A taxonomic revision of the genus Merciera (Campanulaceae)

Bothalia ◽  
2006 ◽  
Vol 36 (1) ◽  
pp. 1-11
Author(s):  
C. N. Cupido

A taxonomic account of Western Cape endemic genus Merciera A.DC. is presented. Six species, supported by recent phenetic studies, are recognized. M. brevifolia A.DC., M. eckloniana H.Buek. M. leptoloba A.DC. and M. tenuifolia (L.f.) A.DC are retained as species. M. azurea Schltr. is returned to species status and M. tetraloba C.N.Cupido was recently described. Each species is described and illustrated. A key to the species, and distribution maps are provided.

Bothalia ◽  
2011 ◽  
Vol 41 (2) ◽  
pp. 239-267 ◽  
Author(s):  
J. C. Manning ◽  
P. Goldblatt

Thereianthus G.J.Lewis is revised, with full descriptions and synonomy, distribution maps, and notes on ecology and taxonomic history. All species are illustrated, and capsule and seed morphology are described for many of the species for the first time. Novel characteristics of the bract, seed, and pollen operculum are used to separate the species into two sections: sect. Brevibracteae Goldblatt J.C.Manning is distinguished by relatively small bracts, 3–8 mm long and uniformly leathery or soft-textured without thickened veins, seeds with filiform chalazal extension, and pollen grains with 1-banded operculum; and sect. Thereianthus by relatively larger bracts, (7–)8–15 mm long with prominently sclerified veins, seeds without any extension to the chalazal crest, and pollen grains with ± 2-banded operculum. Species in sect. Thereianthus are further segregated into ser. Thereianthus, with heavily ribbed leaves and suberect flowers with arcuate or erect stamens, and ser. Bracteolatus, with plane, inconspicuously veined leaves and ± spreading flowers with declinate stamens. Eleven species are recognized in the genus, all restricted to the southwestern portion of Western Cape. Two new species are described in sect. Thereianthus: T. bulbiferus Goldblatt J.C.Manning, known from three populations along the West Coast, is distinguished by the unique development of cormels in the lower leaf axil, and by its actinomorphic perianth with white marks at the base of each tepal and ± declinate stamens; and T. elandsmontanus Goldblatt J.C.Manning, known from a single population in Elandsberg Nature Reserve near Wellington, has distinctive cream-coloured, moderately long-tubed flowers with unusually narrow, linear tepals heavily marked with purple near the base. In adddition, T. lapeyrousioides [now T. minutus] var. elatior G.J.Lewis in sect. Brevibracteae is raised to species status as T. intermedius Goldblatt J.C.Manning, differing from typical T. minutus by the shorter perianth tube (10–13 vs 20–30 mm), shorter bracts (3–5 vs 6–8 mm), and smaller, ovoid capsules, 4–5 mm long, containing ovoid seeds vs flask-shaped capsules 6–8 mm long and fusiform seeds.


Brunonia ◽  
1987 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
LA Craven

A taxonomic revision of Calytrix Labill., an Australian endemic genus of Myrtaceae, tribe Chamelaucieae, is presented. Lhotskya Schauer is reduced to a synonym of Calytrix. Seventy-two species are recognized of which the following 22 are described as new: C. amethystina, C. carinata, C. chrysantha, C. divergens, C. duplistipulata, C. eneabbensis, C. erosipetala, C. formosa, C. gurulmundensis, C. gypsophila, C. habrantha, C. islensis, C. microcoma, C. parvivallis, C. paucicostata, C. platycheiridia, C. praecipua, C. rupestris, C. similis, C. truncatifolia, C. verruculosa and C. warburtonensis. Two species comprise two subspecies each, of which one, C. simplex subsp. suboppositifolia, is also described as new. Other than autonyms the following new names result from the transfer of Calycothrix and Lhotskya species to Calytrix, and/ or changes in taxonomic rank: C, acuttfolia, C, breviseta subsp. stipulosa, C. brownii, C. drummondii, C. glaberrima, C. harvestiana, C. merrelliana, C. nematoclada, C. purpurea, C. smeatoniana and C. sylvana. Distinctive features of the morphology are discussed. A new term, cheiridium, is proposed for an apparently adaptive structure formed from the peduncle and persistent, connate bracteoles. Other biological aspects that are discussed briefly include floral biology, fruit and dispersal, and geography. An informal infrageneric classification, based largely upon floral features, is outlined. New taxa are illustrated. Distribution maps are provided for all taxa.


2018 ◽  
Vol 12 (2) ◽  
pp. 579-641
Author(s):  
Gary Li ◽  
Peter W. Fritsch

Several taxonomic treatments of Styrax (Styracaceae) exist in regional floras of Asia, but the Asian species of the genus have not been comprehensively revised since 1907. A treatment of the Asian taxa of S. series Cyrta with imbricate floral aestivation was accomplished in 2003. To complete the taxonomic revision of S. series Cyrta, we conducted a taxonomic revision of the species of the series with valvate aestivation of the corolla lobes. Our revision comprises 11 species with a combined distribution from eastern India through southern China and Malesia, Melanesia, and Micronesia, although the group is absent from the Philippines. We resurrected S. bracteolatus, S. rubifolius, and S. warburgii as species to be recognized, and we corrected the misapplication of S. finlaysonianus, previously used for a species in S. series Benzoin. Styrax finlaysonianus and S. warburgii are segregated from the broader concept of S. agrestis recognized in prior treatments. The circumscriptions of the heretofore poorly delimited species S. confusus, S. faberi, and S. fortunei are clarified and their possible introgressants discussed. We observed unique combinations of characters in some problematic specimens whose taxonomic status remains unresolved because only single specimens with either flowers or fruits were available; at least some of these may represent undescribed species. Lectotypes are designated for Cyrta agrestis, S. argyi, S. bracteolatus, S. calvescens, S. casearifolius, S. confusus var. microphyllus, S. dasyanthus, S. dasyanthus var. cinerascens, S. faberi, S. finlaysonianus, S. formosanus, S. fortunei, S. fukienensis, S. henryi, S. henryi var. microcalyx, S. iopilinus, S. philadelphoides, S. rostratus, S. rubifolius, S. serrulatus var. agrestis, and S. virgatus. A neotype is designated for S. warburgii. Keys, descriptions, distribution maps, and conservation assessments are provided for all species. Styrax agrestis, S. bracteolatus, and S. rubifolius are rare endemics of conservation concern, with highly restricted distributions. 


2006 ◽  
Vol 85 (1) ◽  
pp. 209 ◽  
Author(s):  
Olof Biström ◽  
Anders N. Nilsson

The genus <em>Canthyporus</em> Zimmermann, 1919, is revised. A total of 35 species are recognized, all of them distributed within the Ethiopian Region, and with a centre of diversity in the South African Western Cape province. Descriptions of all species are given together with illustrations of habitus and male and female genitalia. A key to species (males), distribution maps, and ecological information are provided. Four new species are described from South Africa: <em>Canthyporus aenigmaticus</em> n.sp., <em>C</em>. <em>nimius</em> n.sp., <em>C. turneri</em> n.sp., and <em>C. wewalkai</em> n.sp. The species <em>C. congener</em> Omer-Cooper, 1956, is regarded as valid and not as a junior synonym of<em> C. canthydroides</em> (Régimbart, 1895). Lectotypes are designated for the following ten names:<em> C. alvei</em> Omer-Cooper, 1965, <em>C. consuetus </em>Omer-Cooper, 1965, <em>C. latus</em> Omer-Cooper, 1965, <em>C. lowryi </em>Omer-Cooper, 1965, <em>C. nebulosus</em> Omer-Cooper, 1965, <em>C. similator</em> Zimmermann, 1923, <em>C. simulator</em> Guignot, 1959, <em>C. testaceus</em> Zimmermann, 1923, <em>Hydroporus collaris</em> Boheman, 1848, and <em>Hydroporus hottentottus</em> Gemminger &amp; Harold, 1868. A parsimony analysis based on 32 morphological characters found 28 shortest trees. Monophyly of the genus <em>Canthyporus</em> is supported mainly by the presence of an anterior ligula on the ventral side of the elytron. Four species groups are recognized within the genus: (1) <em>canthydroides</em> group, including ten species in Namibia and South Africa; (2) <em>exilis</em> group, including four species in Lesotho and South Africa; (3) <em>hottentottus</em> group, including 18 species from the Democratic Republic of the Congo, Ethiopia, Kenya, Lesotho, Madagascar, South Africa, Swaziland, Tanzania, and Zimbabwe; and (4) <em>lateralis</em> group, including three species from South Africa.


2001 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Ian R. Thompson

Eastern Australian forms of the Australian endemic genus Hovea R.Br. have proved taxonomically difficult. A morphometric analysis of eastern forms, excluding the morphologically distant Hovea longipes Benth., is presented. This analysis provides the basis for a taxonomic revision and keys, which are also presented here. Of the 31 species recognised, the following 17 species are described here as new: H. angustissima, H. asperifolia, H. clavata, H. cymbiformis, H. densivellosa, H. graniticola, H. impressinerva, H. lorata, H. magnibractea, H. nana, H. nitida, H. parvicalyx, H. pedunculata, H. similis, H. speciosa, H. tasmanica, and H. tholiformis. A new subspecies, H. asperifolia ssp. spinosissima, is also described. Hovea ramulosa A.Cunn. ex Lindl., H. apiculata A.Cunn. ex G.Don and H. heterophylla A.Cunn. ex Hook.f. are reinstated as species.


ZooKeys ◽  
2018 ◽  
Vol 753 ◽  
pp. 23-82
Author(s):  
Ittai Renan ◽  
Thorsten Assmann ◽  
Amnon Freidberg

The south-west Palaearctic Graphipterusserrator group is revised. The systematic concept of the G.serrator group has undergone many changes during the last two centuries, and several different classifications have been published in recent decades. Here, the numerical taxonomy approach is used with the morphological characterization similarity level of the sympatric taxa in order to delimit allopatrically occurring taxa at the species and subspecies level. A key to the species and distribution maps are provided along with analyses of the conservation status and habitat preferences of the taxa. The Graphipterusserrator group currently comprises 16 taxa. Five new species are described: Graphipterusmagnus Renan &amp; Assmann, sp. n., Graphipterusmauretensis Renan &amp; Assmann, sp. n., Graphipteruspiniamitaii Renan &amp; Freidberg, sp. n., Graphipterussharonae Renan &amp; Assmann, sp. n., and Graphipterusstagonopsis Renan &amp; Assmann, sp. n. In addition, five taxa are revalidated to full species status: Graphipterusheydeni Kraatz, 1890, stat. rest. (lectotype designated), Graphipterusmultiguttatus (Olivier, 1790), stat. rest. (lectotype designated), Graphipteruspeletieri Laporte de Castelnau, 1840, stat. rest. (the frequently used name lepeletieri is an error), Graphipterusrotundatus Klug, 1832, stat. rest. (lectotype designated), and Graphipterusvaldanii Guérin-Méneville, 1859 stat. rest., and a full species status is proposed for Graphipterusreymondi Antoine, 1953, stat. n. One new synonymy is proposed: Graphipteruskindermanni Chaudoir, 1871, syn. n. of Carabusmultiguttatus Olivier, 1790. Lectotype designations were made for Graphipterusheydeni, Graphipterusminutus Dejean, 1822, Graphipterusmultiguttatus, and Graphipterusrotundatus. Neotype designations were made for Graphipterusreichei Guérin-Méneville, 1859, Graphipterusintermedius Guérin-Méneville, 1859, and Graphipterusvaldanii Guérin-Méneville, 1859.


PhytoKeys ◽  
2020 ◽  
Vol 151 ◽  
pp. 1-47
Author(s):  
Juliet A. Wege

A taxonomic revision of the Australian endemic genus Levenhookia R.Br. (Stylidiaceae) recognises 12 species, of which L. aestiva Wege, sp. nov. from south-western Australia is newly described. Levenhookia preissii (Sond.) F.Muell. is lectotypified and recircumscribed as a Swan Coastal Plain endemic, resulting in its addition to the Threatened and Priority Flora List for Western Australia. Lectotypes are also selected for L. dubia Sond., L. leptantha Benth., L. sonderi (F.Muell.) F.Muell. and L. stipitata (Benth.) F.Muell. ex Benth. Verification of herbarium records has expanded the known distribution of L. murfetii Lowrie &amp; Conran and L. pulcherrima Carlquist and has confirmed the widespread distribution of L. dubia across southern Australia including Tasmania, where it is currently listed as extinct-surveys based on information gleaned from historical collections may lead to its rediscovery in this State. Descriptions, distribution maps and photographs for all species are provided along with a key to species.


Zootaxa ◽  
2020 ◽  
Vol 4830 (3) ◽  
pp. 503-543
Author(s):  
ADALBERTO DANTAS DE MEDEIROS ◽  
DIEGO RODRIGO DOLIBAINA ◽  
EDUARDO CARNEIRO ◽  
OLAF HERMANN HENDRIK MIELKE ◽  
MIRNA MARTINS CASAGRANDE

The South American genus Panca Evans, 1955 and its respective species are revised. Previous to this study, the genus included solely its type species, Lerodea subpunctuli Hayward, 1934, until Panca moseri Dolibaina, Carneiro & O. Mielke, 2017 was described recently. However, as a result of a broader morphological study including closely related genera, we here propose that Panca assembles 12 species, most of which inhabit open environments such as the Cerrado biome and the natural grasslands of the Atlantic Forest biome. Eight species formerly included among other genera of Moncina are here combined with Panca: Panca satyr (Evans, 1955) comb. nov., Panca tobiasi (Mielke, 1992) comb. nov., Panca trogon (Evans, 1955) comb. nov., Panca steinhauseri (Dolibaina & A. Warren, 2015) comb. nov., Panca acroleuca (Plötz, 1884) comb. nov., and Panca mirnae (O. Mielke, Dolibaina, Carneiro & A. Warren, 2015) comb. nov. (all formerly in Artines Godman, 1901), Panca paulo (Bell, 1932) comb. nov. (formerly in Eutocus Godman, 1901), and Panca mictra (Evans, 1955) comb. nov. (formerly in Vidius Evans, 1955). Additionally, two new species are described from Brazil: Panca puri Medeiros, O. Mielke & Casagrande sp. nov. (from Pará, Pernambuco, Minas Gerais, Rio de Janeiro and Paraná) and Panca xavante Medeiros, O. Mielke & Dolibaina sp. nov. (from Mato Grosso, Goiás, Distrito Federal and Minas Gerais). A neotype for Apaustus acroleuca Plötz, 1884 is designated. Illustrations of the male and female genitalia and distribution maps are presented for all the species of Panca and an identification key is provided for both sexes. 


2000 ◽  
Vol 21 (2) ◽  
pp. 169-176 ◽  
Author(s):  
Robert Murphy ◽  
Ross MacCulloch ◽  
Jinzhong Fu ◽  
Ilya Darevsky

AbstractDiversity at 35 allozyme loci was examined in nine populations of the taxa currently included in Darevskia saxicola. The data support the recognition of the subspecies Darevskia s. saxicola and D. s. lindholmi as species. The remaining subspecies D. s. brauneri, D. s. darevskii and D. s. szczerbaki are conspecific although they can no longer be referred to Darevskia saxicola, but must be referred to Darevskia brauneri, whose name has priority. Considerable population substructuring was observed among the subspecies of Darevskia brauneri.


2001 ◽  
Vol 14 (1) ◽  
pp. 101
Author(s):  
C. F. Wilkins ◽  
J. A. Chappill

Taxonomic revision of the endemic Australian genus Hannafordia F.Muell. identified five taxa, including three recognised species, a new subspecies H. quadrivalvis F.Muell. subsp. recurva C.F.Wilkins and a new subspecific combination H. bissillii F.Muell. subsp. latifolia (E.Pritzel) C.F.Wilkins. Taxonomic descriptions, a key, distribution maps, illustrations, anatomical findings and seed and seedling morphology are presented. A chromosome number of n = 10 is the first published record for the genus.


Sign in / Sign up

Export Citation Format

Share Document