Plants without leafy stem

 

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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