Nemesia arenifera (Scrophulariaceae), a new species from the Sandveld, Northern Cape Province, South Africa, and the  ectotypification of N. viscosa

Phytotaxa ◽  
2013 ◽  
Vol 126 (1) ◽  
pp. 49
Author(s):  
STOFFEL P. BESTER ◽  
HESTER M. STEYN

Nemesia arenifera is described as a new species that has been overlooked since 1904. The name Nemesia viscosa was misapplied to specimens from the Namaqualand coast that was considered a coastal form of N. viscosa. Nemesia arenifera is a common and widespread plant on sandy soils in the coastal zone of Namaqualand, Northern Cape, while N. viscosa is only known from the original two gatherings made from one location in the Richtersveld, Northern Cape. The new species differs from N. viscosa and N. rupicola in habit, leaf and fruit shape, and by the orientation of the spur, which is similar to that of N. rupicola. A comparative table with diagnostic morphological features of N. arenifera, N. viscosa and N. rupicola is provided and a lectotype for N. viscosa is selected. Diagnostic characters of N. arenifera include the erect, sparsely branched habit, small yellow flowers, the orientation of the spur, and the densely viscid, glandular-pilose indumentum.

Bothalia ◽  
2002 ◽  
Vol 32 (1) ◽  
pp. 1-7 ◽  
Author(s):  
J. P. Rourke

Clivia mirabilis Rourke is a new pendulous tubular-flowered species from Oorlogskloof Nature Reserve in Northern Cape. Its distribution area is some 800 km outside the previously accepted range of the genus Clivia. This sun-tolerant species is adapted to an arid Mediterranean climate, producing vegetative growth in winter and maturing its seeds rapidly in late summer/early autumn to synchronize with the arrival of winter rains.


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 ◽  
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.


2010 ◽  
Vol 67 (3) ◽  
pp. 425-430 ◽  
Author(s):  
C. N. Cupido

A new species, Roella uncinata Cupido (Campanulaceae), from Western Cape, South Africa, is described and illustrated, and its known distribution mapped. A proposed conservation assessment is provided, and its diagnostic characters and affinity are discussed.


Bothalia ◽  
2014 ◽  
Vol 44 (1) ◽  
Author(s):  
Nicola G. Bergh ◽  
Nick A. Helme

Background: Berkheya is a large, mainly southern African genus of approximately 75 species, several of which are poorly known and under-collected. Since revision in 1959, only a few new species have been described. Publication of new taxa facilitates conservation objectives and contributes to a better understanding of the southern African flora.Objectives: The objectives of this study were to describe a new species of Berkheya, consider its taxonomic position within the genus and assess its conservation status.Methods: Macromorphology and micromorphology of the new species were compared with known species.Results: Berkheya dumicola N.G.Bergh Helme was described from two subpopulations from the northern Bokkeveld escarpment, Northern Cape Province, South Africa. The species is a tall shrub with radiate flowerheads, toothed receptacle alveole margins, a uniseriate pappus of small, rounded scales and very short twin-hairs on the cypsela.Conclusion: Berkheya dumicola is a new species with a unique combination of features. Based on morphological characteristics, its closest relative within the genus is likely to be the recently describedBerkheya chrysanthemoides J.C.Manning Goldblatt. The limited geographic extent and small population size of B. dumicola warrant an International Union for Conservation of Nature (IUCN) status of ‘Endangered’.


Bothalia ◽  
2008 ◽  
Vol 38 (1) ◽  
pp. 75-78 ◽  
Author(s):  
J. C. Manning ◽  
P. Goldblatt

A NEW SPECIES OF OXALIS FROM THE HANTAM-ROGGEVELD PLATEAU, NORTHERN CAPE. SOUTH AFRICA


2020 ◽  
Vol 1 (4) ◽  
pp. 164-167
Author(s):  
George Poinar

The present paper describes a new species of encyrtid wasp, Hambletonia dominicana sp. nov. (Hymenoptera: Encyrtidae) from Dominican amber. Diagnostic characters include long antennae that are almost twice the length of the head, the absence of long, coarse, flattened setae on the dorsal apical margin of the pedicel, and an elliptical club subequal in length to that of the funicle. This first described fossil species of Hambletonia provides views of new and possible unique morphological features of encyrtid wasps that existed in the Neotropics during the mid-Tertiary.


Phytotaxa ◽  
2019 ◽  
Vol 414 (4) ◽  
pp. 165-173
Author(s):  
WESSEL SWANEPOEL ◽  
ROLF W. BECKER ◽  
ALMA MӦLLER ◽  
VERA DE CAUWER

Euphorbia rimireptans, here described as a new species, is known only from the northern part of the Skeleton Coast (part of the Namib Desert) in the Kaokoveld Centre of Endemism, northwestern Namibia. These perennial shrublets grow on rocky outcrops of latite under harsh desert conditions. Diagnostic characters for E. rimireptans include the procumbent, sometimes pendant habit, the soft, rubber-like terete or slightly tapering branches that are curved or ± straight, frequently orientated in the same direction from the base, and the glabrous or sparsely hairy capsule, which releases verrucose ovoid seeds. A comparison of some of the more prominent morphological features to differentiate between E. rimireptans and its possible nearest relative, E. giessii, is provided.


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