A Revision of Sumatran Impatiens: Studies in Balsaminaceae: VIII

Grey-Wilson, C.

doi:10.2307/4114646

Cited by 22 publications

(52 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most studies on Impatiens are confined to a specific geographical region and provide purely descriptive taxonomic treatments. For example, Chen (, ) and Bhaskar () focused on Chinese and southern Indian species, respectively, and Grey‐Wilson (,b, ) separately studied the Papuasian, African, and Sumatran species. All south‐east Asian, Indian (including Sri Lankan), and African Impatiens originated from south‐west China, and each of these has evolved independently at least twice (Yuan et al., ; Janssens et al., , ), further complicating the situation.…”

Section: Introductionmentioning

confidence: 99%

Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification

et al. 2015

View full text Add to dashboard Cite

Impatiens L. is one of the largest angiosperm genera, containing over 1000 species, and is notorious for its taxonomic difficulty. Here, we present, to our knowledge, the most comprehensive phylogenetic analysis of the genus to date based on a total evidence approach. Forty-six morphological characters, mainly obtained from our own investigations, are combined with sequence data from three genetic regions, including nuclear ribosomal ITS and plastid atpB-rbcL and trnL-F. We include 150 Impatiens species representing all clades recovered by previous phylogenetic analyses as well as three outgroups. Maximum-parsimony and Bayesian inference methods were used to infer phylogenetic relationships. Our analyses concur with previous studies, but in most cases provide stronger support. Impatiens splits into two major clades. For the first time, we report that species with three-colpate pollen and four carpels form a monophyletic group (clade I). Within clade II, seven well-supported subclades are recognized. Within this phylogenetic framework, character evolution is reconstructed, and diagnostic morphological characters for different clades and subclades are identified and discussed. Based on both morphological and molecular evidence, a new classification outline is presented, in which Impatiens is divided into two subgenera, subgen. Clavicarpa and subgen. Impatiens; the latter is further subdivided into seven sections.

show abstract

Section: Introductionmentioning

confidence: 99%

Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The largest concentration of Impatiens species is found in China and Southeast Asia, including Myanmar, Thailand, Laos, Cambodia, Singapore, Malaysia, Indonesia, the Philippines, Timor-Leste, Brunei, and Papua New guinea (Hooker 1874;Shimizu 1970;Grey-Wilson 1989b;Kress et al 2003;Chen et al 2008). Taxonomic treatment of species from this region has been problemetic, mainly due to insufficient studies.…”

mentioning

confidence: 99%

Phylogenetic Analyses of Molecular Data and Reconstruction of Morphological Character Evolution in Asian <I>Impatiens</I> section <I>Semeiocardium</I> (Balsaminaceae)

Ruchisansakun¹,

Niet²,

Janssens³

et al. 2016

Systematic Botany

View full text Add to dashboard Cite

“…At first glance it even looks like a species of Paphiopedilum Pfitzer. Grey-Wilson (1989) noted that, within Malesia, Sumatra seems to correspond to a centre of species diversity and its evolutionary complexity is unparalleled amongst the islands of South East Asia. Therefore, it is not surprising that many new taxa of Impatiens have been, and are likely to be, found on Sumatra.…”

Section: Introductionmentioning

confidence: 97%

“…The genus was revised for Sumatra by Grey-Wilson (1989) who recognised 29 species, of which 20 taxa were new. Recently, several new species have been discovered and have added to this number (Shimizu & Utami 1997;Utami 2005Utami , 2009.…”

Section: Introductionmentioning

confidence: 99%

Impatiens kunyitensis (Balsaminaceae), a new species from Sumatra, Indonesia

Utami

2011

Kew Bull

View full text Add to dashboard Cite

A new species of Impatiens, I. kunyitensis from Kerinci Seblat National Park,West Sumatra, Indonesia is described and illustrated. It has a unique combination of characters, including red and green stems and white flowers in which the lower sepal is bucciniform and abruptly constricted into a curved, short, violet spur. This combination of characters makes determining the relationships of I. kunyitensis difficult.

show abstract

A Revision of Sumatran Impatiens: Studies in Balsaminaceae: VIII

Cited by 22 publications

References 0 publications

Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification

Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification

Phylogenetic Analyses of Molecular Data and Reconstruction of Morphological Character Evolution in Asian <I>Impatiens</I> section <I>Semeiocardium</I> (Balsaminaceae)

Impatiens kunyitensis (Balsaminaceae), a new species from Sumatra, Indonesia

Contact Info

Product

Resources

About