Ervianti D, Widjaja EA, Sedayu A. 2019. Bamboo diversity of Sulawesi, Indonesia. Biodiversitas 20: 91-109. Bamboo is one of the important plants in the world. Beside their economic important, bamboo also plays an important role in the environment for climate change. The purpose of this study was to inventory the bamboo diversity in Sulawesi. The methodology used in this study is by observing herbarium specimens kept in the Herbarium Bogoriense (BO) and field experience by the second author (EAW). The result showed that there are 39 species of 12 genera in Sulawesi, i.e. Bambusa blumeana, B. glaucophylla, B. maculata, B. multiplex, B. tuldoides, B. vulgaris, Chloothamnus sp., Dendrocalamus asper, Dinochloa albociliata, D. aopaensis, D. barbata D. cordata, D. erecta, D. hirsuta, D. morowaliensis, D. petasiensis, D. pubiramea , D. truncata, Dinochloa sp.1, Dinochloa sp.2, Dinochloa sp.3, Dinochloa sp.4, Dinochloa sp.5, Dinochloa sp.6, Dinochloa sp.7, Dinochloa sp.8, Dinochloa sp.9, Fimbribambusa sp., Gigantochloa apus, G. atroviolacea, G. atter, Neololeba atra, Phyllostachys aurea, Racemobambos celebica, Schizostachyum brachycladum, S. latifolium, S. lima, Sphaerobambos subtilis, and Thyrsostachys siamensis. Identification keys and descriptions are presented. This data reported will be used as basic information for bamboo conservation and bamboo industry.

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This research focused on the amount of abundance of microplastics in the sea hare Dolabella auricularia as well as the seagrass fields along the southern coast of Pramuka Island. Sampling of 8 individuals of Dolabella auricularia along with seagrass Cymodocea rotundata leafblades was done at the southern coast of Pramuka Island, after which the samples were preserved and brought to a laboratorium in Depok for microplastic analysis. The sea hares’ digestive tracts were extracted and dissolved in strong nitric acid. A 1 cm2 portion of a seagrass leaf blade was cut for observation. Prepared samples were observed under a monocular microscope and further analysis was done. Microplastic fibers and film particles were found in highest abundance within the digestive tracts of each sample of Dolabella auricularia as well as on the seagrass surface where the sea hare obtains its algae from, with fragment particles found in much lower amounts. Overall, number of microplastics was found between 40.1 to 73.7 particles/g weight of sea hare digestive tract and the estimated amount of microplastic found at seagrass leafblade was 185 particles/cm2. Results provide evidence that microplastics in the ocean brought by water currents could adsorb on to algae through which it enters the food chain as it is consumed by marine biota.

ERVIANTI, D., WIDJAJA, E. A. & SEDAYU, A. 2019. New species of climbing and scrambling bamboo from Sulawesi, Indonesia. Reinwardtia 18(2): 115−132 — Ten new species of Sulawesi bamboos are discovered, belonging to the climbing genus Dinochloa Büse and the scrambling Fimbribambusa Widjaja. These are Dinochloa bungintimbensis Widjaja & Ervianti, D. glabra Widjaja & Ervianti, D. karaboensis Widjaja & Ervianti, D. khoonmengii Widjaja & Ervianti, D. kolakaensis Widjaja & Ervianti, D. mekonggensis Widjaja & Ervianti, D. multibrachiata Widjaja & Ervianti, D. sessilifolia Widjaja & Ervianti, D. wartabonei Widjaja & Ervianti, and Fimbribambusa soejatmiae Widjaja & Ervianti. Identification keys, descriptions and illustrations of these species are presented.