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Field exploration of the flora of the Mekongga Mountainous area of Southeast Sulawesi was conducted from 2009 to 2011. Herbarium specimens collected during this exploration and additional collections from Herbarium Bogoriense (BO) included 21 species in nine genera of the family Gesneriaceae. These comprise one species of Aeschynanthus, four specie...
Citations
... This region has also been recognized as one of the global biodiversity hotspots (Shahabuddin et al. 2005). Notably, the island of Sulawesi has been the site for the discovery of numerous new plant species, as evidenced by various studies (Ardi et al. 2019;Atkins and Kartonegoro 2021;Brambach et al. 2016;Henderson et al. 2018;Kartonegoro and Potter 2014). Additionally, active research has focused on the Zingiberaceae taxon in Sulawesi, including aspects of its utilization (Ardiyani et al. 2017;Pitopang et al. 2019;Poulsen and Docot 2019;Ramadanil et al. 2019). ...
Host trees are vital for the survival of epiphytic orchids, providing necessary light and air circulation for optimal growth. Large trees with tall canopies contribute to the broader distribution of epiphytic orchids in forest areas. This research aimed to identify the characteristics of orchid host tree species in Lore Lindu National Park, considering both elevation zones and orchid growth zones. The research was conducted at various locations within the park, employing the field exploration survey method (cruise method). This method involved comprehensive exploration at each research site and establishing observation paths along pioneer lines, mainly where orchid host trees were found. The findings indicate the presence of 20 types of orchid host trees and 35 species of epiphytic orchids. The basal branching zone (Zone 3) was the most populated by epiphytic orchids on host trees, and the lowland forest was the elevation zone where most orchid host trees were found in Lore Lindu National Park, Central Sulawesi. Keywords: host trees, Lore Lindu National Park, orchids, zone distribution
... In mid-2019, a living specimen was collected from Gunung Klabat, Minahasa Utara Regency, Sulawesi Utara Province (vouchered in 2021), followed by four additional specimens collected in 2021 from Sulawesi Tengah Province, two from Toli Toli Regency and two from Parigi Moutong Regency. These are new records for the island, not mentioned in earlier literature (e.g., Mendum, 2004;Mendum & Atkins, 2004;Mendum et al., 2006;Kartonegoro & Potter, 2014). In the forest of Mount Klabat, the plant was found growing as an epiphytic climber on a tree trunk in a valley at an elevation of around 1000 m, while in Toli Toli and Parigi Moutong, this species was collected in lowland forests, at 227 m and 261 m, respectively. ...
Some new and noteworthy records of spermatophytes in the Wallacea region are presented. These include three new species records in Wallacea for Lasianthus chrysotrichus Lauterb. (Rubiaceae), Medinilla medinilliana (Gaudich.) Fosberg & Sachet (Melastomataceae) and Thottea tomentosa (Blume) Ding Hou (Aristolochiaceae); new collection records for Pandorea pandorana (Andrews) Steenis (Bignoniaceae) for both Sulawesi and Buru (Maluku Archipelago); a new record in Sulawesi for Aeschynanthus amboinensis (Merr.) Mendum (Gesneriaceae); extended distributions in Sulawesi for six species: Ficus lawesii King (Moraceae), Gaultheria celebensis (J.J.Sm.) Kron & P.W.Fritsch (Ericaceae), Gaultheria hendrianiana (Argent) Kron & P.W.Fritsch (Ericaceae), Gaultheria retusa (Sleumer) Kron & P.W.Fritsch (Ericaceae), Calanthe stenocentron (Schltr.) M.W.Chase et al. (Orchidaceae) and Rhododendron torajaense Craven (Ericaceae); and an extended distribution in Maluku for Begonia aptera Blume (Begoniaceae). The morphology of the poorly documented Sulawesi endemic Gaultheria celebensis (J.J.Sm.) Kron & P.W.Fritsch is discussed.
... Other than a recombination by Burtt (Burtt, 1990), no new names for Sulawesi Cyrtandra were then published for over 100 years (Mendum & Atkins, 2004). Fieldwork in North Sulawesi, Gorontalo, Central Sulawesi and Southeast Sulawesi in the early 2000s led to publication of a further 23 species (Atkins, 2004;Bone & Atkins, 2013;Kartonegoro & Potter, 2014;Kartonegoro et al., 2018). Four new species are described here, bringing the total for the island to 39. ...
... The others in the group are Cyrtandra balgooyi, C. gambutensis, C. gorontaloensis, C. parvicalyx and C. widjajae. Cyrtandra engleri is most similar to C. widjajae, a species originally described from Southeast Sulawesi (Kartonegoro & Potter, 2014) but that also extends into North Sulawesi. It can be distinguished from Cyrtandra widjajae most easily by the smaller number of lateral vein pairs (4 or 5 in C. engleri versus 8-10 in C. widjajae) and the short-acuminate leaf apices (2-5 mm long in C. engleri versus up to 20 mm long in C. widjajae). ...
... Etymology. This species is named after Elizabeth A. Widjaja (BO), bamboo taxonomist and one of the collectors of the type of this species (Kartonegoro & Potter, 2014). ...
Taxonomic evaluation of Cyrtandra (Gesneriaceae) from Sulawesi has resulted in the recognition of 39 species. Of these, four species are described as new here: Cyrtandra balgooyi H.J.Atkins & Karton., C. flavomaculata H.J.Atkins & Karton., C. longistamina H.J.Atkins & Karton. and C. parvicalyx H.J.Atkins & Karton. Eleven names are lectotypified and three names are placed in synonymy. Provisional conservation assessments suggest that seven of these species are Critically Endangered, six are Endangered, three are Vulnerable, two are Data Deficient and 21 are of Least Concern. Illustrations, distribution maps, and a key to the Cyrtandra species of Sulawesi are presented. Evaluasi taksonomi Cyrtandra (Gesneriaceae) dari Sulawesi menghasilkan pengenalan 39 jenis. Diantara jenis-jenis tersebut, empat jenis dideskripsikan sebagai jenis yang baru disini: Cyrtandra balgooyi H.J.Atkins & Karton., C. flavomaculata H.J.Atkins & Karton., C. longistamina H.J.Atkins & Karton. and C. parvicalyx H.J.Atkins & Karton. Sebelas nama telah dilektotipifikasikan dan tiga nama ditempatkan dalam sinonim. Penilaian konservasi sementara menyarankan bahwa tujuh dari jenisjenis ini dinyatakan Critically Endangered, enam dinyatakan Endangered, tiga dinyatakan Vulnerable, dua dinyatakan Data Deficient dan 21 sisanya dinyatakan Least Concern. Ilustrasi, peta distribusi dan kunci identifikasi untuk jenis-jenis Cyrtandra dari Sulawesi disajikan.
... Petiole 2-6 × ca. 1 mm, flattened, grooved above, laxly scaly. Flower buds Mekongga not include to conservation area like Nature conservation or National Park (Kartonegoro, 2014). The damage habitat is likely to be caused more by fire than from lightning. ...
ARGENT, G. & MAMBRASAR, Y. M. 2019. Rhododendron widjajae (Ericaceae, section Schistanthe) a new species from Sulawesi. Reinwardtia 18(1): 27‒30. — A new species of Rhododendron section Schistanthe (= subgenus Vireya) is described, Rhododendron widjajae Argent & Mambrasar. It is compared with the two most similar species and the differences demonstrated.
Two new endemic species of Rhododendron of subgenus Vireya from Sulawesi are described, viz. R. ardii Hutabarat, Mambrasar & Mustaqim, and R. tjiasmantoi Mustaqim, Mambrasar & Hutabarat. Detailed morphological descriptions accompanied by a map of geographic distributions, plant illustrations, and discussions on habitat, ecology, and preliminary conservation status are presented.
Eleven new species of Cyrtandra (Gesneriaceae) from Sulawesi are described and illustrated: C. albiflora Karton. & H.J.Atkins, C. boliohutensis Karton. & H.J.Atkins, C. gambutensis Karton. & H.J.Atkins, C. hekensis Karton. & H.J.Atkins, C. hendrianii Karton. & H.J.Atkins, C. hispidula Karton. & H.J.Atkins, C. kinhoii Karton. & H.J.Atkins, C. multinervis Karton. & R.Bone, C. nitida Karton. & H.J.Atkins, C. rantemarioensis Karton. & R.Bone and C. rubribracteata Karton. & H.J.Atkins. Illustrations, maps and preliminary conservation assessments are provided for all the species.
Compared to Java the flora of Bali is poorly known. A checklist has been prepared based on literature and collections. The focus is on indigenous species, but the distinction between indigenous and naturalized species is not always clear. This checklist is therefore very provisional. The flora of the much smaller island state Singapore is much richer, probably mainly due to undercollecting of Bali.
Cercospora brunfelsiicola on Brunfelsia uniflora is proposed as a new species based on a combination of molecular phylogenetic and morphological data analyses. The molecular phylogenetic analysis based on combined multilocus analyses of the Internal Transcribed Spacer (ITS), part of the elongation factor 1–a gene (EF1–a), and part of the calmodulin (CAL) gene regions showed that C. brunfelsiicola is phylogenetically distinguishable from other Cercospora species, including members of the C. apii s. lat. complex. Morphologically, C. brunfelsiicola differs from other closely related Cercospora species, in particular C. acaciae-mangii, by forming lesions with indistinct margin, larger stromata [(32) 48.5 ± 10.6 (68) ?m diam.], and filiform to narrowly obclavate conidia [(45) 59 ± 9.1 (72) × (2.5) 2.5 ± 0.2 (3) ?m].
