Background and aims – Cola, the second largest genus of the Malvaceae-Sterculioideae comprises 100–135 small to large tree species confined in nature to African forests, though cultivated elsewhere. Current species distribution ranges show that the genus is highly diverse in the seasonally wet forests along the Nigeria-Cameroon border, including the Korup National Park (KNP). In this paper we examine the diversity and abundance of Cola in KNP compared to other forests for which comparable data are available. We also describe two novelties in the genus.Methods – We used inventory data from a 50-ha permanent plot in southern KNP where all Cola trees and saplings down to 1 cm in diameter were tagged, mapped and identified. Additional collections of the genus came from the 11 km trail leading to the plot. Classic herbarium techniques and field observations were used for the morphological identification and description of specimens at MO and YA and from our personal collections. Cola species richness and abundance was estimated from the plot data and compared to other African forest sites for which comparable data are available. The evaluation of the conservation status of the two new species described in this paper followed the IUCN Red List Categories and Criteria. Key results – Twenty-five species of Cola were identified in the southern part of the KNP, including four undescribed species, raising the total number of Cola species in Cameroon to 46. The abundance of the genus in KNP was three orders of magnitude higher than in the Rabi forest in southwestern Gabon or in the Ituri forest in eastern D.R. Congo. This high species richness and abundance suggests that KNP is part of the center of diversity of the genus. Two new species, Cola zemagoana Kenfack & D.W.Thomas and C. mamboana Kenfack & Sainge are described and illustrated. Both species are only known from the lowland rainforest of southwestern Cameroon. Cola zemagoana is narrow endemic of southern KNP and its conservation status is assessed as Endangered. Cola mamboana is confined to the lowland forests of southwestern Cameroon, is locally very abundant in protected areas and is also assigned the conservation status Endangered.

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Rubus fraxinifolius, a group of wild raspberry, was improved as a fresh fruit in Indonesia. The purpose of this study was to develop a protocol for micropropagation of R. fraxinifolius. Cultures were subcultured from hypocotyls (1 cm) which is initiated from seeds. The experiments were focused on the effect of plant growth regulators concentrations and combinations. The highest germination by in vitro was obtained using MS medium supplemented with 10 mg/L of GA 3. Furthermore, based on five parameters, i.e. callus height, callus diameter, number of leaves, plantlet height and number of roots, medium 3 (0.5 mg/L GA 3 , 2.5 mg/L 2-iP and 0.1 mg/L NAA) shown the best results during the development explants of R. fraxinifolius. Effectivity of R. fraxinifolius regeneration through in vitro was affected by 2-iP and NAA concentration. If both of plant growth regulators were high (medium 8) or low (medium 1), it made less growth.

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Mengingat begitu pentingnya hutan bagi kehidupan manusia, baik dalam lingkup lokal, nasional maupun konteks global (perubahan iklim) Indonesia berupaya menemukan cara bagaimana menjadikan hutan itu tetap berperan sebagai sumber perekonomian, menyumbang pada perbaikan hidup masyarakat sekitar hutan, terjaga kelestariannya dan berkontribusi pada penurunan emisi gas rumah kaca. Dan alternatifnya adalah dengan menjaga serta memanfaatkan kemampuan hutan dalam menyerap dan menyimpan karbon termasukHutan Rawa, Hutan Rawa adalah hutan yang tumbuh dan berkembang pada kawasan atau wilayah yang selalu tergenang air tawar dan Stok karbon adalah cadangan karbon yang terdapat di alam.  Tujuan dilakukannya  penelitian ini adalah untuk Menghitung luasan Hutan Rawa di Provinsi Papua Barat, Menghitung jumlah stok karbon Hutan Rawa di Provinsi Papua Barat, Menganalisa berapa potensi emisi yang diakibatkan jika terjadi eksploitasi pada Hutan Rawa, Menghitung berapa nilai ekonomi serapan CO2 pada Hutan Rawa.Considering the importance of forests for human life, both in the local, national and global context (climate change), Indonesia seeks to find ways to make forests continue to play a role as economic resources, contribute to improving the lives of surrounding communities, maintain sustainability and contribute to reducing emissions greenhouse gas. And the alternative is to maintain and utilize the ability of forests to absorb and store carbon, including Swamp Forests, Swamp Forests are forests that grow and develop in areas or areas that are always flooded with fresh water and carbon stocks are carbon stocks found in nature. The purpose of this study was to calculate the swamp forest area in West Papua Province, calculate the amount of carbon stock in swamp forests in West Papua Province, analyze the potential emissions caused by exploitation of swamp forests, calculate the economic value of CO2 uptake in swamp forests.