Stenochlaena riauensis, a new fern species from Riau, Indonesia is described and illustrated. This species can be distinguished from its most closely related species S. palustris by the position of fertile and sterile pinnae. In the new species, both fertile and sterile pinnae are located on the same frond, the lower part of lamina consisted of sterile pinnae that gradually narrower towards apex forming linear fertile pinnae.Bangladesh J. Plant Taxon. 22(2): 137-141, 2015 (December)

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Bengkalis Island is one of the islands in Riau Province which produced most rambai (Baccaurea motleyana Müll.Arg.) in the province where the plant has been used as fruit and medicinal plants. None of research has been conducted on the diversity of rambai from Bengkalis Island. The purpose of this study was to identify the diversity of B. motleyana in Bengkalis Island based on morphological characters. Exploration method was used in two sub-districts namely Bantan and Bengkalis. Observation included 37 morphological characters of 50 individuals. Data were analyzed using NTSYSpc2.02 and Minitab 16. The result showed that the generated dendrogram was divided into two main groups, with coefficient similarity values ??ranged from 41–78%. Pearson correlation analysis found that 16 characters had high correlation value. This study provided important information on diagnostic morphological characters and taxonomic groupings of B. motleyana which would be useful as a basis for further research and development.

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Indra Rijaya & Fitmawati. 2019. Jenis-jenis Bambu (Bambusoideae) di Pulau Bengkalis, Provinsi Riau, Indonesia. Floribunda 6(2): 41–52. —  Pulau Bengkalis merupakan salah satu pulau di sisi timur Sumatra yang didominasi lahan gambut dengan tumbuhan bambu yang dipercaya memiliki peran ekologis, hidrologis dan ekonomis. Informasi mengenai jenis-jenis bambu yang ada di Pulau Bengkalis sangatlah sedikit. Tujuan penelitian ini adalah untuk melakukan inventarisasi dan identifikasi jenis-jenis bambu berdasarkan karakter morfologi. Metode penelitian yang digunakan adalah metode survey eksploratif. Berdasarkan penelitian ini diperoleh empat marga asli bambu yakni Bambusa, Dendrocalamus, Gigantochloa, Schizostacyum dan satu marga introduksi (Thyrsostachys) Sembilan jenis yaitu (B. glaucophylla, B. heterostachya, B. multiplex, B. vulgaris, D. asper, G. hasskarliana, S. brachycladum, S. latifolium dan T. siamensis, dan satu varietas yaitu B. vulgaris var. striata dikemukakan.