"Morphological character";States
"Number of leaves per pseudobulb";"(0) = 1-leaved pseudobulb"
"(1) = 2-leaved pseudobulb"
"Pseudobulb size";"(0) = distinct pseudobulb: diameter of pseudobulb more than 1.5 times the diameter of petiole or leaf base"
"(1) = indistinct pseudobulb: diameter of pseudobulb equal or less than 1.5 times the diameter of petiole or leaf base"
"Swollen apical sterile flower";"(0) = absent"
"(1) = present"
"Number of flowers per inflorescence";"(0) = 1-flowered"
"(1) = 2–3-flowered"
"(2) = multiple-flowered (> 3-flowered)"
"Connation of lower margin of lateral sepals";"(0) = free"
"(1) = connate"
"Ratio of sepal lengths (lateral to dorsal)";"(0) = similar: lateral sepals 1.0–1.5 times as long as the dorsal sepal"
"(1) = different: lateral sepals > 1.5 times as long as the dorsal sepal"