Sunday, December 21, 2008

Rafflesia lima-lidah, a new species?

In the latest Malaysian Naturalist Vol. 62(2) : 40-42, Mathew Wong and Forest Gan reported what they thought a potentially new species of Rafflesia. The specimen was photographed in a remote part of Kelantan on 17th August 2008 at an altitude of 1,078 m above sea level. Judging from the altitude, the locality should be either on the Kelantan-Perak or Kelantan-Pahang border, for only there the hills are abpve 1,000 m a.s.l. And judging from the previous activities of the two gentlemen, it is most likely on the Kelantan-Perak border. The locality is always kept secret for fear of unauthorised collection for non-scientific purposes.
It was dubbed "lima lidah" because the rim of the diaphragm has five tongue-shaped appendages protruding inwards. Accordingly, the R. lima-lidah resembles R. kerri in general appearance, size as well as colour, only differs from it in the character of five tongues (see page 42). I sms-ed Prof Kamarydin Mat salleh about it and his immediately response was the possibility of abberation of R. kerri. However, he insisted on observing more samples to verify its true identity. Talking about abberation, the six-perigones of R. keithii in Sabah has been reported.
Earlier, I postulated on the occurrence of another species lurking in Kelantan-Perak border that resembles R. kerri. It was based on the assumption that R. kerri in Thailand parasitises the stems of Tetrastigma quadrangulum but there is no such host species in Kelantan-Perak border. Therefore, the R. kerri in Kelantan-Perak border must be another species for Rafflesia in Peninsular Malaysia is host-specific. Several months ago Prof. Kamaruddin did mention to me the possibility of a new species to be described from the area, which he cynically wanted to name after a royalty!
Coming back to R. lima-lidah, I am so curious about the so-called five tongues appendages on the rim of the flower, if it was an aberrant R. kerri, why would there be five tongues, corresponding to and opposite the five perigones, not one or two tongues, as signs of genetic monstrosity.

1 comment:

goooooood girl said...
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