674 CXLTIII. ORCHIDE^:. (J. D. Hooker.) 



85. HJEMARIA. Sepals free. Claw of lip concave, entire ; blade 2-lobed. 

 Clinandrium cupular. Stem leafy ; flowers loosely spiked or racemed. 



86. DOSSINIA. Sepals "free. .Lip with erect side lobes and a 2-fid midlobe. 

 Column with a long 1 appendage in front. 



87. SPIEANTHES. Dorsal sepals and petals together forming a hood; lateral 

 and column decurrent on the ovary or spike, lax or dense -fld., often secvmd or 

 spiral. 



ft Lip not clawed (see also Spiranthes) sessile or adnate to the column; 

 base not ventricvse. 



88. NEOTTIA. Leafless scaly herbs. Sepals and petals free. Lip 2-fid. 



89. LISTEEA. Stem with 2 opposite or subopposite leaves. Sepals and petals 

 free, spreading. 



90. CnEiROSTrus. Stem laxly leafy. Sepals combined in a tube. 



ttt Lip sessile, not clawed, often adnate to the column, usually shorter 

 than the sepals, base ventricose (except Zeuxine). 



91. ZEUXINE. Sepals free, dorsal with the petals cohering in a hood. Column 

 without appendages. 



92. HYLOPHILA. Dorsal sepal hooded ; lateral obliquely adnate to the base of 

 the column. Lip with a small linear indexed blade. 



93. GOODYERA. Sepals free. Lip erect, entire. Clinandrium cup-shaped. 



94. HET^RIA. Sepals free or connate below. Lip at the base more or less 

 adnate to the column, entire or with 2 spreading lobes. 



Subtribe 4. 



95. APHYLLORCHIS. Leafless herbs. Sepals free. 



96. CRYPTOSTYLIS. Leaves one or few. Sepals and petals subulate, convolute. 

 Lip superior, broad, embracing the base of the very short column. 



97. CORYSANTHES. Dorsal sepal large; lateral small, linear or filiform. Lip 

 tubular. Low herbs, flower solitary, very large for the plant. 



Subtribe 5. 



98. POGONIA. Sepals erect or spreading. Lip undivided or 3-lobed. Column 

 elongate, not winged. Flowering stem leafy, or leafless with the leaf produced 

 afterwards. 



99. DIDYMOPLEXIS. Perianth bilabiate, upper lip formed by the dorsal sepal 

 and petals, lateral sepals conuate, forming a 2-fid lower lip. True lip very broad, 

 undivided. Slender leafless herbs, flowers small. 



100. GASTRODIA. Sepals and petals united into a ventricose 5-lobed tube. Lip 

 undivided. Leafless herbs. 



101. EPIPOGUM. Sepals narrow, free. Lip concave, saccate or shortly spurred at 

 the base. Column short. Leafless herbs. 



Subtribe 6. LIMODOREJ^. 



102. CEPHALANTHERA. Sepals conniving. Lip concave or shortly spurred at 

 the constricted base. Stem leafy; flowers and capsules erect. 



103. EPIPACTIS. Sepals free, spreading. Lip concave above the constricted 

 base. Stem leafy ; flower and capsules nodding or pendulous. 



TRIBE IV. Ophrydeae. 



Subtribe 1. SERAIME^. 

 101. OUCHIS. Lip spurred. Glands of the polliuia both in one pouch. 



