On Ptaeroxylon obliquum
Zhiwei Liu
liu.zhiwei at ENTOM.SLU.SE
Wed Dec 17 09:37:12 CST 1997
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Dear All,
Since I posted my request for information on sneezewood, I have received =
many replies, which will help me a lot. I hereby want to express my =
gratetude to all of you who replied. And I also forward here one =
particular reply from Dr. Dave MacDevette of Empowerment for African =
Sustainable Development in South Africa, in case some of you may also =
get interested in African plants in general, and, of cause, on =
Ptaeroxylon obliquum in particular.
Thanks again.
Zhiwei
-----Original Message-----
From: Dave MacDevette <dmacdev at icon.co.za>
To: Zhiwei Liu <liu.zhiwei at entom.slu.se>
Date: 17 December 1997 05:29
Subject: Re: On Ptaeroxylon obliquum
Good Morning Zhiwei,=20
Just for general information - we hope to launch the ful indigenous =
forest website for South Africa, early next year, which will have much =
of the information that you need.=20
Ptaeroxylon occurs fairly widely distributed in Southern Africa along =
most of eastern South Africa, Swaziland, Southern and central =
Mozambique, southern Zimbabwe and northern Namibia.=20
I wil give you a brief answer and provide you with references as to =
where you can obtain more information.=20
In answer to your questions:=20
1) It is not only limited to closed forest, it occurs in a wide range =
of habitats from coastal, montane and sand forests and bushveld. It is =
occurs across a wide range of habitats but is not a significant =
component of the forests and that is why it is classified as =
cosmopolitan.=20
2) Again due to it's range of habitats it ccurs in areas which are wet =
(rainfall or around 1100mm per annum or even higher) to dry (500 mmm per =
annum).=20
3) At low altitudes and in drier areas it is small single or =
multi-stemmed, with a cone shapped crown and it reraches heights from 5 =
- 7m. In tall forests is is tall and straight (diamter up to at least =
1.3m) with a stem sometimes fluted and it reaches heights of 20m and =
taller.=20
You can obatin further information from the following Sources.=20
1) The National Botanical Institute ( =
http://www.nbi.ac.za/aboutnbi.htm) maintains the most comprehensive =
database on plants in the country and may provide you with information - =
check out their website.=20
2) Dr. Coert Geldenhuys is one of Southern Africa's foremost indigenous =
forest ecologists and will have some useful insights for you. He is a =
private consultant and his e-mail address is cgelden at cis.co.za=20
3) Prof Braan Van Wyk is one of the foremost authorities on indigenous =
trees and has published widely on the subject. His e-mail address is =
avanwyk at scientia.ac.za and his organizations website is =
http://www.up.ac.za/academic/botany/index.html.=20
4) Ann Tapson has done a lot of work on indigenous forest trees and is =
responsible for a CD ROM with information on trees - e-mail her at =
atapson at csir.co.za.=20
5) Dr. Tony Cunningham an ethonobotanist has extensive experience of =
forests in Africa and started off with work in the entomological field =
he would be a great source of specific information. His e-mail address =
is ethnobot at iafrica.com=20
6) Check out the Ecological Research Department of Zoology, University =
of Natal,=20
Pietermaritzburg - The Forest Biodiversity Programme =
http://www.unp.ac.za/UNPDepartments/zoo/depecol.html=20
7) Look at the following website, there may be more info 60 Indigenous =
Trees of gauteng=20
http://www.websight.co.za/treehouse/gautengtrees.html=20
8) Also look at this site - one of their forest ecologists Dr. Amin =
Seydack would have useful information as well : Department of Water =
Affairs and Forestry=20
http://www.gov.za/dwaf/web-pages/Forestry/=20
=20
I hope that this will help you to go further.=20
Regards,=20
=20
Dave=20
--=20
Dave MacDevette=20
Empowerment for African Sustainable Development=20
P.O. Box 165, Greenpoint 8051, Cape Town. South Africa=20
Phone: 021 434-2847 International: +27 21 434-6012/434-2847=20
Fax: 021 434-6134 International: +27 21 434-6134=20
Cell: 083 306 0030 International :+27 83 3060030=20
E-mail: dmacdev at icon.co.za Web: http://easd.org.za/=20
=20
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<DIV><FONT color=3D#000000>Dear All,</FONT></DIV>
<DIV><FONT color=3D#000000></FONT> </DIV>
<DIV>Since I posted my request for information on sneezewood, I have =
received=20
many replies, which will help me a lot. I hereby want to express my =
gratetude to=20
all of you who replied. And I also forward here one particular reply =
from Dr.=20
Dave MacDevette of Empowerment for African Sustainable Development =
in=20
South Africa, in case some of you may also get interested in African =
plants in=20
general, and, of cause, o<FONT size=3D1><FONT size=3D3>n Ptaeroxylon =
obliquum in=20
particular.</FONT></FONT></DIV>
<DIV>Thanks again.</DIV>
<DIV> </DIV>
<DIV>Zhiwei</DIV>
<DIV><FONT color=3D#000000></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2><B>-----Original =
Message-----</B><BR><B>From:=20
</B>Dave MacDevette <<A=20
href=3D"mailto:dmacdev at icon.co.za">dmacdev at icon.co.za</A>><BR><B>To: =
</B>Zhiwei=20
Liu <<A=20
href=3D"mailto:liu.zhiwei at entom.slu.se">liu.zhiwei at entom.slu.se</A>><B=
R><B>Date:=20
</B>17 December 1997 05:29<BR><B>Subject: </B>Re: On Ptaeroxylon=20
obliquum<BR><BR></DIV></FONT>Good Morning Zhiwei, <BR>Just for general=20
information - we hope to launch the ful indigenous forest website for =
South=20
Africa, early next year, which will have much of the information that =
you need.=20
<P>Ptaeroxylon occurs fairly widely distributed in Southern Africa along =
most of=20
eastern South Africa, Swaziland, Southern and central Mozambique, =
southern=20
Zimbabwe and northern Namibia.=20
<P>I wil give you a brief answer and provide you with references as to =
where you=20
can obtain more information.=20
<P>In answer to your questions:=20
<P>1) It is not only limited to closed forest, it occurs in a wide =
range=20
of habitats from coastal, montane and sand forests and bushveld. =
It is=20
occurs across a wide range of habitats but is not a significant =
component of the=20
forests and that is why it is classified as cosmopolitan. <BR>2) =
Again due=20
to it's range of habitats it ccurs in areas which are wet (rainfall or =
around=20
1100mm per annum or even higher) to dry (500 mmm per annum). =
<BR>3) At low=20
altitudes and in drier areas it is small single or multi-stemmed, with a =
cone=20
shapped crown and it reraches heights from 5 - 7m. In tall forests =
is is=20
tall and straight (diamter up to at least 1.3m) with a stem sometimes =
fluted and=20
it reaches heights of 20m and taller.=20
<P>You can obatin further information from the following Sources. =
<BR>1) =20
The National Botanical Institute ( <A=20
href=3D"http://www.nbi.ac.za/aboutnbi.htm">http://www.nbi.ac.za/aboutnbi.=
htm</A>)=20
maintains the most comprehensive database on plants in the country and =
may=20
provide you with information - check out their website. <BR>2) Dr. =
Coert=20
Geldenhuys is one of Southern Africa's foremost indigenous forest =
ecologists and=20
will have some useful insights for you. He is a private consultant =
and his=20
e-mail address is cgelden at cis.co.za <BR>3) Prof Braan Van Wyk is =
one of=20
the foremost authorities on indigenous trees and has published widely on =
the=20
subject. His e-mail address is avanwyk at scientia.ac.za and his=20
organizations website is <A=20
href=3D"http://www.up.ac.za/academic/botany/index.html">http://www.up.ac.=
za/academic/botany/index.html</A>.=20
<BR>4) Ann Tapson has done a lot of work on indigenous forest =
trees and is=20
responsible for a CD ROM with information on trees - e-mail her at=20
atapson at csir.co.za. <BR>5) Dr. Tony Cunningham an ethonobotanist has =
extensive=20
experience of forests in Africa and started off with work in the =
entomological=20
field he would be a great source of specific information. His e-mail =
address is=20
ethnobot at iafrica.com <BR>6) Check out the Ecological Research =
Department=20
of Zoology, University of Natal, <BR> Pietermaritzburg - The =
Forest=20
Biodiversity Programme <A=20
href=3D"http://www.unp.ac.za/UNPDepartments/zoo/depecol.html">http://www.=
unp.ac.za/UNPDepartments/zoo/depecol.html</A>=20
<BR>7) Look at the following website, there may be more info 60 =
Indigenous=20
Trees of gauteng <BR> <A=20
href=3D"http://www.websight.co.za/treehouse/gautengtrees.html">http://www=
.websight.co.za/treehouse/gautengtrees.html</A>=20
<BR>8) Also look at this site - one of their forest ecologists Dr. =
Amin=20
Seydack would have useful information as well : Department of Water =
Affairs and=20
Forestry <BR> <A=20
href=3D"http://www.gov.za/dwaf/web-pages/Forestry/Conserv/consarea.html">=
http://www.gov.za/dwaf/web-pages/Forestry/</A>=20
<BR> =20
<P>I hope that this will help you to go further.=20
<P>Regards, <BR> =20
<P>Dave=20
<P>-- <BR>Dave MacDevette <BR>Empowerment for African Sustainable =
Development=20
<BR>P.O. Box 165, Greenpoint 8051, Cape Town. South Africa <BR>Phone: =
021=20
434-2847 International: +27 21 434-6012/434-2847 <BR>Fax: 021 434-6134=20
International: +27 21 434-6134 <BR>Cell: 083 306 0030 International :+27 =
83=20
3060030 <BR>E-mail: dmacdev at icon.co.za Web: <A=20
href=3D"http://easd.org.za/">http://easd.org.za/</A> <BR> =
</P></BODY></HTML>
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