Re: Allergies and CP

From: Richard Jenkins (
Date: Tue Feb 02 1999 - 09:52:05 PST

Date: Tue, 02 Feb 1999 09:52:05 PST
From: "Richard Jenkins" <>
Message-Id: <aabcdefg302$foo@default>
Subject: Re: Allergies and CP

David and All,

>Plants can also cause simple primary chemical irritation similar to
>damage produced by acids. Plant examples here are buttercups, >daphne,
>peppers. I'm guessing that this is the basis of pepper sprays >causing
>eye irritation.
>My guess is that you are experiencing a contact allergic reaction
>similar to
>poison ivy. It would be interesting if someone could collect enough
>Drosera dew to use a microprobe to measure the pH.

The pH of the mucilage of Drosera capensis is reported to be 5.0 in _The
Carnivorous Plants_ by Juniper et al. I don't think this would be
sufficient to damage human skin in the short term. Drosophyllum on the
other hand is reported to have a pH of 2.5-3.0. I wouldn't want any of
that in my eye!

Richard Jenkins

This archive was generated by hypermail 2b30 : Tue Jan 02 2001 - 17:31:54 PST