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Rafflesia
Rafflesia
Click to enlarge:

© 2002 (Photograph by B. C. Tan)
The only part of a Rafflesia to appear above ground is the huge flower. |
Consider yourself lucky
indeed if you have seen the giant flowers of Rafflesia. This strange plant lives as a parasite on the roots of vines related to the common grape. It produces neither leaves nor stems, only roots that penetrate and spread within the host plant. Rarely and unpredictably, the cabbage-like brown bud of Rafflesia emerge above ground, and slowly opens to a
flower like no other. One species on the Indonesian island of Sumatra (Rafflesia
arnoldii) produces the flower on record, reaching up to a meter in diameter.Rafflesia
can also claim the title of the stinkiest flower in the world: As with the elephant-foot yam, the overpowering
odor emitted by an opened flower can be mistaken for the smell of rotting
meat. Rafflesia's brownish-purple flower is unappealing to most insects,
but carrion flies attracted by the odor and color of these flowers and pollinate
them. It will come as no surprise to learn that in the Malay language the
plant is called bunga-bangkay"the corpse flower."
This striking genus of strange parasites
was named in honor of Sir Stamford Raffles, founder of Singapore. There
are at least a dozen species in Southeast Asia, two of them unique to the
Philippines. One is a small-flowered species, Rafflesia manillana, now
listed as highly endangered. The other, large-flowered species, Rafflesia
schadenbergiana, may be extinct. R. manillana has been seen in
recent years on Mount Isarog, but R. schadenbergiana has not been seen since the first specimen was collected in 1882 on Mount Apo in southern Mindanao. Numerous attempts to find the species, most recently our own in 1994, have been unsuccessful. Deforestation by logging and agricultural clearing on the lower foothills of Mount Apo has apparently caused the extinction. |

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