Rare Tree Help to Identify

Question: Hello, for 6 year I have been caring about this plant that I inherited from the office. Nobody can tell me what plant/tree it is. Even at multiple nurseries. Can you help me identify it so I can take better care of it?,

responder: Jacki D., Master Gardener Diagnostician Volunteer (Washington, Multnomah and Clackamas Counties) Oregon State University Extension Service Volunteer Metro Master Gardeners (http://metromastergardeners.org/) Replied July 26, 2023, 1:20 PM EDT
response: At first I thought this was a Norfolk Island pine (Araucaria heterophylla). The photos don’t match well though. Compare it to online photos of seedlings or small Klinki pine, (Araucaria hunsteinii).

responder: The Question Asker Replied July 27, 2023, 9:03 AM EDT
response: Thank you!Wow. I wonder how it made it to Michigan. Seems to be threatened species in Papua, New Guinea. Seems to be a very large tree and I have it indoors on a 27ft ceiling office. Would it be appropriate to prune or transplant to a larger pot it to make it healthier and taller. I definitely not want to affect negatively. Even more now that I know what it is.Thank you very much. I am so excited about my Klinki Pine.MiguelOn Jul 26, 2023, at 13:20, Ask Extension <<personal data hidden>> wrote:﻿

responder: Jacki D., Master Gardener Diagnostician Volunteer (Washington, Multnomah and Clackamas Counties) Oregon State University Extension Service Volunteer Metro Master Gardeners (http://metromastergardeners.org/) Replied July 27, 2023, 9:57 AM EDT
response: Follow care instructions you find online for Norfolk Island pines grown as houseplants. The trees grow slowly, but eventually may be too large for your office. You won’t be able to plant this tropical tree outside in Michigan though! The tree is one of the Araucaria, I’m confident of that. The Araucaria hunsteinii, Klinki-Pine is, as you say, rare. The Norfolk Island pine is often available in North America as a houseplant so could it be that yours is the Norfolk Island pine with atypical growth habit? I’ll see if there is an expert available with specific knowledge of these trees to help us out. If you get no reply, it means we don’t have anyone in our system. Whichever type of  Araucaria you’re growing, it’s doing well so far.

responder: The Question Asker Replied August 14, 2023, 10:08 AM EDT
response: Good morning,I am sorry to write you again. Days before my previous message I could see that the pine top branches were tilting down a bit. Since there lots of new growht I thaught it was growing well and watered a little more. I came 10 days after a trip and I see that the plant is drying but pot still has some humidity. The general instructions say to keep it well watered and away from direct sun.I had this plant at home for 6 years, on basement, at around 68F and watering once /month. Brought to office 4 months ago temperature here is 77F and brighter. First I let it adapt for 2 months then I repotted.It looks to me that is dying. I would like to make sure it strives and does well. I believe my window is small. What can I do? Appreciate the help. Here some pics.Thank you!MiguelOn Jul 27, 2023, at 09:57, Ask Extension <<personal data hidden>> wrote:﻿

responder: Jacki D., Master Gardener Diagnostician Volunteer (Washington, Multnomah and Clackamas Counties) Oregon State University Extension Service Volunteer Metro Master Gardeners (http://metromastergardeners.org/) Replied August 14, 2023, 9:15 PM EDT
response: I can not say with certainty what will happen, or why it is declining. Light could be too bright, or air humidity too low, or temperature changed too quickly, or there is a draft from air conditioning. The growing tip does look dead. All you can do is continue to care for it and see if it recovers. Do not overwater or fertilize a stressed plant. “Wait and see” is my best advice for you.