Plants without leafy stem
Leaves distichous, equitant
| Leaves ensiform , flattened with broad overlapping sheaths at the
base; sepals free; lip clawed , entire; pollinia four |
Oberonia |
| Leaves leathery , compressed ; sepals connate at the base, erect,
base of the lateral speals form a chin with the column foot; lip clawed,
appendaged; pollinia two |
Podochilus. |
Leaves not distichous , not equitant
Stem non terete
Leaves terete,elongate, obtuse; flowers in cluster of 3 or 4, opening
one at a time ; sepals nearly equal ; lip sessile at the base of
the column, column very short , truncate ; pollinia two |
Luisia |
Stem non terete
Stem very short with leathery leaves
Leaves hanging downward
Leaves mottled with blue-grey patches; inflorescence from alternate
sides; sepals widely spreading , petals narrow , disc variously
appendaged , column suberect, foot may or may not be present ; pollinia
two |
Phalaenopsis |
Leaves not hanging downward
Inflorescence axix persisting to flower several times; flowers
not spurred ,sepals subequal , dorsal sepal hooded; column slightly
winged upward; pollinia four |
Sirhookera. |
| Inflorescence few flowered , not persisting ; sepals short, spathaceous
; column short broad truncate ; pollinia two |
Gastrochilus . |
Stem very short with fleshy leaves
Leaves flat, keeled, or cylindric; sepals and petals adnate to
the basis of the column , spreading , subsimilar ; lip trilobed
,s purred , jointed a little to the foot of the column by the back
edges of the side lobes ,s pur with callus |
Sarcanthus . |
| Leaves fleshy , narrow sub-terete; flowers small , in long sub-speciform
raceme ; sepals free, subequal ; lip sessile , two spurred , jointed
at the base of the short, truncate column |
Diplocentrum. |
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