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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology REINWARDTIA JURNAL BIOLOGI INDONESIA ZOO INDONESIA Jurnal Entomologi Indonesia Reinwardtia
ALEX SUMADIJAYA
Bidang Botani, Puslit Biologi-LIPI Jalan Raya Cibinong Km 46, Cibinong 16911, Jawa Barat
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Veterinary Other

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Journal : REINWARDTIA

 1 
FLORISTIC COMPOSITION AND STRUCTURE OF SUBALPINE SUMMIT HABITATS ON MT. GEDE-PANGRANGO COMPLEX, CIBODAS BIOSPHERE RESERVE, WEST JAVA, INDONESIA Sadili, Asep; Kartawinata, Kuswata; Kartonegoro, Abdulrokhman; Soedjito, Herwarsono; Sumadijaya, Alex
REINWARDTIA Vol 12, No 5 (2009): Vol. 12, No. 5
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.024 KB) | DOI: 10.14203/reinwardtia.v12i5.88

Abstract

SADILI, A., KARTAWINATA, K., KARTONEGORO, A., SOEDJITO, H. & SUMADIJAYA, A. 2009. Structure and composition of subalpine summit habitats on Mt. Gede-Pangrango complex, Cibodas Biosphere Reserve, West Java, Indonesia. Reinwardtia  12 (5): 391–404.  We undertook a phytosociological analysis of the subalpine herbaceous and shrubby vegetation at the Mandalawangi and Suryakencana meadows and the scrub at the Crater Side at the tops of Mt. Gede and Mt. Pangrango in the Cibodas Biosphere Reserve. We recorded 30 species of 18 families of saplings, shrubs, seedlings and herbs in 78 quadrats with a total area of 7,800 m2. Anaphalis javanica, a woody tall herb and long-lived pioneer was the dominant species in the sapling and shrub stratum, while Isachne pangerangensis, Tripogon exiguus and Carex verticillata were prevalent in the seedling and herb stratum at Mandalawangi and Suryakencana. Stunted shrub is Vaccinium varingaeifolium, dominant in the Crater Side scrub. Based on the importance values, the Mandalawangi meadow may be designated as the Anaphalis javanica-Isachne pangerangensis community type, the Suryakencana meadow as Anaphalis javanica-Tripogon exiguus community type and the Crater Side scrub as Vaccinium varingiaefolium-Seliguea feei community type. The similarity indices between Mandalawangi and Suryakencana community types were very high (>75 %) while those between the Crater Side and Mandalawangi and the Crater Side and Suryakencana were very low (<10 %). Poor soil conditions and fire seem responsible for the perpetual existence of A. javanica.
NOTES ON BOTHRIOCHLOA KUNTZE (GRAMINEAE: ANDROPOGONEAE) IN MALESIA Sumadijaya, Alex; Veldkamp, Jan Frits
REINWARDTIA Vol 12, No 5 (2009): Vol. 12, No. 5
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.053 KB) | DOI: 10.14203/reinwardtia.v12i5.78

Abstract

SUMADIJAYA, A. & VELDKAMP, J.F. 2009. Notes on Bothriochloa Kuntze (Gramineae: Andropogoneae) in Malesia. Reinwardtia 12(5): 415 – 417. — The note is preliminary part for studies of Bothriochloa Kuntze in Malesia. Special caution should be given to Bothriochloa intermedia (R. Br.) A. Camus, now B. bladhii (Retz.) S.T. Blake, because of the variation, synonyms, and natural hybridization to generic level.
Non Bambusoid grasses (Gramineae) from Raja Ampat Archipelago, Papua Barat Province, Indonesia Sumadijaya, Alex; Veldkamp, Jan Frits
REINWARDTIA Vol 13, No 3 (2012): Vol. 13 No. 3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v13i3.445

Abstract

Thirty two species of non-bambusoid grasses from 28 genera were recorded for the Raja Ampat Archipelago, Papua Barat Province, Indonesia, mostly from secondary forest. The result was compiled from Widya Nusantara Expedition (EWIN), Takeuchi (2003), and Van Royen (1960). This is a first attempt to record non-bambusoid grasses for a remote archipelago in Indonesia.
A. Six years experience on plant identification services: a case study in Herbarium Bogoriense Sumadijaya, Alex
REINWARDTIA Vol 13, No 4 (2012): Vol. 13 no. 4
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.401 KB) | DOI: 10.14203/reinwardtia.v13i4.438

Abstract

The Herbarium Bogoriense (BO), an integrated part of the Botanical Division, Research Center for Biology, Indonesian Institute of Sciences, receives plant specimens to be identified on a daily basis.  In a six year period from 2005 to 2010, data were extracted from thousand of identification requests by hundreds of clients. Patterns were observed based on variables such as time, plant groups, client expertises, and taxonomic level.  Outputs from these analysis are being expected to become one of the pillar to build a unifying scheme for botanical research at the Herbarium Bogoriense by focusing on human resources development to deal with biodiversity issues about frequently encountered taxa.
Reinwardtia, 75 years of endeavour investigating Indonesia’s botany and beyond Sumadijaya, Alex; Agustiani, Esthi; Senjaya, Seni; Wulansari, Tri
Reinwardtia Vol. 24 No. 1 (2025): Reinwardtia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.2025.591

Abstract

SUMADIJAYA, A., AGUSTIANI, E. L., SENJAYA, S. K. & WULANSARI, T. Y. I. 2025. Reinwardtia, 75 years ofendeavour investigating Indonesia’s botany and beyond. Reinwardtia 24(1): 137‒144. — Decades of publications in Reinwardtia reveal the dynamics and transition of botanical research in Indonesia. This synthesis delivers snapshots across third-quarter-century accumulation of plant and fungi knowledge, mostly in taxonomy, with a glimpse into ecology, ethnobotany, and others. Disparity of studies is prevalent for Angiosperms and taxa in Indonesia, particularly Java, Sumatra, and Sulawesi. Across decades, the transition of editors and authors delivers strong evidence of a scientific void and prolonged time to recover the vacuum. It also provides a sweet spot between decolonization while maintaining global participation.
Co-Authors Abdulrokhman Kartonegoro, Abdulrokhman Agus Ruswandi Agustiani, Esthi Aji Winara Asep Sadili, Asep Asfiya, Wara Budiasih, Yulie Darmawan Encilia Hadi Dahrudin, Hadi Hapsari, Laras Ay Hellen Kurniati, Hellen Herwarsono Soedjito, Herwarsono Jan Frits Veldkamp, Jan Frits Kuswata Kartawinata Mahensa Billqys Nurhayati Prativi, Mahensa Billqys Nurhayati Narakusumo, Raden Pramesa Sarino Senjaya, Seni Sih Kahono Wirdateti Wirdateti, Wirdateti Wulansari, Tri