Chrysalidocarpus (Dypsis) lanceolatus different cultivars- floral structure

[JD in the OC]

I recently bought a very pretty palm from a nursery here in Florida to plant in my yard.  The leaflets are lanceolate (lobed) like a standard C. lanceolatus, but the trunks grow very tall and the inflorescences are long and pendulous.  The nursery owner didn't know the exact identity of the palm.  So, I thought of an article written by Dr. William Baker of Kew about seeing two different forms of C. lanceolatus on Mayotte island in a recent expedition- a tall, thin form that grew to 30-40 feet tall and a smallish, robust form that topped out at maybe 15-20 foot tall.  So, I am wondering if this palm I just got is the "tall form" that Dr. Baker witnessed, or a new species, or perhaps it could be Chrysalidocarpus blackii (recently described by Don Hodel).  I have had several of the common C. lanceolatus growing and flowering in my yard for years here in south Florida Zone 10b.  So, I took some photos and made a comparison below.  In the comparison, I counted the orders of branching on the inflorescences which is a very accurate way to identify/compare palm species (besides floral characteristics obviously).  If you look closely, there are white boxes with red numbers.  The "tall form" is branches to 3 orders while the standard form is branched up to 5 orders.  Wouldn't this indicate they are two species?

 

[JD in the OC]

I probably should have posted this as a follow-up to a post from 2016 (below) instead of a new post.  Maybe the moderator can just re-post it on the old thread and delete this one?  If not, I apologize for the duplicate topic.