Species named after Dr. Joseph Arnold, a physician who explored Sumatra with Sir Stamford Raffles in the early 1800s.
Synonyms: R. titan Jack
The following photos were taken by Mr. Davis who formerly maintained a web site called SumatraFlora - On-Line Nursery. This site is no longer available, but at the time he provided a number of photographs of interesting plants from Sumatra, including Rafflesia arnoldii. The nine photos below were taken in the Palupu Reserve near Bukittinggi, Indonesia.
• Fully open flower of Rafflesia arnoldii.
| • Flower bud, in a later stage of opening.
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• Flower bud, with scales still unexpanded.
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| • Fully open flower with Troy Davis included for scale! |
• Closer view of the flower showing the diaphragm surrounding the floral opening.
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| • Close-up of the perigone lobe showing the pattern.
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• Top view of the disk showing the processes.
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| • Side view of the disk from a dissected flower.
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• View from inside a Rafflesia flower. |
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Professor Trond Schumacher (University of Oslo) and R. arnoldii.
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Photograph by Harry Wiriadinata (email: herbogor@indo.net.id) and Suwito Alam from article in "Voice of Nature" (ISSN No 0216-4177), Vol.84, Aug. 1990, page14.
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The photo below was taken by Alwin Gentry ca. 1956 on Mt. Sago at the L Hulaban Tea Estate, Sumatra. It is also archived on TROPICOS image libary at MO here.
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Close-up view of two Rafflesia anthers dehiscing the pollen in a sticky
fluid. Mt. Sago, Sumatra. Photo by E. S. Ross July 23, 1983.
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