What Ptychosperma is this? clumping palm

[palmtodd]

Hi , can anyone help ID this Ptychosperma?  It is a clumper, and has thin stems, red seeds, and sort of narrow leaflets. 

It produced seeds but they seem to get black sooty mold fungus on the seed bracts. 

Thanks

[palmsOrl]

Is there any reason to believe it is not P. macarthurii?

[palmtodd]

I just thought Macarthurii clumped heavier, and had different leaves maybe ?

 

[palmtodd]

Also I have another smaller plant I grew from what I thought was Macarthurii seeds, and the plants have these markings / colors on them.
I don't see these markings at all on the bigger clumper pictured above.

[Jeff Searle]

Looks like a macarthuri to me. And being thinner than another has no bearing.

Jeff

 

[palmtodd]

Thanks Jeff,  do you think those smaller palms with the markings look like young macarthurii's also ?  

I wonder if those markings are from being in more shade than my bigger palm ?
 

[akamu]

I have seen P. Cuneatum have similar markings. That could be a possibility