scholarly journals Maerua sebrabergensis (Capparaceae), a new species from Namibia

Phytotaxa ◽  
2015 ◽  
Vol 207 (1) ◽  
pp. 123 ◽  
Author(s):  
Wessel Swanepoel

Maerua sebrabergensis, here described as a new species, has a restricted range and is only known from the Zebra Mountains within the Kaokoveld Centre of Endemism, northwestern Namibia. Diagnostic characters for M. sebrabergensis include a geoxylic suffrutescent habit (rarely a small tree), simple, alternate leaves, petaliferous flowers with the disc not or only slightly produced and smooth, cylindrical, slightly torulose fruit. A comparison of some of the more prominent morphological features to differentiate between M. sebrabergensis and its possible nearest relative, M. parvifolia, are provided.

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 ◽  
2019 ◽  
Vol 405 (4) ◽  
pp. 203
Author(s):  
WESSEL SWANEPOEL ◽  
ERNST J. VAN JAARSVELD

Ocimum sebrabergensis, here described as new species, has a restricted range and is only known from the Zebra Mountains within the Kaokoveld Centre of Endemism, northwestern Namibia. These shrubs grow on clayey soil among greyish black rocks of anorthosite. Diagnostic characters for O. sebrabergensis include the mauve-coloured corolla with four orbicular lobes on the posterior lip and the calyx which has the lateral lobes of the anterior lip asymmetric lanceolate. Ocimum sebrabergensis is placed in Ocimum subg. Ocimum sect. Hiantia subsect. Hiantia ser. Serpyllifolium. A comparison of some of the more prominent morphological features to differentiate between O. sebrabergensis and its possible nearest relatives, O. burchellianum and O. fimbriatum, are provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1) is recommended for the new species.


Bothalia ◽  
2008 ◽  
Vol 38 (1) ◽  
pp. 31-37 ◽  
Author(s):  
E. Retief ◽  
S. J. Siebert ◽  
A. E. Van Wyk

Euclea sekhukhuniensis Retief, Siebert A.E.van Wyk. a new species with a restricted range in Sekhukhuneland, South Africa, is described, illustrated and compared with other members of the genus. It is a gregarious geoxylic sufthitex forming large, much-branched colonies. The species is closely related to the small tree/shrub E. linearis Zeyh. ex Hiem from which it can be distinguished by its larger fruits, broader leaves and exclusively suffrutex growth form. Geographical range and habitat preference also differ between the two taxa. E. sekhukhuniensis is endemic to the Sekhukhuneland Centre of Plant Endemism, where it is confined to the calcareous, heavy-metal soils of the Steelpoort River Valley.


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.


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.


2010 ◽  
Vol 142 (3) ◽  
pp. 200-211 ◽  
Author(s):  
Seung-Ho Oh ◽  
Jong-Wook Lee ◽  
Won-Young Choi

AbstractA new species, Arthula biformis Oh and Lee sp. nov., belonging to the cryptine ichneumonid subtribe Sphecophagina Beirne is described from Korea. The new species is composed of two seasonal forms, overwintering and summer, distinguished by color and some morphological features. The overwintering form is much darker than the summer form. Keys to the genera of Sphecophagina and the known species of Arthula Cameron and photographs of diagnostic characters of both color forms of the new species are provided.


Phytotaxa ◽  
2020 ◽  
Vol 451 (4) ◽  
pp. 257-266
Author(s):  
WESSEL SWANEPOEL ◽  
ERNST J. VAN JAARSVELD

Hymenodictyon kaokoensis, here described as a new species, has a restricted range and is only known from the mountains along the Kunene River in the Kaokoveld Centre of Endemism, northwestern Namibia. It is represented by shrubs or small trees growing in rocky places, on mountain slopes and river valleys. Diagnostic characters for H. kaokoensis include the thickset semi-succulent older stems, echinate (scabrid when dry) leaves that turn stramineous before falling, simple racemose, erect inflorescences, and ellipsoid fruits with round or elongated prominent lenticels. A comparison of some of the more prominent morphological features to differentiate between H. kaokoensis and its possible nearest relatives, H. floribundum and H. parvifolium, are provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1 & D2) is recommended for the new species.


Phytotaxa ◽  
2019 ◽  
Vol 427 (3) ◽  
pp. 209-215
Author(s):  
WESSEL SWANEPOEL ◽  
VERA DE CAUWER

Crassothonna agaatbergensis, 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 basalt of the Agaatberg Mountain under harsh desert conditions. Diagnostic characters for C. agaatbergensis include the partially buried, globose, obovoid or ampulliform caudex and the inconspicuous rays which are much shorter than the involucre. A comparison of some of the more prominent morphological features to differentiate between C. agaatbergensis and its possible nearest relatives, C. clavifolia and C. protecta, is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Endangered (EN D) is recommended for the new species.


Bothalia ◽  
2005 ◽  
Vol 35 (1) ◽  
pp. 47-53 ◽  
Author(s):  
W. Swanepoel

Commipora kaokoensis W.Swanepoel. here described as a new species, is known only from the Kaokoveld Centre of Endemism, an arid region in northwestern Namibia. Illustrations of the plant and a distribution map are provided. Diagnostic characters include the petiolate or subsessile. all-simple and relatively large leaves with the lamina obovate or elliptic. New information is provided on the leaf morphology and geographical distribution of C. namaensis Schinz and C.  dinteri Engl., species with which the new species shares some similarities. When without leaves or fruit, the three species can easily be con­fused. A comprehensive table with diagnostic morphological features to distinguish between the three species is presented.


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