Dear colleagues,
See also the illustrations of catkin scales and bud scales of Populus tremula in the attached pdf (plate fig. 5).
Best wishes,
Bas van Geel
-----Original Message-----
From: The archaeobotany mailing list on behalf of Allan Hall
Sent: Thu 4/28/2011 2:23 PM
To: [log in to unmask]
Subject: Re: help with ID
Just to add a small comment, too... as far as I am aware the bud-scales of
Populus are not identifiable to species, but P. tremula may well be the most
likely candidate in Denmark (I don't know the Danish flora). However, one
should also look out for the *catkin-scales* of Populus, which are much less
substantial than the bud-scales (and therefore much less likely to survive
the drying of processed samples in the way that the bud-scales do).
On the basis of catkin-scales, I have been able to suggest that the Populus
bud-scales which are a frequent component of early Mesolithic peats at Star
Car in NE England, ARE P. tremula...
I might also mention that Philippa Tomlinson's article on bud-scales (in
Circaea) can be downloaded free at
http://www.envarch.net/publications/circaea/circaea-3-2.html
(see Fig 42, p 89 regarding catkin scales).
Allan
On 28 April 2011 09:21, Radoslaw Grabowski
<[log in to unmask]>wrote:
> Dear all,
>
>
>
> Does anyone have any idea what these are? The sample derives from an Iron
> Age well in Denmark. The material was waterlogged, but was, prior to being
> sent to me floated and dried.
>
> Thanks in advance!
>
>
>
> *Radoslaw Grabowski*
>
-------------------------------------------------
Dr Bas van Geel
E-mail: [log in to unmask] Phone: +31 20 525 7664 Fax: +31 20
525 7832
http://home.medewerker.uva.nl/b.vangeel/
Institute for Biodiversity and Ecosystem Dynamics (IBED)
http://www.science.uva.nl/ibed
Research Group Paleoecology and Landscape Ecology
Faculty of Science, Universiteit van Amsterdam
Science Park 904, P.O. Box 94248
1090 GE Amsterdam, The Netherlands
-------------------------------------------------
|