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A foundation monograph of Convolvulus L. (Convolvulaceae).

Wood JR, Williams BR, Mitchell TC, Carine MA, Harris DJ, Scotland RW - PhytoKeys (2015)

Bottom Line: Ten taxa are given new status and recognised at new ranks: Convolvulusnamaquensis (Schltr. ex.The status of various infraspecific taxa is clarified and numerous taxa are lectotypified.This account represents a new initiative in terms of taxonomic monography, being an attempt to bring together the global approach of the traditional monograph with the more pragmatic and identification-focussed approach of most current floras while at the same time being informed by insights from molecular systematics.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Sciences, South Parks Road, University of Oxford, OX1 3RB, UK ; Honorary Research Associate, Royal Botanic Gardens, Kew.

ABSTRACT
A global revision of Convolvulus L. is presented, Calystegia R.Br. being excluded on pragmatic grounds. One hundred and ninety species are recognised with the greatest diversity in the Irano-Turanian region. All recognised species are described and the majority are illustrated. Distribution details, keys to species identification and taxonomic notes are provided. Four new species, Convolvulusaustroafricanus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvulusiranicus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvuluspeninsularis J.R.I.Wood & R.W.Scotland, sp. nov. and Convolvulusxanthopotamicus J.R.I.Wood & R.W.Scotland, sp. nov., one new subspecies Convolvuluschinensissubsp.triangularis J.R.I.Wood & R.W.Scotland, subsp. nov., and two new varieties Convolvulusequitansvar.lindheimeri J.R.I.Wood & R.W.Scotland, var. nov., Convolvulusglomeratusvar.sachalitarum J.R.I.Wood & R.W.Scotland, var. nov. are described. Convolvulusincisodentatus J.R.I.Wood & R.W.Scotland, nom. nov., is provided as a replacement name for the illegitimate Convolvulusincisus Choisy. Several species treated as synonyms of other species in recent publications are reinstated including Convolvuluschinensis Ker-Gawl., Convolvulusspinifer M.Popov., Convolvulusrandii Rendle and Convolvulusaschersonii Engl. Ten taxa are given new status and recognised at new ranks: Convolvulusnamaquensis (Schltr. ex. A.Meeuse) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushermanniaesubsp.erosus (Desr.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscrenatifoliussubsp.montevidensis (Spreng.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulusfruticulosussubsp.glandulosus (Webb) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscapituliferussubsp.foliaceus (Verdc.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushystrixsubsp.ruspolii (Dammer ex Hallier f.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushystrixsubsp.inermis (Chiov.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulusrottlerianussubsp.stocksii (Boiss.) J.R.I.Wood & R.W.Scotland, comb. et stat. nov., Convolvuluscalvertiisubsp.ruprechtii (Boiss.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscephalopodussubsp.bushiricus (Bornm.) J.R.I.Wood & R.W.Scotland, stat. nov. The status of various infraspecific taxa is clarified and numerous taxa are lectotypified. This account represents a new initiative in terms of taxonomic monography, being an attempt to bring together the global approach of the traditional monograph with the more pragmatic and identification-focussed approach of most current floras while at the same time being informed by insights from molecular systematics.

No MeSH data available.


Related in: MedlinePlus

Summary cladogram showing major groupings resolved in Convolvulus based on a phylogenetic analysis of 140 species of Convolvulus and 19 species of Calystegia analysed for matK, rbcL and ITS. For details of clades, see text.
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Figure 1: Summary cladogram showing major groupings resolved in Convolvulus based on a phylogenetic analysis of 140 species of Convolvulus and 19 species of Calystegia analysed for matK, rbcL and ITS. For details of clades, see text.

Mentions: The phylogenetic and biogeographic implications of the results are discussed elsewhere (Williams et al. 2014). However, a summary cladogram is provided in Figure 1. The results concur with those of (Carine et al. 2004) in highlighting the non-monophyly of infrageneric groups proposed originally by (Boissier 1875) and elaborated by Peter (1891), Petrov (1935) and Sa’ad (1967) and in recognising two major clades within the genus (Figure 1, Clades X and Y). Clade X comprises species that are mostly annual or perennial herbs, sometimes woody at the base and typically with a trailing or climbing habit and leaves that are distinctly petiolate. Calystegia (Clade D) is resolved in this clade. Clade Y mostly comprises erect shrubs, with indistinct petioles.


A foundation monograph of Convolvulus L. (Convolvulaceae).

Wood JR, Williams BR, Mitchell TC, Carine MA, Harris DJ, Scotland RW - PhytoKeys (2015)

Summary cladogram showing major groupings resolved in Convolvulus based on a phylogenetic analysis of 140 species of Convolvulus and 19 species of Calystegia analysed for matK, rbcL and ITS. For details of clades, see text.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4489078&req=5

Figure 1: Summary cladogram showing major groupings resolved in Convolvulus based on a phylogenetic analysis of 140 species of Convolvulus and 19 species of Calystegia analysed for matK, rbcL and ITS. For details of clades, see text.
Mentions: The phylogenetic and biogeographic implications of the results are discussed elsewhere (Williams et al. 2014). However, a summary cladogram is provided in Figure 1. The results concur with those of (Carine et al. 2004) in highlighting the non-monophyly of infrageneric groups proposed originally by (Boissier 1875) and elaborated by Peter (1891), Petrov (1935) and Sa’ad (1967) and in recognising two major clades within the genus (Figure 1, Clades X and Y). Clade X comprises species that are mostly annual or perennial herbs, sometimes woody at the base and typically with a trailing or climbing habit and leaves that are distinctly petiolate. Calystegia (Clade D) is resolved in this clade. Clade Y mostly comprises erect shrubs, with indistinct petioles.

Bottom Line: Ten taxa are given new status and recognised at new ranks: Convolvulusnamaquensis (Schltr. ex.The status of various infraspecific taxa is clarified and numerous taxa are lectotypified.This account represents a new initiative in terms of taxonomic monography, being an attempt to bring together the global approach of the traditional monograph with the more pragmatic and identification-focussed approach of most current floras while at the same time being informed by insights from molecular systematics.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Sciences, South Parks Road, University of Oxford, OX1 3RB, UK ; Honorary Research Associate, Royal Botanic Gardens, Kew.

ABSTRACT
A global revision of Convolvulus L. is presented, Calystegia R.Br. being excluded on pragmatic grounds. One hundred and ninety species are recognised with the greatest diversity in the Irano-Turanian region. All recognised species are described and the majority are illustrated. Distribution details, keys to species identification and taxonomic notes are provided. Four new species, Convolvulusaustroafricanus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvulusiranicus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvuluspeninsularis J.R.I.Wood & R.W.Scotland, sp. nov. and Convolvulusxanthopotamicus J.R.I.Wood & R.W.Scotland, sp. nov., one new subspecies Convolvuluschinensissubsp.triangularis J.R.I.Wood & R.W.Scotland, subsp. nov., and two new varieties Convolvulusequitansvar.lindheimeri J.R.I.Wood & R.W.Scotland, var. nov., Convolvulusglomeratusvar.sachalitarum J.R.I.Wood & R.W.Scotland, var. nov. are described. Convolvulusincisodentatus J.R.I.Wood & R.W.Scotland, nom. nov., is provided as a replacement name for the illegitimate Convolvulusincisus Choisy. Several species treated as synonyms of other species in recent publications are reinstated including Convolvuluschinensis Ker-Gawl., Convolvulusspinifer M.Popov., Convolvulusrandii Rendle and Convolvulusaschersonii Engl. Ten taxa are given new status and recognised at new ranks: Convolvulusnamaquensis (Schltr. ex. A.Meeuse) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushermanniaesubsp.erosus (Desr.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscrenatifoliussubsp.montevidensis (Spreng.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulusfruticulosussubsp.glandulosus (Webb) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscapituliferussubsp.foliaceus (Verdc.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushystrixsubsp.ruspolii (Dammer ex Hallier f.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulushystrixsubsp.inermis (Chiov.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulusrottlerianussubsp.stocksii (Boiss.) J.R.I.Wood & R.W.Scotland, comb. et stat. nov., Convolvuluscalvertiisubsp.ruprechtii (Boiss.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvuluscephalopodussubsp.bushiricus (Bornm.) J.R.I.Wood & R.W.Scotland, stat. nov. The status of various infraspecific taxa is clarified and numerous taxa are lectotypified. This account represents a new initiative in terms of taxonomic monography, being an attempt to bring together the global approach of the traditional monograph with the more pragmatic and identification-focussed approach of most current floras while at the same time being informed by insights from molecular systematics.

No MeSH data available.


Related in: MedlinePlus