U. ochroleuca/stygia

From: Barry Meyers-Rice (bamrice@ucdavis.edu)
Date: Mon Sep 21 1998 - 08:41:52 PDT

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Date: Mon, 21 Sep 1998 08:41:52 -0700 (PDT)
From: Barry Meyers-Rice <bamrice@ucdavis.edu>
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg3073$foo@default>
Subject: U. ochroleuca/stygia

> In 'A Flora of Cumbria' Halliday gives an alternative means of
> distinguishing U.stygia and ochroleuca. The former is described as
> 'characterised by having 2-9 teeth on the ultimate leaf segments, each
> often with several bristles', while the later as having 'longer and
> narrower leaf segments, with 0-5 teeth and fewer bristles'. How reliable
> are these characteristics for identification?
>
> David Surry

Dear David,

I would be most cautious about using G. Thor's quadrifid gland criteria
alone. Here in California we have U. ochroleuca in a few lakes and they
have quadrifid glands more like U. stygia than U. ochroleuca! I suspect
there may be regional differences in this matter.

I am sorry, but have no experience with U. stygia.

Sincerely

Barry

------------------------
Dr. Barry A. Meyers-Rice
Carnivorous Plant Newsletter
Conservation Coeditor
barry@carnivorousplants.org
http://www.carnivorousplants.org

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