Re: Eau de Nepenthes for Men

From: SCHLAUER@chemie.uni-wuerzburg.de
Date: Fri Feb 20 1998 - 14:36:06 PST

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Date:          Fri, 20 Feb 1998 14:36:06 
From: SCHLAUER@chemie.uni-wuerzburg.de
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg675$foo@default>
Subject:       Re: Eau de Nepenthes for Men

> I'm really wondering what kind of pollinators do they attract with such a...
> 'perfume'...

Kato, M.
Floral biology of _Nepenthes gracilis_ (Nepenthaceae) in Sumatra
Am. J. Bot. 80 (8):924-927 (1993)
Abstract:
_Nepenthes gracilis_, a dioecious carnivorous plant, has
inconspicuous flowers lacking petals. Nectaries distributed on
the upper surface of four sepals secrete dilute nectar (3%-12%
sugar concentration) at night, but the nectar immediately
disappears during the day by evaporation in the sunny environment
of Sumatra. Male flowers have a higher nectar production rate but
lower sugar concentration of nectar than female flowers. Flowers
of both sexes were visited by pyralid moths at night and by
calliphorid flies in the evening. Pollen was found attached on
these insects visiting Nepenthes flowers. The pattern of nectar
production of sepals is regarded as attracting nocturnal flying
insects and avoiding ants, while the pitchers attract ants by
nectar secreted on the pitcher rim.

Kind regards
Jan

Next message: Rand Nicholson: "Re: Non-pitchering Nep -> Carnivorous bromeliads"
Previous message: j sullivan: "National Geographic -- May 1961"
Maybe in reply to: Ide Laurent: "Eau de Nepenthes for Men"
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