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Begonia aketajawensis Ardi & D.C. Thomas. A. Plant habit in-situ (scale 10 cm); B. Juvenile plant in-situ (scale 5 cm); C. Cultivated juvenile plant (scale 2 cm); D. Male inflorescence (scale 2 cm); E. Male flowers (scale 1 cm); F. Female flower (scale 1 cm); G. Female flower (scale 1 cm); H. Infructescence (scale 1 cm); I. Ovary cross section (scale 5 mm). (Photos: A & D-H: Made Ardhaka; B: Yayan Wahyu; C: Wisnu H. Ardi; I: Daniel C. Thomas).
Source publication
Two new species of Begonia, Begonia holosericeoides Ardi & D.C. Thomas and B. aketajawensis Ardi & D.C. Thomas, are described from Aketajawe Lolobata National Park, Halmahera, Indonesia. The two species belong to Begonia section Petermannia. Begonia holosericea, previously only tentatively assigned to a section, is here assigned to section Peterman...
Context in source publication
Context 1
... Begonia specimens from BO, E, K, L and SING have been consulted, and hence it must be assumed, at least until more intensive col- lecting may reveal otherwise, that these new species have restricted ranges and are endemic to Hal- mahera island (Fig. 1). Diagnostic characters of the two new species and Begonia holosericea are illus- trated in Figs. ...
Similar publications
ARDHAKA, I. M., ARDI, W. H., UNDAHARTA, N. K. E. & TIRTA, I. G. 2016. A new species Begonia from Manusela National Park, Seram. Reinwardtia 15(1): 61 – 64. — A new species of Begonia, B. manuselaensis Ardhaka & Ardi, is described from Seram, Maluku province, Indonesia. The species is endemic to Seram and belongs to Begonia section Petermannia.
Citations
... In 2011 and 2012 the Fairchild Tropical Botanic Gardens and Bogor Botanic Gardens collaborated on an expedition commemorating David Farichild's visit to Halmahera. On this expedition, several collections of begonias were made, two of which were described as new species: B. aketajawensis Ardi & D.C.Thomas and B. holosericeoides Ardi & D.C.Thomas (Ardi et al., 2014). Subsequently several new species collected during exploration of the Moluccas by a team from Bali Botanic Gardens were published (Ardi and Thomas, 2015;Ardhaka et al., 2016;Unduharta and Ardi, 2016;Ardaka and Ardi, 2019). ...
... Identification key to the Begonia species in Sect. Petermannia in the Moluccas (modified from Ardi et al., 2014) Diagnosis. This species resembles Begonia lombokensis Girm. in its erect habit and two-tepaled female flowers, but it differs consistently by the verruculose petiol-lamina transition, distantly dentate to almost entire leaf margins, shorter male flowers pedicels (0.7-1 cm), a rounded anther apex, longer female flower pedicels (17-25 mm) and unequal ovary wings (one wing shorter than the other two). ...
Two new Begonia species from the Moluccas, Indonesia, are described: Begonia fairchildii and B. moluccana, Photo plates, notes on their distributions, habitat preferences, provisional IUCN conservation assessments and a key to Moluccan Begonia species are provided. Both species are provisionally assessed as Data Deficient (DD) regarding their conservation status.
... Begonia (Begoniaceae) is the fifth-largest flowering plant genus that comprises 2019 species . In Indonesia, the number of Begonia species reaches 250 species with a high level of endemism (Ardi et al., 2014a;2014b;Girmansyah & Susanti, 2015;Hughes et al., 2015;Undaharta & Ardi, 2016;Lin et al., 2017;Ardi & Hughes, 2018). Sumatra, for example, has an endemic level of up to 80% of the 65 species of Begonia that were recorded from this island (Hughes et al., 2015;Ardi & Hughes, 2018). ...
Three species of Begonias endemic to Java and Sumatra, namely Begonia leuserensis, Begonia atricha and Begonia scottii, were conserved in Cibodas Botanic Gardens as sources of germplasm for ornamental plant and/or medicines. However, the information on efficient hormones concentration and their culture media application through an in vitro propagation effort is still limited. Therefore, this study aimed to explain the growth response of three species of Begonias using various hormones concentrations and culture media through in vitro propagation. The culture media using Murashige & Skoog (MS) media that combinedwith 6-Benzyladenine (BA) dan Thidiazuron (TDZ) hormones in different concentrations i.e. 0.5 mg/L, 1 mg/L, 2 mg/L, and 3 mg/L. Observation parameter included shoot number, plantlets height, and leaves number. The data were analyzed using analysis of variance (ANOVA) with the F test at a 5% significance level. The results showed that three species of Begonias were observed to have different growth responses in the combination of MS+BA and MS+TDZ media. The combination of MS+TDZ media produces more shoots number, while the combination of MS+BA media influenced higher in leaves number. A concentration of 0.5 mg/L of hormone showed a good regeneration, therefore were recommended for in vitro propagation of Begonia species.
... Begonia (Begoniaceae) is the fifth-largest flowering plant genus that comprises 2019 species . In Indonesia, the number of Begonia species reaches 250 species with a high level of endemism (Ardi et al., 2014a;2014b;Girmansyah & Susanti, 2015;Hughes et al., 2015;Undaharta & Ardi, 2016;Lin et al., 2017;Ardi & Hughes, 2018). Sumatra, for example, has an endemic level of up to 80% of the 65 species of Begonia that were recorded from this island (Hughes et al., 2015;Ardi & Hughes, 2018). ...
Giam Siak Kecil Bukit Batu is a biosphere reserve which one of its functions is as a habitat for wildlife. However, biodiversity data in the Giam Siak Kecil Bukit Batu Biosphere Reserve (GSKBB-BR) is still very minimal, including insects (Coleoptera and Hemiptera). This research was conducted to determine the diversity of Coleoptera and Hemiptera in the GSKBB Biosphere Reserve, Riau, Indonesia. The research was carried out using an exploratory method using "lights trap". The results of the study found 30 species, from 11 families of the order Coleoptera (23 species) and Hemiptera (7 species) in the GSKBB-BR. The diversity index of Coleoptera and Hemiptera at the observation site was moderate (H = 2.73), with a high evenness index (0.80). Scarabaeidae (order Coleoptera) is the family with the highest number of species found (8 species), while the most abundant species were Tibicen linnei and Pomponia fusca (Cicadidae/Hemiptera). Based on their functional roles, Coleoptera and Hemiptera with the highest number are herbivores (17 species), followed by predators (7 species) and decomposers (3 species). The range of values for temperature and humidity at the research site are in normal conditions. The GSKBB-BR area is an important remaining habitat for wildlife in Riau, including various types of insects (Coleoptera and Hemiptera); whose potential still needs to be revealed, and must be managed properly.
... Among the regions of Indonesia, the Begonia flora of the Moluccas is one of the most poorly known due to the lack of collections from the islands. In recent years, four new species have been described, raising the total number of accepted species from the Moluccas to nine (Wiriadinata, 2012;Ardi et al, 2014;Ardi & Thomas, 2015;Ardhaka et al., 2016;) (see Table 1). ...
... & Wassh., B. heteroclinis Miq. ex Koord., and several Moluccan Begonia species [see Ardi et al., 2014b;Ardi & Thomas, 2015]). However, the complexly branching (paniculate-cymose), many-flowered male inflorescences, the relatively long peduncles of the female inflorescences (up to 4.2 cm long), and the relatively narrow wings (up to 5 mm at the widest point) differentiate Begonia matarombeoensis from species with a similarly low growth habit. ...
Based on collections from the Matarombeo limestone mountain range in Southeast Sulawesi, Indonesia, the two new species Begonia balgooyi D.C.Thomas & Ardi and B. matarombeoensis D.C.Thomas & Ardi are described and illustrated, and an amended description and a photo plate of B. watuwilensis Girm. are provided. These species are restricted to limestone habitats and endemic to Southeast Sulawesi. Provisional conservation assessments indicate an Endangered (EN) status for all three species.
... The number of species is now estimated to be more than 200, which are distributed from Sumatra to Papua, including in addition to the main islands numerous small islands. The island of Java has 15 species of indigenous Begonia, Sumatra 63 species, Kalimantan 8 species, Sulawesi 44, and Irian (New Guinea) 70 species (Ardi et al. 2014;Hughes et al. 2015a,b;Thomas et al. 2016). Begonia can be found in various types of habitat, ranging from karst hills and lowland tropical rain forests, up to mountain sites 2,400 m in asl.. ...
... The extinction was caused by habitat loss caused by land conversion to agriculture (Kiew 2005). (Ardi and Hughes 2010;Ardi 2014;Hartutiningsih 2008;Thomas 2012;Thomas et al. 2011;Wiriadinata 2012) Based on the observation of stem morphology in the native Begonia collection at Bogor Botanic Gardens, the habit of Begonia species can be classified into four types; they are erect or cane-like Begonia, rhizomatous Begonia, tuberous Begonia, and creeping or trailing scandent Begonia. ...
Indonesia has a diversity of indigenous (i.e. wild type) Begonia species that have never been artificially hybridized. They are usually situated in tropical rain forests, from the lowlands to the uplands (2400 m asl.). There are many Begonia species that have not yet been collected and conserved ex-situ. Hence exploration and conservation of this diversity needs to be exensively pursued. The conservation of lowland adapted Begonia has been carried out for the last ten years in the Bogor Botanic Gardens. The research reported here developed an inventory of the Begonia collection held in the green house of the Bogor Botanic Gardens nursery. The method used was a study of the plant expedition database which contains collection lists, locality of their discovery and ecological data for the localities. Plant collection registration, acclimatization, propagation and collection care were documented. Bogor Botanic Gardens has conserved 124 collections of Begonia, made up of 93 indigenous species and 31 exotic species. The reported origins for the collection are as follows: Java (9 accessions), Sumatra (37 accessions), Kalimantan (5 accessions), Sulawesi (11 accessions), Maluku (15 accessions), Papua (4 accessions), Bali and West Nusa Tenggara (6 accessions ) and East Nusa Tenggara (6 accessions). These wild Begonia have prospects for development as new ornamental plants and also as genetic material to research the creation of new Begonia varieties through artifial hybridization. © 2017, Society for Indonesian Biodiversity. All Rights Reserved.
... Towards a taxonomic study of Moluccan Begonia, Bali and Bogor Botanic Gardens have organized several field expeditions to the archipelago in recent years. The expeditions have brought back many important specimens, such as rediscovery of B. holosericea (TeijsmArdi et al., 2014) and B. galeolepis (Ardi & Thomas, 2015). In this paper we report the discovery of another new species in sect. ...
ARDHAKA, I. M., ARDI, W. H., UNDAHARTA, N. K. E. & TIRTA, I. G. 2016. A new species Begonia from Manusela National Park, Seram. Reinwardtia 15(1): 61 – 64. — A new species of Begonia, B. manuselaensis Ardhaka & Ardi, is described from Seram, Maluku province, Indonesia. The species is endemic to Seram and belongs to Begonia section Petermannia.
... The Moluccas have relatively few species compared to the other islands in the eastern part of Indonesia, Sulawesi and Papua. As for most of the region, the Begonia flora of the islands is poorly known, as indicated by recent new species discoveries (Wiriadinata, 2012;Ardi et al., 2014;Ardi & Thomas, 2015;Ardhaka et al., 2016;) and as-yet undescribed species in both living and herbarium collections. Currently there are eight species known from the Moluccas, of which six are endemic to the archipelago or locally endemic to a single island (Table 1). ...
... Identification key to Begonia in the Moluccas (updated from Ardi et al., 2014) 1a ...
... Halmahera Table 1. Begonia species of the Moluccas(Wiriadinata, 2012;Ardi et al., 2014;Ardi & Thomas, 2015;Hughes et al., 2015;Ardhaka et al., 2016). ...
ABSTRACT. A new species of Begonia, Begonia nephrophylla Undaharta & Ardi, is described from Manusela National Park, Seram Island, Moluccas, Indonesia. The species is endemic to Seram and belongs to Begonia section Petermannia. An illustration of the new species and a
key to the Moluccan species of Begonia is presented.
Keywords. Begonia, Indonesia, Moluccas, new species
... Our understanding of the Begonia L. flora of the Moluccas (also known as the Maluku Islands), an archipelago within Indonesia located between the islands of Sulawesi and New Guinea, is very limited because of the paucity of herbarium collections from the region and a lack of alpha-taxonomic baseline work on eastern Malesian Begonia. The Begonia Resource Centre comprises records of only 138 Moluccan Begonia specimens, most of which are not identified to species level, and the rest belonging to six species (Ardi et al., 2014; see identification key to the Moluccan species below). ...
... Recent expeditions by Bali Botanic Garden, and a joint expedition between Bogor Botanic Gardens and Fairchild Tropical Botanic Gardens to major islands of the Moluccas (Halmahera, Seram and Ternate), have brought to light material of several Begonia species that do not conform with any species previously reported from the archipelago. Three endemic species have recently been described (Wiriadinata, 2012;Ardi et al., 2014) from material collected on Halmahera, the largest island of the Moluccas, raising the total number of Moluccan species to six (Ardi et al., 2014). From the second largest island, Seram, Hughes (2008) reported only a single species, Begonia brachybotrys Merr. ...
... Recent expeditions by Bali Botanic Garden, and a joint expedition between Bogor Botanic Gardens and Fairchild Tropical Botanic Gardens to major islands of the Moluccas (Halmahera, Seram and Ternate), have brought to light material of several Begonia species that do not conform with any species previously reported from the archipelago. Three endemic species have recently been described (Wiriadinata, 2012;Ardi et al., 2014) from material collected on Halmahera, the largest island of the Moluccas, raising the total number of Moluccan species to six (Ardi et al., 2014). From the second largest island, Seram, Hughes (2008) reported only a single species, Begonia brachybotrys Merr. ...
... The pantropical genus Begonia L. is one of the largest genera of flowering plants, comprising more than 1700 species (Hughes, 2008 and the many species described since then). Southeast Asia is a hotspot of species diversity for Begonia (Hughes, 2008), with Indonesia being particularly rich in species and with many species still being discovered (Hughes, 2008;Thomas & Hughes, 2008;Girmansyah, 2009Girmansyah, , 2012Girmansyah et al., 2009;Hughes et al., 2009;Thomas et al., 2009Thomas et al., , 2011Ardi & Hughes, 2010;Wiriadinata, 2011;Ardi et al., 2013Ardi et al., , 2014Ardi, 2014;Lin & Peng, 2014). From these works the current estimate for the total number of Begonia species in Indonesia is 213 species. ...
A new species of Begonia sect. Reichenheimea, B. bimaensis Undaharta &
Ardaka, is described from Mt Muria in Bima District, Sumbawa Island, Indonesia. The species
is a narrow endemic, currently known from only one population, and has been assessed as
Vulnerable using IUCN criteria.
