral cara-pace margins, sparser but more prominent dorsal carapace spines, more prominent spines on the carpus of the cheliped, and a relatively narrower male telson.


Phytotaxa ◽  
2015 ◽  
Vol 192 (4) ◽  
pp. 296
Author(s):  
Marie Jordaan ◽  
Abraham E. Van Wyk

Gymnosporia swazica, a new restricted-range southern African species, is described and illustrated here. Known from only a few localities in Swaziland and bordering parts of South Africa (Mpumalanga and northeastern KwaZulu-Natal), G. swazica grows as an understorey shrub or small tree in forest, often among granite boulders. Diagnostic characters for G. swazica include chartaceous leaves, usually shorter than 25 mm, 3-valved capsules usually 6–7 mm long, which are smooth, green turning yellow, and a white aril partially covering the brownish seed. Its closest relative appears to be G. buxifolia (capsules rugose, mottled white-and-brown), one of the most widespread members of the genus in southern Africa, but it can also be confused with G. maranguensis (capsules red, 2-valved) and G. harveyana (capsules pink to red, 3-valved; aril orange, completely covering the seed).


Phytotaxa ◽  
2014 ◽  
Vol 184 (3) ◽  
pp. 131 ◽  
Author(s):  
Lucas Sá Barreto Jordão ◽  
Marli Pires Morim ◽  
José Fernando Andrade Baumgratz

A new species of Mimosa is described from the Atlantic Rainforest and ecotone with the Cerrado of southeastern Brazil, in the states of Minas Gerais, Rio de Janeiro and São Paulo: M. porrecta L. Jordão, M.P. Morim & Baumgratz (Leguminosae). Related to M. sensitiva, it shares morphological affinities with this species but differs in having porrect-stellate trichomes, a new type of trichome for the genus, on the stems, and the dendritic trichomes in the fruits. The conservation status was assessed, according to IUCN criteria, as Least Concern.


Phytotaxa ◽  
2014 ◽  
Vol 177 (1) ◽  
pp. 26 ◽  
Author(s):  
Tariq Stévart ◽  
Jean Philippe Biteau ◽  
Valérie Cawoy ◽  
Vincent Droissart

Two specimens of an apparently new Bulbophylum species were found in the Monts de Cristal, Gabon. They have a unique leaf shape among the species of this genus in Continental Africa. The flower shares the general morphology of Bulbophyllum saltatorium, one of the most common members of Bulbophyllum in Central Africa. Eight other taxa of the Continental African Bulbophyllum possess unifoliate pseudobulbs and long hairs on the lip. Comparison with them indicates that the new collections from Gabon represent a distinctive species, not yet known in the genus. We describe it here as Bulbophyllum pauwelsianum. The distinguishing features of the species include its leaves, which are pendant, coriaceous, linear, semiterete and v-shaped in transverse section, and its sepals, which possess relatively long hairs on their margins. A table of the taxonomic treatments of the nine Continental African Bulbophyllum taxa considered here is included. A taxonomic key and a table of the diagnostic characters of these nine taxa are given to facilitate identification. The new species is restricted to lowland forests of the Monts de Cristal in Gabon. A preliminary assessment of the conservation status, using the IUCN Red List Categories and Criteria is provided.


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