Spots under Epidendrum leaves

[Paul Mc]

What could these be? They are only on the undersides of the leaves.

[WhiteRabbit]

My small epi has some spots like this - tho they are from a few years ago - I hope someone can say what causes it. To me, it looks like a fungal issue maybe - tho I can say on mine, it never progressed, or seemed to harm the plant in any way ...

[Paul Mc]

Some are sunken, others aren't. My first thought was fungus or perhaps exposure to cold. I'm just perplexed because it's only on the underside. I can't even see the sunken spots from the top. No sign of damage until you look under the leaves, thus why I never saw it until today when I moved it inside.

[WhiteRabbit]

Originally Posted by Paul Mc

Some are sunken, others aren't. My first thought was fungus or perhaps exposure to cold. I'm just perplexed because it's only on the underside. I can't even see the sunken spots from the top. No sign of damage until you look under the leaves, thus why I never saw it until today when I moved it inside.

I don't know if spots on mine were sunken, but definitely only on the undersides - I'll have to go look at it ...

Do you have the name of yours?

[Paul Mc]

No name other than poor man's orchid. I believe it to be radicans, but who knows.

[WhiteRabbit]

Ah ok... spots on mine do seem the same. Mine does grow outside in winter when it's cool and damp, and I have wondered if that's the cause... I hope someone can help identify this ...