Accolade Elm tree of the year 2012.

http://www.urban-forestry.com/...

I glanced at the Flora of China earlier. It says the leaflets may be opposite, but unfortunately does not describe the leaf arrangement on the flowering stems. So it provides us no useful information on whether leaves are alternate or opposite.

I think Rick is right. The fallen elm in your photo has much smaller twigs and shorter internodes. The bark color and the overall shape of the tree are similar, but the branch structure is wrong.

JRsbugs said:Look at Accolade Elm which I posted the details of above.

I'm looking at your link:
You're telling me that you can't see that the twig in the lower pic (transposed onto the end of any branch of the tree above it)


is WAY thinner than this?


Then there is no point in disputing anything else, and I won't waste any more of your time here.

Cyclaminist said:I glanced at the Flora of China earlier. It says the leaflets may be opposite, but unfortunately does not describe the leaf arrangement on the flowering stems. So it provides us no useful information on whether leaves are alternate or opposite.

Precisely, the fact that there has been no useful information given on whether leaves are opposite or alternative does suggest there is no set pattern.

Would you say this tree has smaller internodes?

http://www.smith.edu/gardens/b...



The clip I posted from the pdf explains why the twigs continue to grow through the summer, did you read it?

Rick, we are looking at a tree which had it's growth interrupted (it was dying over summer) so would you really expect it to look normal?

And you would expect twigs to be thicker if a tree was sickly? Shorter, yes, but not thicker!

If anything, twigs would be even thinner on a sickly tree. There is nothing broken off, and they don't look thin to me.

Yeah, that tree has shorter internodes. You can see that with the fatter buds (which are flowerbuds) on the twigs in the upper right of the photo, for instance. They are so close together that they almost look like solid wings on the twigs. You have to look close to see the gaps between the buds. So the internodes between the flower buds are probably less than an inch.

The vegetative buds can barely be seen in the photo on the distal end of the twigs, because they are much smaller than flowerbuds. They only show up as slightly darker spots on the twigs, because the photo isn't quite detailed enough.

All this reminds me of our Siberian elm, which also had very short internodes and flowerbuds and vegetative buds on different parts of the twigs. Here's a photo of what the flowerbuds look like. It's magnified a bit; the actual thing is, I think, about 2/3 of the size.

https://www.flickr.com/photos/...

Just wondering, is the crack on the trunk facing south-west? I'm wondering if it is a frost crack and, just to throw another possibility out there, could it have been a maple? The City was apparently taking maples out as well as EAB ashes (saw that somewhere but would have to find it again). Maples are prone to frost cracks (so are horse chestnut), and some lists include elm as susceptible too although I don't recall seeing it on an elm around here. I see it on young maples though A picture of young maple architecture:

https://www.google.ca/search?q...

There are other maples on the street. Whether they were still planting them prior to 2007 I have no idea.

Edited to add: It's hard to see the branch let alone leaf arrangement on the ID tree, but I see a couple of places where it looks opposite. That would rule out elm.

October 2012 more clearly shows branches, and some look opposite:

Leftwood said:And you would expect twigs to be thicker if a tree was sickly? Shorter, yes, but not thicker!

If anything, twigs would be even thinner on a sickly tree. There is nothing broken off, and they don't look thin to me.

I'm interested as to why you edited out your remarks on your previous post Rick. If you're going to say it without due consideration, then say it. I don't recall anyone asking you to "waste/waist" your time.

I think you have misunderstood, if a tree was sickly it's not so likely to be growing new shoots. That branch you are looking at is a low branch, I fail to see how you can tell nothing was broken off. To look at one low branch and to dismiss the entire rest of the tree is not very scientific. The tree had a crack in the bark in 2007 so it may have been struggling for some years before dying. Brain storming is good to sort the straw from the chaff but let's keep it civil?

Gabriel, you must have super vision to be able to see buds on that tree! There are branches behind branches which makes it difficult to see which the twigs belong to. Look to the left and there looks to be very long internodes. Looking again, there may be close buds near the end of twigs but that is at the very ends. Adding that branches further down look distorted due to expansion of pixels so I'm not so sure about those being buds.



Sue, I think the new trees in front of the flats are Maples, or at least some of them. The impression I'm getting from the dark leaves on the 2007 shot is that the leaves are single and drooping downwards. I doubt we are going to solve what type of tree it was, we can only use a certain amount of "conjecture".

I think you are right on there being some opposite branches.

Are these ringed branches opposite on the Accolade Elm? Or nearly opposite?

I would have said almost but not quite, the left one nearer opposite than the right but they look to be not quite on the opposite side from each other but at a shallower angle. According to the blurb from Morton Arboretum, Accolade has yellow fall foliage - not sure if we can get a Google shot from the time when it should be doing that, or it might be another clue.

What made me think of maple was that the leaves get a bit ratty towards the end of the season, on some types they get dark green and sometimes a bit scorched which would fit with the September 2007 picture maybe.

As an impartial observer, I would call them nearly opposite.

I didn't find an autumn leaf shot of the tree Sue, maybe another search might reveal one as they don't always come up!

Google street images are not always going to give us the correct impression. I noticed the lower branch in the zoomed in October 2012 shot I cropped has been split!

I managed to get a close shot of the October 2012 top of the tree. Ringed in red the two which look opposite, or near opposite?

Bear in mind that some of the top has been shifted out of alignment, and the tree would be dead at that time so no new buds would be forming.

I can see a few more that look opposite too but on some others it's hard to be sure the opposite one isn't from another branch. We're doing a lot of free advertising for Walgreen's

I found where an Accolade Elm is! More of them along the street too! I've found the location, just have to decide which is the east side on the northeast junction. There's a bare tree on the corner which might be the location mentioned.

Accolade is a selection of a hybrid, believed to be between Japanese Elm and Wilson Elm. The largest tree can be found near the intersection of 17th Avenue South and 32nd Street South, along the east side of the street on the northeast section. As you continue north along 32nd Street, there are six Accolade Elm scattered through the next few blocks. Another interesting characteristic is that the bark has a distinct gray color in its youth.

https://www.google.co.uk/searc...

https://www.cityoffargo.com/at...

https://www.cityoffargo.com/Ci...

https://www.google.co.uk/maps/...

There's 32nd Street S and 32nd Street SW.

https://www.google.co.uk/maps/...

These are the Accolade Elm trees in August 2011..

https://www.google.co.uk/maps/...

Still in leaf in October 2013, but the first tree has some browning on the leaves.

https://www.google.co.uk/maps/...

There's none showing bare branches other than the first link with a tree on the corner (south west) with 17th Ave S in September 2013 and that isn't mentioned.

https://www.google.co.uk/maps/...

Maybe we can find more trees in other locations?

This is said to be Accolade Elm, it's got yellow autumn leaves but it's on pinterest which I can't access. I can enlarge the pic though.

https://www.google.co.uk/searc...

http://www.chicagolandgrows.or...

It has opposite branches in several places near the top.

When young, Accolade is somewhat gangly with numerous limbs growing up and out

In 1873, Chico, California Founder John Bidwell planted 56 American elms in the central plaza of the City. By 2003, any remaining elms had been removed due to structural deficiencies. During the plaza reconstruction design process, we recommended Accolade as a replacement and in 2006, twelve Accolade elms were planted during the final phases of the plaza reconstruction.

There is a second planting of Accolade in Chico on DeGarmo Drive.

http://www.urban-forestry.com/...

DeGarmo Drive, Chico .. in February 2012. The article was in 2012 and the trees had been in three seasons.

https://www.google.co.uk/maps/...