kjhsscioly wrote:I think it would be fairly accurate, though they might add specimens. The list is 162 trees long, so it is doubtful... and I don't think trees have evolved in the past seven years .
On another note, does anyone have a surefire way to identify the 19 different species of pine? they all seem so similar, and you can only really go off needle length and needle number in a petiole since color is somewhat unreliable. It would be hard if they gave us just a branch...
19? When I did Forestry last, there were only like 6 pines on the list.
Needle number is the most important, followed by needle length. They pick specimens so that no two have the same number of needles in a bunch plus the same needle length, for pines at least.
That was really the only thing I could ID, to be honest. The spruces all looked the same to me, as did the oaks, birches, and beeches.
Re: Preliminary:Forestry
Posted: July 6th, 2011, 1:05 pm
by PacificGoldenPlover
I have started a leaf collection to help for forestry, and I was wondering if there were any veteran pressers to help give tips on avoiding rot on the leaves, and other problems.
Re: Preliminary:Forestry
Posted: July 8th, 2011, 6:26 am
by sciencechic
You can preserve leaves a number of ways-- pressing, the wax paper pressing or soaking in glycerine and water (1:2) then drying.
Re: Preliminary:Forestry
Posted: July 8th, 2011, 9:01 am
by tuftedtitmouse12
i was going to use the microwave...
and if that didn't work, with the heavy book method....
Re: Preliminary:Forestry
Posted: July 8th, 2011, 2:16 pm
by NYLHVSSO
Does anyone know if ironing a leaf in wax paper covered with a towel works?
Re: Preliminary:Forestry
Posted: July 8th, 2011, 2:19 pm
by tuftedtitmouse12
why don't you try it?
Re: Preliminary:Forestry
Posted: July 8th, 2011, 2:35 pm
by NYLHVSSO
All right, I'll try it and I'll see how it goes...
Re: Preliminary:Forestry
Posted: July 8th, 2011, 2:38 pm
by tuftedtitmouse12
yes
let us know
im hoping that might be a better method than the heavy book one or the microwave...
im a little scared now to use the microwave....ive had terrible experiences...such as burning one out several times in a row
Re: Preliminary:Forestry
Posted: July 8th, 2011, 4:03 pm
by NYLHVSSO
Apparently I didn't have wax paper. I tried the plastic from a Ziploc bag and parchment paper. They both do not work.
OK, here are the microwave results:
This is the first one, which I put into the microwave [b]between some paper towels and on top of a plate[/b].
[img]http://i55.tinypic.com/2j425jm.jpg[/img]
This is the second one, which I put into the microwave [b]between some paper towels and under a plate[/b]. This method seems to work.
[img]http://i52.tinypic.com/k2g3f9.jpg[/img]
Re: Preliminary:Forestry
Posted: July 8th, 2011, 8:17 pm
by anatomy
ok one question, why are you trying to do something that takes sooo much effort when the pictures of the leaves are in the book?
preserving leaves takes a long time and you aren't going to find a lot of many specimens
don't get me wrong, it is a GREAT activity, its fun, but not the best way to study
.