A new species of Begonia (Begoniaceae) from Sagea Lagoon, Weda Bay, Halmahera Island, North Moluccas, Indonesia

A new species of Begonia sageaensis Wiriadinata (Begoniaceae) from south of Mt. Sohra Ecoregion, Sagea Lagoon, Weda Bay, Halmahera, North Moluccas, Indonesia is described and illustrated. This species close to B. holosericea Teijsm. & Binn. in small herb habit but it differ in red hirsute hairs on both leaf surface and on its petiole, persistence equitant bracts, longer pedicels of male flowers and  fruit has three equal wings with both flat ends

A NEW SPECIES OF PANDANUS (PANDANACEAE) FROM BINTUNI BAY, WEST PAPUA

WIRIADINATA, H. 2009. A new species of Pandanus (Pandanaceae) from Bintuni Bay, West Papua. Reinwardtia 12(5): 443–446. — Pandanus bintuniensis Wiriadinata collected from Bintuni Bay, West Papua is described. It is very close to P. permicron Kanehira, but differs in wider leaf and brownish green coloured young leaf

A new species of Begonia (Begoniaceae) from South Sulawesi, Indonesia.

A new species, Begonia hooveriana Wiriad., is described from Tanah Toraja in South Sulawesi. It belongs to Begonia section Petermannia and brings the total number of Begonia species native to Sulawesi to 43 species

Kekayaan Jenis Tumbuhan Taman Nasional Gunung Halimun*[plant Biodiversity Richness of Gunung Halimun National Park]

Mounts Halimun National Park in West l Java has a very high plant diversity. The plant diversity composes of flowering plants.ferns, mosses and fungi. They are very important in biodiversity as their functions to keep good environments and protect the living endangered creatures such as Javanese eagle, panther, hornbill and gibbon. Data on the plant diversity is important for the park management, education ami ecouirism. Invcntarisation ofplants from many areas within the park will be presented

KEKAYAAN JENIS TUMBUHAN TAMAN NASIONAL GUNUNG HALIMUN*[Plant Biodiversity Richness of Gunung Halimun National Park]

Mounts Halimun National Park in West l Java has a very high plant diversity. The plant diversity composes of flowering plants.ferns, mosses and fungi. They are very important in biodiversity as their functions to keep good environments and protect the living endangered creatures such as Javanese eagle, panther, hornbill and gibbon. Data on the plant diversity is important for the park management, education ami ecouirism. Invcntarisation ofplants from many areas within the park will be presented

A NEW SPECIES OF RAFFLESIA (RAFFLESIACEAE) FROM NORTH SUMATRA

WIRIADINATA, H. & SARI, R. 2010. A new species of Rafflesia (Rafflesiaceae) from North Sumatra. Reinwardtia  13(2): 95-100. - Rafflesia meijeri Wiriadinata & Sari spec. nov. from North Sumatra is described. It appears closely related to R. rochussenii Teijsm. & Binn. from West Java which has no processes on the disk, smaller flower, the lobes with a different wart pattern, a wider groove with thin lamellae on the central column, ramenta filiform without swollen apex

IMPATIENS MAMASENSIS (BALSAMINACEAE), A NEW SPECIES FROM WEST CELEBES, INDONESIA

UTAMI, N & WIRIADINATA H, 2010. Impatiens mamasensis (Balsaminaceae), a new species from West Celebes, Indonesia. Reinwardtia 13(2): 211-212. - Impatiens mamasensis Utami & Wiriad. (Balsaminaceae) is described as a new species

KEANEKARAGAMAN TUMBUHAN HUTAN "GUNUNG LUMUT" KABUPATEN PASIR, KALIMANTAN TIMUR

The diversity of forest plants found in three locations in Gunung Lumut Protected Forest, East Kalimantan had been studied in November 2005 in which 252 number of herbarium specimen have been collected, encompassing 194 of herbs and shrubs,33 of trees, 21 numbers of climbers and 4 numbers of orchids.Among the collections like some members of Begoniaceae are interesting for their limited distribution and endemicity