Exploration and Inventory of Araceae Genera in Silui Mountain and Uluisimbone Forest, Kolaka Regency, South-East Sulawesi

The island of Sulawesi has been highlighted as a globally important conservation area, across a range of evaluation criteria. Collection rates on the Sulawesi island are the lowest among in Indonesia area. Taxonomic study also has been limited, with most experts reporting large numbers of undescribed species. The research of Araceae diversity in Sulawesi is subject which in general has not been studied critically. The main purpose of this research is concerned to inventory the diversity of Araceae genera. The exploration was conducted in each location used exploring method. The Araceae genera in Silui mountain and Uluisimbone forest consist of 30 numbers, 24 species and 14 genera, including into 3 sub families (Aroideae, Monsteroideae and Photoideae). Mostly Araceae were found at humid location, the river flows. Schismatoglottis calyptrata Zoll.&Mor. and Aglaonema simplex Bl. are dominant species for terrestrial Araceae, where as Scindapsus spp. and Pothoidium spp. are dominant species for climbing Araceae

COMPARATIVE LEAVES ANATOMY OF PANDANUS, FREYCINETIA AND SARARANGA (PANDANACEAE) AND THEIR DIAGNOSTIC VALUE

Study in leaves anatomy of twenty nine samples of the species classified under Pandanus, Freycinetia and Sararanga of Pandanaceae had been undertaken to unravel generic relationship among of these taxa with a view to provide a set of diagnostic characters for taxonomic identification. The fourth genus of Pandanaceae, Benstonea is not included in this analysis since there are no representative samples. Four anatomical diagnostic characters had been identified at the generic level such as present and absent of papillae, stomatal arrangement types, present and absent of bundle sheath extension and hypodermal thickness and its shape. Pandanus has papillae, amphistomatous stomata, bundle sheath extension present and hypodermis thin and rectangular; Freycinetia lacked of papillae, stomata hypostomatous or amphistomatous, bundle sheath  extension absent and hypodermis thick and hexagonal or rounded; meanwhile Sararanga has no papillae, stomata        amphistomatous, bundle sheath extension absent and hypodermis thin and flatten. An identification key to those genera based on anatomical diagnostic characters is provided. </p

COMPARATIVE LEAVES ANATOMY OF PANDANUS, FREYCINETIA AND SARARANGA (PANDANACEAE) AND THEIR DIAGNOSTIC VALUE

Study in leaves anatomy of twenty nine samples of the species classified under Pandanus, Freycinetia and Sararanga of Pandanaceae had been undertaken to unravel generic relationship among of these taxa with a view to provide a set of diagnostic characters for taxonomic identification. The fourth genus of Pandanaceae, Benstonea is not included in this analysis since there are no representative samples. Four anatomical diagnostic characters had been identified at the generic level such as present and absent of papillae, stomatal arrangement types, present and absent of bundle sheath extension and hypodermal thickness and its shape. Pandanus has papillae, amphistomatous stomata, bundle sheath extension present and hypodermis thin and rectangular; Freycinetia lacked of papillae, stomata hypostomatous or amphistomatous, bundle sheath extension absent and hypodermis thick and hexagonal or rounded; meanwhile Sararanga has no papillae, stomata amphistomatous, bundle sheath extension absent and hypodermis thin and flatten. An identification key to those genera based on anatomical diagnostic characters is provided