Rafflesia arnoldii which then pollinate the rare plant. It is not to be confused with the titan arum, "Amorphophallus titanum", which is also commonly referred to as the "corpse flower" because of its repulsive odor. "Rafflesia arnoldii" is rare and fairly hard to locate. It is especially difficult to locate the flower in forests, as the buds take many months to develop and the flower lasts for just a few days. The flowers are unisexual and thus proximity of male and female flowers is vital for successful pollination. These factors make successful pollination a rare event. When "Rafflesia" is ready to reproduce,
Joseph Arnold in Batavia. In 1818, he worked with Sir Stamford Raffles in Sumatra, where he died. The largest flowering plant, "Rafflesia arnoldii", was discovered by an Indonesian guide working for him and later named in Arnold's honour. Joseph Arnold Joseph Arnold (28 December 1782 – 26 July 1818 in Padang, Sumatra, Netherlands East Indies) was a naval surgeon and naturalist. His specimen collection is in the museum of the Linnean Society. Born in Beccles, Suffolk, Arnold learned surgery in Edinburgh and received a diploma in 1807. From 1808 to 1815, he worked as a naval surgeon for the Royal Navy, including