The Afro‐Madagascan genus<i>Warneckea</i>(Melastomataceae): Molecular systematics and revised infrageneric classification

Stone, Robert Douglas; Andreasen, Katarina

doi:10.1002/tax.591009

Cited by 25 publications

(26 citation statements)

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“…Warneckea cordiformis is placed in W. subgenus Carnosae on account of its combination of leaf blades with conspicuous network of purplish veinlets on the lower surface; sessile inflorescences agglomerated at the recently defoliated nodes; floral pedicels subtended by persistent, imbricate‐decussate bracts; patelliform calyx limb with lobes obsolete; and anther connectives bearing a minute, dorsal oil‐gland (Stone and Andreasen 2010). The new species would key to W. sansibarica in ‘Flora Zambesiaca’ and ‘Flora de Moçambique’ (Fernandes and Fernandes 1978, 1980), but is readily distinguished from W. sansibarica and other members of W. subgenus Carnosae by its relatively small, ovate to cordiform leaves and white flowers borne on short pedicels.…”

Section: Warneckea Cordiformis R D Stone Sp Nov (Fig 1)mentioning

confidence: 99%

“…The genus Warneckea Gilg comprises about 50 species of shrubs or small trees restricted to humid forests in Africa, Madagascar and Mauritius. Further morphological and molecular studies have shown that it is distinct from Memecylon L. (Jacques‐Félix 1978b, Stone 2006, Stone and Andreasen 2010). In the treatment of Memecylon s.l.…”

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confidence: 99%

“…Warneckea was recently subdivided into subgenus Warneckea (with three sections) and subgenus Carnosae (Jacq.‐Fél.) R. D. Stone, the latter group characterized by sessile inflorescences with long‐pedicellate flowers subtended by persistent, imbricate‐decussate bracts; hypanthium with free limb and calyx lobes obsolete; and embryo with two fleshy but unequal cotyledons (Jacques‐Félix 1985a, 1985b, Stone and Andreasen 2010). Subgenus Carnosae is found mainly in the east‐African coastal forests and northwestern Madagascar, with outlying populations in Malawi, Zimbabwe and Zambia.…”

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confidence: 99%

“…R. D. Stone & Q. Luke. There is no evidence of hybridization between these taxa, and they are readily discernible at both the morphological and DNA sequence levels (Vollesen 1980, Luke 2005, Stone and Luke 2009, Stone and Andreasen 2010). Recent investigations have further revealed that W. sousae (A. Fern.…”

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confidence: 99%

“…A. E. van Wyk, which was placed by Wickens (1975) in synonymy under W. sansibarica , is only superficially similar to that species and is properly placed in W. sect. Warneckea (Vollesen 1980, Stone and Andreasen 2010).…”

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confidence: 99%

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Warneckea cordiformis sp. nov. (Melastomataceae–Olisbeoideae) from a coastal dry forest in northern Mozambique

Stone

2013

Nordic Journal of Botany

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Described and illustrated is Warneckea cordiformis R. D. Stone, an evidently localized endemic of coastal dry forest in Mozambique's Cabo Delgado Province. In ‘Flora Zambesiaca’ the new species would key to W. sansibarica (Taub.) Jacq.‐Fél., from which it is readily distinguished by the much smaller, ovate to cordiform leaves and white, short‐pedicellate flowers. Because of its evidently very limited occurrence as well as on‐going anthropogenic threats, Warneckea cordiformis is here assessed as ‘Critically Endangered’ (CR) B1a,b(iii) according to IUCN criteria. A key is provided to the Mozambican species of Warneckea.

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Section: Warneckea Cordiformis R D Stone Sp Nov (Fig 1)mentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Warneckea cordiformis sp. nov. (Melastomataceae–Olisbeoideae) from a coastal dry forest in northern Mozambique

Stone

2013

Nordic Journal of Botany

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α,β‐Unsaturated Aldehydes in the Synthesis of Five‐Membered Heterocyclic Compounds with One Heteroatom: Recent Advances from Developments in Metal‐ and Organocatalysis

Keiko

Вчисло

2016

Asian J Org Chem

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The ever-increasing interest in the chemistry of five-membered heterocyclic compounds is due to their paramount importance in such essentialf ields as pharmacology, medicine, biology,o rganic synthesis of fine chemicals, agricultural chemistry,a nd the chemical industry.T his Review summarizesa nd highlights methodsf or the synthesis of five-membered O-, N-, and S-heterocycles based on transformations of a,b-enals. Over the last decade, these reactions, which often differ from the processes involving other a,bunsaturated carbonyl compounds in methodology andr esults, have been gathering momentum. Many of the catalytic and technological novelties discussed in the review,s uch as asymmetricm etal-and organocatalysis, multiple catalysts, one-pot multicomponent reactions proceeding through domino,c ascade, or tandem reactions, andm icrowave activation, promote the formation of diverset arget products, the structures of which becomes clear from the mechanistic schemesg iven in the review.T he mechanisms discussed reflect great advances in the chemo-, regio-, and stereoselectivity of the reactions with participation of a,b-alkenals, achieved in the last 15 years, which allowsn ew five-membered heteroarenes and related compounds (pyrroles, dihydropyrroles, pyrrolidines,f urans, thiophenes) to be synthesized.

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Systematics of Tibouchina and allies (Melastomataceae: Melastomateae): A new taxonomic classification

Guimarães

Michelangeli

Sosa

et al. 2019

TAXON

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Tibouchina (Melastomataceae: Melastomateae) is an exclusively Neotropical genus that currently includes close to 310 species. These were first described or assigned to 16 other genera, a reflection of the complex taxonomic and phylogenetic history of the genus. Previous phylogenetic analyses have shown that the genus is polyphyletic. Here we present an expanded analysis that includes representatives of 28 genera of New World Melastomateae, as well as representatives of Old World Melastomateae and members of the Marcetieae and Microlicieae. Over 300 species were sequenced for nrITS and the plastid spacers accD‐psaI and psbK‐psbL. We recovered a large clade of Neotropical Melastomateae that contains Tibouchina along with at least 13 other Neotropical genera. Moreover, Tibouchina is not recovered as monophyletic because three mostly Central American and five mostly Andean genera are nested within it, albeit each these genera are recovered as monophyletic. Many of the previously recognized sections of Tibouchina are recovered as monophyletic or paraphyletic providing a basis for a new classification. Tibouchina is here re‐circumscribed into four genera that are each monophyletic and easily diagnosable. This results in a narrowly circumscribed Tibouchina and the re‐establishment of Pleroma and Chaetogastra, and the description of a new genus, Andesanthus. Pleroma now also includes Itatiaia, Microlepis and Svitramia. Brachyotum is maintained until its relationship to Chaetogastra can be further examined. This new taxonomic arrangement is more informative and convenient than merging eight other genera into Tibouchina. An identification key, descriptions of genera, and lists of taxa with their current generic assignment and necessary nomenclatural novelties are also presented here.

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The Afro‐Madagascan genusWarneckea(Melastomataceae): Molecular systematics and revised infrageneric classification

Cited by 25 publications

References 20 publications

Warneckea cordiformis sp. nov. (Melastomataceae–Olisbeoideae) from a coastal dry forest in northern Mozambique

Warneckea cordiformis sp. nov. (Melastomataceae–Olisbeoideae) from a coastal dry forest in northern Mozambique

α,β‐Unsaturated Aldehydes in the Synthesis of Five‐Membered Heterocyclic Compounds with One Heteroatom: Recent Advances from Developments in Metal‐ and Organocatalysis

Systematics of Tibouchina and allies (Melastomataceae: Melastomateae): A new taxonomic classification

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