Cork Bark Japanes Black Pine (Yume-Nishiki) Split Trunk Question

I am currently awaiting a Yume-nishiki Japanese Black Pine (Cork Bark), and have been reading more about it in anticipation of its arrival.

I read this from http://bonsai.shikoku-np.co.jp/ :

"Nishikimatsu is a variety of Kuromatsu, but it has own attractiveness such as the beautifully split trunks and the air like ancient tree."

"Kagawa Bonsai Production Promotion Association started to sell the new variety of Nishikimatsu (cork bark Japanese black pine) in 2000 and it got a lot of attention. The name is "Yumenishiki". It has much attractiveness such the trunks split earlier than others and the needles of beautiful dark green."

"These two trees have thick short needles and trunks which split beautifully soon. It is said that trees having the trunk split soon are easily damaged by the pests but he solves the matter with his experiences of growing Nishikimatsu (cork bark Japanese black pine) for about 30 years."

What does "split" mean in the above ? I seem to see it noted several times in articles about cork bark pine ...

Thanks

After reading more, I think they were referring more to "split bark" than "split trunk", I guess message was lost in translation ...

And I found more good information here, for those interested in the beautiful and challenging Yumenishiki :

http://files.meetup.com/1273803/Journal_Sundamizu%2005_2013.pdf

I would love to find a source of Yume Nishiki in the USA. I have not had any experience with it, don't know where to find it.

Got mine today, just finished putting it in a pot as it came in a sack.  I love it, graft cannot be seen anymore, one of the pioneer Yume-Nishiki.

Well, in the article I posted above, this nursery is recommended as one of the best growers - i.e. graft done well.  Maybe you can write them to ask if they still have some ... website is current

www.evergreengardenworks.com

I saw some Nishiki, but you can probably ask if they have yume-nishiki.  They sure seem to know their nishiki, even developing one without the need for grafting.

http://www.evergreengardenworks.com/pinus.htm

http://www.evergreengardenworks.com/specimen.htm

Thanks Brett,
I am a regular customer of Evergreen Gardenworks. I currently have 12 different named cultivars of cork bark (Nishiki) JBP, I think 8 of them came from Evergreen. Yes, the owner, Brent Walston is one of the best at nice low grafts. All of my cork barks have been in my possession less than 10 years, so they are all in various states of becoming, nothing really photo worthy. I will shoot Brent an email, but his website does not list this variety, yet. If he does have any 'Yume', his stock is too limited to offer them yet. But thanks for the suggestion.

I will be keeping an eye out.

To import trees from Japan into the USA requires a 2 year quarantine in a USDA inspected quarantine nursery. This makes importing trees from Japan very expensive. A few nurseries do go through the trouble, and eventually I am certain 'Yume' should become available.
Thanks