1
Tropical Fruit Discussion / Re: Macadamia tree exhibiting hybrid traits
« on: April 06, 2021, 10:57:44 PM »It's not that simple. Integrifolia can have 4, and tetraphylla can have 3. Also young integrifolias are serrated. If you look at photos of integrifolia you'll see plenty with setrrated margins, and if you look at photos of tetraphylla you'll see plenty with smooth/entire margins. Same thing with flower color. There are hybrids as well. I would like to learn how to properly distinguish the two, maybe the nut is the only sure way? I've read most trees in CA are integrifolia, and I've also read they're tetraphylla.
Here's a pdf with some info. If the link doesn't work it's called Brief Intro to Macads https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjV0KCF_ervAhXTG80KHYpjB68QFjAKegQIAxAD&url=https%3A%2F%2Fwildmacadamias.wpengine.com%2Fwp-content%2Fuploads%2F2020%2F01%2FBrief-Intro-to-Macads.pdf&usg=AOvVaw2KNJGNcCluq1Ya8seEt2s2
https://www.inaturalist.org/taxa/346223-Macadamia-tetraphylla/browse_photos?quality_grade=any
https://www.inaturalist.org/taxa/287245-Macadamia-integrifolia/browse_photos?quality_grade=any
This is great info. I didn't know that juvenile integrifolias also have serrated leaves. My Integrifolia in the pot is an air-layer from a mature nut producing tree and so it has smooth edges. Do you have a Macadamia tree here in the Bay Area ? I have this unknown variety in the ground and a Cate seedling and an air-layered Arkin Papershell in pots.