Systematics of the southern African genus Ixia (Iridaceae). 2. The filiform-leaved I. capillaris complex

Bothalia ◽  
2008 ◽  
Vol 38 (2) ◽  
pp. 115-124
Author(s):  
P. Goldblatt ◽  
J. C. Manning

Field study and associated examination of herbarium specimens of the filiform-leaved species of section Morphixia o f the South African genus Ixia L. have resulted in an increase in the number of species with this derived leaf type.  Ixia capillaris and  I. pauciflora have until now been the only species with such leaves and they have not been regarded as immediately related in past accounts of the genus. The two foliage leaves, typically less than 2 mm w ide, with a leathery to succulent texture, and lacking a raised central vein or margins, are specialized in the genus. Associated finely fibrous corm tunics, spikes of 1-3 flowers, and when present, short, thread-like lateral branches, usually bearing 1 or 2 flowers, provide supporting evidence that the group is monophyletic.  I. capillaris as interpreted until now. comprises four species, three of them new and described here, and the large-flowered I. pauciflora includes two species, one of these described here. While I. capillaris has a branched stem, radially symmetric flowers with a penanth tube (4—)5—7(—8) mm long, tepals 11-15 mm long and thus substantially exceeding the tube, filaments typically exserted 1-2 mm. and anthers (3—)4—5 mm long. I. exiliflora has a tube 8-10 mm long and ± as long as the tepals, included filaments, and anthers 3.5—4.0 mm long. The new  I. dieramoides also has included filaments but a perianth tube 13—18(—22) mm long and tepals 11-18 mm long. A third new species. I. reclinata has large flowers with a tube 13-15 mm long, tepals 16-21 mm long, and unilateral, decimate stamens with the filaments exserted 8-10 mm. and anthers 4-5 mm long. Typical  I. pauciflora has flowers with unilateral stamens and filaments exserted 2-6 mm from the flower and anthers prominently displayed, but specimens until now included in that species w ith short, included filaments 3-5 mm long and anthers half included in the tube, are here regarded as I. dieramoides. The I. capillaris group astreated here, now includes five species.

Zootaxa ◽  
2020 ◽  
Vol 4766 (2) ◽  
pp. 261-305
Author(s):  
DUNIESKY RÍOS-TAMAYO ◽  
ROBIN LYLE

After more than a century, the genus Lepthercus Purcell, 1902 is revised. Lepthercus dregei Purcell, 1902 and L. rattrayi Hewitt, 1917 are redescribed; with the female of L. dregei described for the first time. Nine new species of Lepthercus are described. A phylogenetic analysis with morphological characters using implied weights and parsimony as optimality criteria, suggests the separation of the genus in two clades. The first clade is formed by L. dippenaarae sp. nov., L. engelbrechti sp. nov., L. haddadi sp. nov., L. rattrayi Hewitt, 1917 and L. sofiae sp. nov., here denominated “Group haddadi”. The species L. confusus sp. nov., Lepthercus dregei Purcell, 1902, Lepthercus filmeri sp. nov., Lepthercus kwazuluensis sp. nov., Lepthercus lawrencei sp. nov. and Lepthercus mandelai sp. nov., form the second clade, here denominated “Group dregei”. The “Group haddadi” is characterized by males with a curved metatarsus I, and a swollen tibia I. The “Group dregei” is supported by the presence of small maxillary cuspules in males. A new diagnosis is provided for Lepthercus as well as an identification key for all species of the genus. New distribution maps for the genus in the country are also presented. 


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.


Zootaxa ◽  
2020 ◽  
Vol 4896 (3) ◽  
pp. 409-442 ◽  
Author(s):  
TOUFIEK SAMAAI ◽  
MICHELLE KELLY ◽  
BENEDICTA NGWAKUM ◽  
ROBYN PAYNE ◽  
PETER R. TESKE ◽  
...  

Sixteen species of Latrunculiidae Topsent, 1922, belonging to the genera Latrunculia du Bocage, 1869, Strongylodesma Lévi, 1969, Cyclacanthia Samaai & Kelly, 2004, Samaai & Kelly, 2002, are currently known from the temperate waters of South Africa. Extensive new sponge collections from the Amathole region of South Africa revealed the existence of three new species of Tsitsikamma, T. amatholensis sp. nov., T. madiba sp. nov., and T. beukesi sp. nov., and a new species of the endemic South African genus Cyclacanthia, C. rethahofmeyri sp. nov. With the recent addition of two new species of Tsitsikamma from Algoa Bay and Tsitsikamma National Park (T. michaeli Parker-Nance, 2019; T. nguni Parker-Nance, 2019) the total number of known South African Latrunculiidae is now 20 species in four genera. Here we propose two new subgenera of Tsitsikamma, Tsitsikamma Samaai & Kelly, 2002 and Clavicaulis subgen. nov., based on the morphological groups “favus” and “pedunculata” hypothesized by Parker-Nance et al. (2019). Species in the nominotypical subgenus Tsitsikamma, containing the type species, are thick encrusting to hemispherical with a rigid honeycombed choanosome, while species in the new subgenus Clavicaulis subgen. nov. have a purse or sac-like morphology with little choanosomal structure. Despite the obvious species-level differences in morphology, multivariate analysis based on spicule measurements (anisostyle length, discorhabd length, shaft and whorl length) was not able to distinguish between the proposed Tsitsikamma species, but separated known species T. favus Samaai & Kelly, 2002, T. pedunculata Samaai & Kelly, 2003, and T. scurra Samaai & Kelly, 2003, from each other. Similarly, DNA barcoding of the mitochondrial COI  and the nuclear ITS of Tsitsikamma specimens failed to clearly differentiate between species, but was able to differentiate sister taxon relationships within the Latrunculiidae. 


Bothalia ◽  
2008 ◽  
Vol 38 (1) ◽  
pp. 49-55 ◽  
Author(s):  
P. Goldblatt ◽  
J. C. Manning ◽  
R. Gereau

Babiana symmetrantha and B. virescens are two new species of section Teretifolieae of this southern African genus, now comprising 90 species. Babiana symmetrantha blooms in August and early September and is restricted to the summit of the Langberg which lies along the border of Namaqualand and the western Karoo near Loeriesfontein. One of only three species of the section with radially symmetric flowers, it is acaulescent and has linear, almost plane leaves covered with long hairs, a perianth tube 45-60(-75) mm long, and subequal, spreading tepals. Babiana virescens blooms in early winter, in May and June, and occurs in seasonally moist open ground on gentle slopes and valley bottoms in southern Namaqualand between Nuwerus and Bitterfontein. It is distinguished by the slightly misted, oblong leaves with thickened, pale margins, and the glabrous cataphvlls and leaf sheaths. The stem, which may be produced up to 100 mm above the ground, is simpleor has a single short branch and the spikes bear 2-6 greenish flowers, the tepals of which are unusually narrow and longer than the perianth tube. We also propose a new name. B tubaeformis.  for the homonym B. longiflora and provide a new combination  B.  hirsuta based on the 1783 name Antholyza hirsuta Lam., which replaces B thunbergii Ker Gawl. (1804). Lastly, we present an argument that Babiana is correctly attributed to Ker Gawler alone and that its protologue dates from 1802 contrary to some current authorities.


Zootaxa ◽  
2012 ◽  
Vol 3268 (1) ◽  
pp. 55 ◽  
Author(s):  
PAWEŁ JAŁOSZYŃSKI

A new species of the endemic South African genus Stenomastigus Leleup (Staphylinidae, Scydmaeninae, Mastigini), S.pseudofranzi sp. n. is described. Because some morphological structures of the new species highly resemble those of S.franzi Leleup, description of the latter species is supplemented with previously unknown details of the aedeagus (includingthe copulatory piece). Habitus, aedeagi, modified fore legs of males and other diagnostic characters of both species are illustrated.


Zootaxa ◽  
2012 ◽  
Vol 3153 (1) ◽  
pp. 39 ◽  
Author(s):  
PAWEŁ JAŁOSZYŃSKI

Based on examination of type species, the subgenera of South African genus Stenomastigus Leleup are merged and the name Acanthostigus Leleup is placed as a junior synonym of Stenomastigus. A group of species characterized by a prominent distal projection of the male protrochanters is revised and two new species are described: S. berlinafricanus sp. n. and S. kosianus sp. n. New diagnoses of S. allaeri Leleup, S. basilewskyi Leleup and S. kochi Leleup are given. Habitus, aedeagi, modified fore legs and other diagnostic characters of all treated species are illustrated.


1993 ◽  
Vol 24 (3) ◽  
pp. 285-291 ◽  
Author(s):  
Rita Marullo ◽  
Laurence A. Mound

AbstractThe New World genus Erythrothrips is redefined and a key to the species provided. A new genus and species, Erythridothrips cubilis, is described from Australian tropical rain-forest. The South African genus Audiothrips is withdrawn from synonymy with Erythrothrips and a new species, A. senckenbergiana, is described. The sole African species in the American genus Stomatothrips is transferred to the African genus Allelothrips. The relationships of these taxa are discussed, together with reasons for questioning the validity of the tribe Orothripini.


Author(s):  
J. Boomker ◽  
W.A. Taylor

A new species of Cooperia, for which the name Cooperia pigachei n. sp. is proposed, was recovered from a mountain reedbuck, Redunca fulvorufula, from the Sterkfontein Dam Nature Reserve, Free State Province, and is described and illustrated. It is close to Cooperia neitzi Mönnig, 1932 and the South African race of Cooperia rotundispiculum in having more than 14 longitudinal cuticular ridges and in that the lateral cervical synlophe is of the closed type. The new species differs from all the other species of the genus in that the lateral branches of the dorsal ray are large and T-shaped. The spicules are robust, over 0.3 mm long and have large, curved shoes on their tips.


ZooKeys ◽  
2019 ◽  
Vol 857 ◽  
pp. 59-84 ◽  
Author(s):  
Michael S. Engel ◽  
Zachary H. Falin ◽  
Jan Batelka

Taxonomic notes are provided on species of the uncommonly encountered ripiphorid subfamily Pelecotominae. Zapotecotomasumichrastigen. et sp. nov., is described from southern Mexico based on a unique male likely collected in the later part of the mid-19th Century. The discovery of additional species of the South African genus Clinops Gerstaecker permit a revised diagnosis and distinction of the group from the eastern Mediterranean genus Scotoscopus Brenske and Reitter, resurrected status. Two new species of Clinops are established: Clinopsinexpectatussp. nov. (northeast of Durban near Swaziland) and C.perpessussp. nov. (region of Durban), and Scotoscopusspectabilis (Schaufuss) is newly recorded for the Peloponnese in Greece.


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