Rafflesia
From Free net encyclopedia
{{Taxobox | color = lightgreen | image = Rafflesia flower.jpg | image_caption = R. arnoldii flower | name = Rafflesia | regnum = Plantae | divisio = Magnoliophyta | classis = Magnoliopsida | ordo = Malpighiales | familia = Rafflesiaceae | genus = Rafflesia | genus_authority = R.Br. | subdivision_ranks = Species | subdivision = See text. }}
Rafflesia is a genus of parasitic flowering plants. It contains 15-19 species (including four incompletely known species as recognized by Meijer 1997), all found in southeastern Asia, on the Malay Peninsula, Borneo, Sumatra and Kalimantan, and the Philippines. The flowers have no leaves and hardly any stem, just a huge speckled five-petaled flower with a diameter up to 106 cm, and weighing up to 10 kg. Even the smallest species, R. manillana, has 20 cm diameter flowers. The flowers smell like rotting meat, hence its local names which translate to "corpse flower" or "meat flower". It is parasitic on vines in the genus Tetrastigma (Vitaceae), spreading its roots inside the vine. The fruit is eaten by tree shrews and other forest mammals. Rafflesia is an official state flower of Sabah in Malaysia, as well as for the Surat Thani Province, Thailand.
- Species
- Rafflesia arnoldii
- Rafflesia cantleyi
- Rafflesia gadutensis
- Rafflesia hasseltii
- Rafflesia keithii
- Rafflesia kerrii
- Rafflesia manillana
- Rafflesia micropylora
- Rafflesia patma
- Rafflesia pricei
- Rafflesia rochussenii
- Rafflesia schadenbergiana
- Rafflesia speciosa
- Rafflesia tengku-adlinii
- Rafflesia tuan-mudae
- Unverified species
- Rafflesia borneensis
- Rafflesia ciliata
- Rafflesia titan
- Rafflesia witkampii
The species Rafflesia arnoldii has the world's largest single flower. It was discovered in the Indonesian rain forest by an Indonesian guide working for Dr. Joseph Arnold in 1818, and named after Sir Thomas Stamford Raffles.
For comparisons, the world's largest inflorescence is borne by the Talipot palm (Corypha umbraculifera). The largest unbranched inflorescence is the Titan Arum (Amorphophallus titanum) from the family Araceae.