Begonia bimaensis, a new species of Begonia from Sumbawa Island, Indonesia

Abstract

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.

Perbanyakan Begonia Bimaensis Undaharta & Ardaka Dengan Teknik Kultur Jaringan

“…Jumlah tepal pada bunga betina dan bentuk sayap ovarium memberikan perbedaan lebih jauh. Bunga betina B. bimaensis memiliki empat tepal sedangkan pada B. sendangensis memiliki tiga tepal; pada B. bimaensis, bentuk sayap di ovarium sangat khas, berbentuk segitiga dan kebanyakan berujung pada apex (Undaharta et al, 2015).…”

A New Species of Begonia (Begoniaceae) From Sumbawa, Lesser Sunda Islands, Indonesia

“…nov. Fig. 2 Similar to Begonia bimaensis Undaharta & Ardaka (Undaharta et al, 2015) but differs in tuber (absent vs. present), plant height up to 16 cm (vs. less than 10 cm), stipules lanceolate, 10-12 × 3 mm (ovate to elliptic, 3 × 1-2 mm), petiole from 1-13 cm long (vs. 3.5-7.5 cm long), peduncle 2-11 cm (vs. 3-6 cm), male and female flowers tepals abaxially hairy (vs. glabrous), number of stamen 24 (vs. 40), and female flower pedicels 9-10 mm long (vs. 2.5-4 mm long) and fruit pedicel 10-15 mm (vs. 2-5 mm long). globose, stamens ca.…”

“…The Lesser Sunda Islands (Nusa Tenggara) has five species recorded so far ie. Begonia bimaensis Undaharta & Ardaka (Undaharta et al, 2015), B. multangula Blume (Hughes et al, 2015a), B. sumbawaensis, B. jaranpusangensis and B. brangbosangensis (Girmansyah, 2016).…”

Three new species of Begonia (Begoniaceae) from Sumbawa Island, Indonesia

“…Begonia L. (Linnaeus, 1753), is currently estimated to have around 1803 species distributed throughout tropical and subtropical Asia, Africa and America (Hughes et al, 2015b). In Southeast Asia, Indonesia is a centre of diversity for Begonia and many new species are still being discovered (Girmansyah & Susanti, 2015;Hughes et al, 2015a;Undaharta et al, 2015). Currently, 231 accepted species of Begonia are known from Indonesia, distributed from Sumatra to Papua.…”

“…Currently, 231 accepted species of Begonia are known from Indonesia, distributed from Sumatra to Papua. In Sumbawa (West Nusa Tenggara), only three species have been recorded to date (Begonia bimaensis Undaharta & Ardaka (Undaharta et al, 2015), B. multangula Blume (Hughes et al, 2015b) and B. muricata Blume (Hughes, 2008). Some specimens previously attributed to Begonia muricata are included below in the new species B. sumbawaensis.…”