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[TBM]

While this isn't the healthiest example of P. nexus (had some insect damage but that's no more thanks to insecticidal soap), I received this P. nexus leaf from a well trusted member here on STS it may only be one rooting leaf but it still shows very similar appendages off the main vein (one of the top nodes on the leaf really shows it).

[I'm aware the tip of the leaf has browning on it but that hasn't progressed further on it in weeks so I'm not worried ]

[marshmellow]

Thats awesome, can definitely see the little appendages

[Sunshine]

Psychotria nexus is similarly floppy like viridis is.

2 Likes happyconcacti and fairdinkumseeds like this.

[gnosis]

These are my baby P.Nexus

3 Likes TBM, happyconcacti and fairdinkumseeds like this.

[EIRN]

Viridis detail

5 Likes TBM, happyconcacti, fairdinkumseeds, plantlight and LIBERTYNY like this.

[marshmellow]

Cool pictures

[Frog Pajamas]

Are these the appendages that people have mentioned? This is on a plant sold as an alba.

[TBM]

I do see appendages on the underside, looks like you may not have Psychotria alba there. How pointed is the tip of the leaf on that plant? It's also hard to the the leaf margin at the base in the picture.

[Frog Pajamas]

Here's a few more photos. The leaves go all the way down to the stem like a viridis, plus the appendages shown above, but the leaves are pointed and wavy like an alba. It's been a slow grower, but was also in pretty rough shape when I got it and was in soil that was too heavy until a couple months ago.

2 Likes happyconcacti and LIBERTYNY like this.

[TBM]

While I cannot identify which Psychotria species it is, I can tell you that it's not alba, although there are some similarities.

1 Like Frog Pajamas likes this.

[Frog Pajamas]

Thanks, TBM.

I'd like to hear any opinions on what is actually is. I can take additional pics if any other features will help in the distinction. Thanks y'all!

1 Like happyconcacti likes this.

[Frog Pajamas]

The more I read through this thread and look at the plant, the more I think I may actually have bought an Alba and have gotten a viridis. I guess maybe theres a first time for everything!   

Uness its a nexus or a carthagenesis...

Has anyone noticed any identifying differences between the viridis and nexus?

Also, does a carthagenesis have any distinguishing traits?

It would be awesome to have a guide here to distinguish any of the psychotrias we might potentially run across.

[Saros]

Is there a difference between Alba and Carthagenesis? I was under the impression they were the same... but I could quite possibly be wrong.
I have some young viridis, nexus, and more mature and flowering alba. I'll try to take some good pictures of each.

1 Like mj likes this.

[SoulGrower]

Although I don't have any mature plants.. I have now received leaf cuttings of viridis, alba, carthagenensis and nexus.  The only one with those appendages was viridis.  BUT, they don't seem to be as pointy as the ones in your pics.  The carthagenensis are definitely the most pointy of mine.

1 Like Frog Pajamas likes this.

[Frog Pajamas]

Do the carthagenesis have leaves that go all the way back to the stem? I looked at pictures of all the types of psychotrias I could find, and it looked like the viridis and nexus are the only ones where the leaves don't close down before the stem.