Orchids in Oaxaca

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A friend is a field herpetologist (see HERP.MX / Discovering, Rediscovering, and Conserving Mexico's Herpetofauna ). He photographed these orchids near Totontepec, Oaxaca. This is in the Sierra Madre Oriental northeast of Oaxaca city. I can tell the first is in the Oncidium alliance and the yellow ones look like Lycaste. Can anybody provide more information? Is the red one something in the Stanhopinae?

[Roberta]

The first one looks like maybe Odontoglossum or Lemboglossum The 3 middle ones are definitely Lycaste. There are several species that look very similar ( I have aromatica, cochleata, and consobrina, there are others) Perhaps you can make a better ID from the location. The red one looks a lot like Encyclia vitellina. Do you have a photo of the rest of the plant? Looked it up in Orchidwiz, and E. vitellina is native to that area.

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That's all he took, thank you.

[Optimist]

lycaste crinita, Prosthechea vitellina

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Thank you.