Open Access Open Access  Restricted Access Subscription or Fee Access


Rafflesia kemumu (Rafflesiaceae), a new species from Northern Bengkulu, Sumatra, Indonesia



Rafflesia kemumu is a new species described from Northern Bengkulu in Sumatra, Indonesia. The species resembles R. gadutensis in size of the open flower, but differs from it with regard to the color and wart ornamentation on the upper surface of the perigone lobes, color and presence/absence of warts on the upper surface of the diaphragm, blots pattern on the two concentric rings of windows near the diaphragm opening, types and distribution of ramenta, number and shapes of processes, and number of anthers. The new species has orange to dark orange perigone lobes with warts of two sizes, in which smaller warts are often merged, and surround larger ones, and 23 slender, conical processes with rounded apex, arranged in two concentric rings (15 and 7 processes each) and a single process in the center of the disc. Rafflesia kemumu has no warts at its upper surface of diaphragm, simple and compound toadstool ramenta on its upper perigone tube and the lower part of the lower surface of its diaphragm and broccoli-like ramenta distributed from the base to the upper part of the perigone tube.


Bengkulu, processes, Rafflesia, ramenta, Sumatra, Eudicots

Full Text:



Akhriadi, P., Kiswanto, H.A., Taufiq, A., Alfajri, D. & Kardiman, R. (2010) Assessment of conservation status of Rafflesia in West Sumatra. Indonesia. (2010) Final report to Rufford Small Grant (for Nature Conservation). Rafflesia Monitoring Team (RMT) Padang, Padang.

Barcelona J.F., Cajano, M.O. & Hadsall, A.S. (2006) Rafflesia baletei, another new Rafflesia (Rafflesiaceae) from the Phillipines. Kew Bulletin 61: 231–237.

Barcelona, J.F., Pelser, P.B., Cabutaje, E.M. & Bartolome, N.A. (2008) Another new species of Rafflesia (Rafflesiaceae) from Luzon, Philippines: R. leonardi. Blumea 53: 223–228.

Barcelona, J.F., Pelser, P.B., Balete, R.S. & Co, L.L. (2009) Taxonomy, ecology, and conservation status of Phillippine Rafflesia (Rafflesiaceae). Blumea 54: 77–93.

Blume, C.L. (1825) Etwas uber die Rhizantheae, eine neue pflanzenfamilie und die gattung Rafflesia ins besondere. In: Flora 8 Jahrg. Bd. II. 609 pp.

Brown, R. (1821) An account of a new genus of plants named Rafflesia. Transactions of Linnean Society of London 13: 201–234.

Fernando, E.S. & Ong, P.S. (2005) The genus of Rafflesia R. Br. (Rafflesiaceae) in the Phillipines. Asia Life Science 14: 263–270.

Galindon, J.M.M., Ong, P.S. & Fernando, E.S. (2016) Rafflesia consueloae (Rafflesiaceae), the smallest among giants; a new species fom Luzon Island, Philippines. PhytoKeys 61: 37–46.

http://doi 10.3897/phytokeys.61.7295.

Hidayati, S.N. & Walck, J.L. (2017) A review of the biology of Rafflesia: What do we know and what’s next? Buletin Kebun Raya 19: 67–78.

Hieronymus, G. (1885) Uber eine neue von Dr. A. Schadenberg und O. Koch auf Sud-Mindanao entdeckte Art de Gottung Rafflesia. Gartenflora 34: 3–7.

Latiff, A. & Wong, M. (2004) A new species of Rafflesia from Peninsular Malaysia. Folia Malaysiana 4: 135–146.

Mahyuni, R., Kusuma, Y.W.C., Wihermanto & Veldkamp, J.F. (2015) Notes on Rafflesia (Rafflesiaceae) in Sumatra with a new record Rafflesia gadutensis Meijer. Reinwadtia 14: 317–322.

Mat-Salleh, K., Mahyuni, R., Susatya, A. & Veldkamp, J.F. (2010) Rafflesia lawangensis (Rafflesiaceae), a new species from Bukit Lawang, Gunung Leuser National Park, North Sumatra, Indonesia. Reinwardtia 13: 159–165.

Meijer, W. (1984) New species of Rafflesia (Rafflesiaceae). Blumea 30: 209–215.

Meijer, W. (1997) Rafflesiaceae. Flora Malesiana, Series I 13: 1–42.

Nais, J. (2001) Rafflesia of the world. Sabah Park in association with Natural History Publications (Borneo), Kota Kinabalu.

Sofiyanti, N., Mat-Salleh, K., Purwanto, D. & Syahputra, E. (2007) The note on morphology of Rafflesia hasseltii Suringar from Bukit Tiga Puluh National Park. Biodiversitas 9: 257–261.

Sofiyanti, N., Mat-Salleh, K., Mahmud, K., Mazlan, N.Z., Hasein, M.R.A. & Burslem, F.R.P. (2016) Rafflesia parvimaculata (Rafflesiaceae), a new species of Rafflesia from Peninsular Malaysia. Phytotaxa 253: 207–213.

Solms-Laubah, H.G. Z. (1910) Uber eine neue species der gattung Rafflesia. Annales du Jardin Botanique de Buitenzorg, Suppl. 3 (1):1–7.

Suringar, F.W.R. (1879) Rafflesia hasseltii. Acta Societatis Rigial Scientiarum Nederlandicae 1879: 1–3.

Susatya, A. (2007) Taxonomy and ecology of Rafflesia in Bengkulu, Indonesia. Ph.D dissertation, Faculty of Science and Technology, Universiti Kebangsaan, Malaysia. Bangi, Malaysia.

Susatya, A. (2011) Rafflesia pesona bunga terbesar di dunia. Direktorat Kawasan Konservasi dan Bina Hutan Lindung, Ministry of Forestry, Jakarta, Indonesia.

Susatya, A., Wahyudi, A. & Mat-Salleh, K. (2005) Rafflesia bengkuluensis (Rafflesiaceae), a new species from South Sumatra. Indonesia. Folia Malaysiana 6: 139–152.

Susatya, A., Hidayati, S.N, Mat-Salleh, K. & Mahyuni, R. (2017) Ramenta morphology and its variations in Rafflesia (Rafflesiacae). Flora 230: 34–46.

Teijsmann, J.E. & Binnendijk, S. (1850) Over eene nieuwe sort van Rafflesia (R. rochussenii). Natuurk Tijdschriff voor Nederlandsch Indie Jahrg, pp. 425–430.

Wiriadinata, H. & Sari, R. (2010) A new species of Rafflesia (Rafflesiaceae) from North Sumatra. Reinwardtia 13: 95–100.

Zuhud, E.A.M., Hikmat, A. & Jamil, A. (1998) Rafflesia Indonesia. Keanekaragaman Ekologi dan Pelestariannya. Yayasan Pembina Suaka Alam dan Suaka Margasatwa Indonesia (The Indonesian Wildlife Fund) dan Laboratorium Konservasi Tumbuhan Institut Pertanian Bogor, Bogor.


  • There are currently no refbacks.

ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand