| Plant habit (cm) | Caespitose, erect, to 5 | Small, erect, up to 8.3 | Caespitose, nodding or prostrate stems, up to 5 |
|---|
| Ramicaul length (cm) | 1.6–3.0 | 4.0–5.0 | 3.5–5.0 |
|---|
| Leaf shape | Elliptic, acute | Ovate, acute | Ovate, acute |
|---|
| Leaf size (cm) | 2.0–2.5 × 1.0–1.3 | 2.0–2.9 × 1.4–2.1 | 2.7 × 1.2–1.4 |
|---|
| Inflorescence length (cm) | 1.5–2.0, multiflowered, zig-zag | <1 (rarely up to 1.8 many-flowered dense raceme | 1.2–1.8, 10–12-flowered, congested |
|---|
| Dorsal sepal (mm) | Ovate, denticulate, purplish red, 2.7–4.2 × 1.6–2.3 | Broadly ovate, pinkish, 2.5 | Ovate-triangular, brown, 3.0 × 1.8 |
|---|
| Lateral sepals (mm) | Ovate, green, denticulate on the outer margin, connate, 2.6–3.5 × 1.5–2.0 mm | Lanceolate-ovate, connate 1/3 length, 3.0 | Oblique, brown, connate basal 1.0, 3.0 × 1.5 mm |
|---|
| Petals | Bilobed, ruby-red, upper lobe obovate, lower lobe minute and oblong | Lanceolate, dimidiate, anterior division abbreviated | Bilobed, cinnabar-red, upper lobe cuneate, lower lobe minute, triangular |
|---|
| Lip structure | Bilaminate, blades obovate, encircling the column, apices converging | Trilobed, lateral lobes dolabriform, middle lobe minute | Bilaminate, ovate blades with umbonate base, not converging |
|---|
| Lip appendix | Cylindrical, apex bifid, pubescent | Minute, not distinctive | Globular, minutely ciliate, apiculate |
|---|
| Column | Violet, terete, broadened at apex | Colour, abruptly mucronate | Violet, semiterete |
|---|
| Flower colour | Purplish red, green, ruby, fuchsia, yellow | Pinkish sepals, reddish purple petals, dull orange centre | Brown sepals, red petals, red lip, violet column |
|---|
| Distinctive traits | Brick-red dorsal sepal with green spots; ruby-red obovate petals; bilaminate lip with converging obovate blades; cylindrical, pubescent, bifid appendix. | Broad reticulate leaves; lanceolate petals with orange centre; lip with dolabriform lateral lobes; minute appendix. | Umbonate lip blades, minute globular, apiculate appendix |
|---|
| Habitat | Premontane rainforest, 999–1020 m, Caribbean slope, Cartago, Costa Rica | Premontane rainforest, 650–1000 m, Caribbean slope, Cartago, Costa Rica | Unknown locality, known only from Endres’s drawings and notes |
|---|