Cattleya percivaliana with black pseudobulb
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Cattleya percivaliana with black pseudobulb
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  #11  
Old 05-01-2021, 02:58 PM
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Cattleya percivaliana with black pseudobulb
 

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Cattleya percivaliana with black pseudobulb Male
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Those temperatures are OK for Cattleyas for now. The black pseudobulb may be sunburned. That's what sunburn looks like on Catts.

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  #12  
Old 05-01-2021, 04:17 PM
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Does the black coloured region appear on the other side of the bulb too? If sunburn is a candidate, then I would also assume some leaves would get at least some scorching too. Still a possibility though. Check the other side of the bulb too.
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