| Scientific Name | Authority | Status |
|---|---|---|
| Xylobium stachyobiorum | (Rchb.f.) Hemsl. | synonym |
| Maxillaria stachyobiorum | Rchb.f. | synonym |
| Xylobium ecuadorense | Rolfe | synonym |
| Xylobium filomenoi | Schltr. | synonym |
| Xylobium concavum | (Lindl.) Hemsl. | synonym |
| Maxillaria foveata | Lindl. | synonym |
| Maxillaria concava | Lindl. | synonym |
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