Impatiens (Balsaminaceae) Diversity and Conservation Status  in Mount Singgalang, West Sumatra

Utami, Ning Wikan; Tihurua, Eka Fatmawati

doi:10.14203/bkr.v24i3.744

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“…In Indonesia, there are 52 species of Impatiens and the species diversity and endemism is particularily high in Sumatra (Utami et al 2022). Some studies of Impatiens have been conducted in Indonesia and several new species have been proposed (Blume 1825, Hasskarl 1858, Zollinger 1858, Ridley 1925, Backer 1935, Backer and Bakhuizen van den Brink 1963, Grey‐Wilson 1980c, 1989, Shimizu 1987, Shimizu and Utami 1997, Utami and Shimizu 1998, 2005, van Steenis 2010, Utami and Wiriadinata 2010, Utami 2005, 2006, 2009, 2011, 2012a, 2012b, 2013, 2014, 2020, 2021, Renjana et al 2021, Utami and Tihurua 2021, Utami et al 2022), however, none provide a whole‐country list of species. In this paper, we present the first country level list of Impatiens in Indonesia based on the results of herbarium examination.…”

Section: Introductionmentioning

confidence: 99%

Annotated checklist of Indonesian Impatiens (Balsaminaceae)

Utami,

Damayanto

2023

Nordic Journal of Botany

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Impatiens is a genus of flowering plants widely distributed in Indonesia, with a high level of endemism. Some studies about on Impatiens have been conducted in Indonesia and several new species have recently been proposed, however, a list of all Indonesian Impatiens species has never been provided. Here, such a checklist of the Indonesian Impatiens species is presented to provide a comprehensive and up‐to‐date inventory of this genus in the region. There are 52 species, plus 3 subspecies and 7 varieties, of Impatiens in Indonesia. Most of the species are distributed in Sumatra, some in Java, Sulawesi, Kalimantan (Borneo), Lesser Sunda Islands, Maluku and Papua. Sumatra has the highest number of Impatiens species in Indonesia (45 species), while the Maluku region has the least (two species). Most of the species are native (50 species) and endemic (46 species), with Sumatra being the endemic hotspot (39 species). Some Impatiens species, such as I. dewildeana, have expanded their distribution to new areas. The conservation status of Impatiens species in Indonesia has not been assessed previously, therefore, we follow IUCN, as a reference for determining the status of Impatiens in Indonesia, especially those endemic to Sumatra. It is concluded that a majority of the species is threatened, and several may already be extinct.

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Section: Introductionmentioning

confidence: 99%

Annotated checklist of Indonesian Impatiens (Balsaminaceae)

Utami,

Damayanto

2023

Nordic Journal of Botany

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The Mexican Balsam, Impatiens mexicana Rydb: A Redescription Based on Morphological and Phylogenetic Studies, with an Update of the Current Geographical Range of the Species

Monzalvo,

Escorcia-Guerrero,

García-Montes

et al. 2024

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Impatiens mexicana is a native balsam restricted to the cloud forests of central and southwest Mexico, which is currently known to exist in four states (Zacatecas, Veracruz, Puebla, and Oaxaca), and is probably threatened by geographic restriction. Morphological and distributional information about this species is still scarce, with only a couple of investigations since its first description in 1910, which means the phylogenetic position of this species has yet to be placed. In order to contribute to knowledge of I. mexicana, morphological and molecular studies were carried out with material collected in the localities of Hidalgo, Veracruz, and Oaxaca, during expeditions from July to October 2021 and in 2022. The specimens selected were measured, photographed, and compared with morphological information from the six American balsams. At the same time, phylogenetic studies were carried out by using two regions of the cpDNA and one of the nrDNA. We report I. mexicana for the first time in Hidalgo state, and identify new registers in the Veracruz and Oaxaca localities, thus increasing the knowledge in its geographic distribution. We also redescribe the Mexican balsam by using new and complementary traits: we note that while the species is morphologically similar to I. capensis, it is distinguished by differences in flower color, the distribution of spot patterns on the upper petal, lower sepal, and lateral petals, and geographic information such as endemic geographic distribution in Mexico’s Tropical Montane Cloud Forest (TMCF). We also carried out phylogenetic analyses by using ITS and ITS + atpb-rbcL, which showed the Mexican balsam was independent from its Asian-American congeners. Interestingly, our genetic distance analyses reveal differences of 0.01–0.16% between I. mexicana and the other North American congeners that use ITS, atpb-rbcL and trnL-F, both independently and as concatenated genes: this low divergence most likely occurred because of the recent diversification of the group. However, both future redescriptions and phylogenetic studies in American species are imperative, as this will enable better discrimination.

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Impatiens (Balsaminaceae) Diversity and Conservation Status in Mount Singgalang, West Sumatra

Cited by 2 publications

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Annotated checklist of Indonesian Impatiens (Balsaminaceae)

Annotated checklist of Indonesian Impatiens (Balsaminaceae)

The Mexican Balsam, Impatiens mexicana Rydb: A Redescription Based on Morphological and Phylogenetic Studies, with an Update of the Current Geographical Range of the Species

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