Supplement, $c."] CXLVIII. ORCHIDEJ:. (J. D. Hooker.) 179 



61. SACCOLABIUM. The sepals and petals are often incurved. To the character 

 should be added Spur without a callus under the column within, or a septum. 



62. SCHCENOECHIS. As stated at p. 54 of this volume this genus was inserted by 

 oversight, Saccolabium filiforme having been mistaken for it by Thwaites. 



63. UNCIFERA and 64 ACAMPE I have been obliged to include under SACCOLA- 

 BIUM:. See remarks under the latter genus in this volume, p. 54. 



65. SARCANTHUS and 66. CLEISOSTOMA, are separated from Saccolalium, and 

 from one another, by characters so minute and trivial, that they might well rank as 

 sections of that genus, to which 67. Ornithochilus might be added. 



P. 673. Subtribe 3. SPIEANTHEJ;:. The Indian genera of this subtribe are most 

 difficult of classification. The following attempt which may aid the student, requires 

 critical revision with living specimens ; the characters of the minute fleshy column 

 and stigma being extremely difficult of accurate analysis in herbarium specimens, 

 however carefully their organs may be moistened or laid out. 



KEY TO THE INDIAN GENEEA OF SPIRANTHEJ:. 



* Spur or sac of the lip exposed beyond the base of the lateral sepals. (See also 

 a few species of Goodyera.) 



79. PHYSURUS. Lip not clawed beyond the spur, limb broad abruptly con- 

 tracted at the base j spur eglandular within ; column not appendaged in front j 

 stigma anticous. 



80. AN.ECTOCHILUS. Lip clawed beyond the spur, limb 2 -winged; spur 2 -glan- 

 dular within ; column appendaged in front ; stigmatic lobes lateral. 



81. VRYDAGZYNEA. Lip not clawed, limb oblong membranous entire; spur 

 2-glandular within j column not appendaged in front ; stigmatic lobes lateral. 



82. CYSTORCHIS. Lip saccate, contracted into a beak with a small dilated tip ; 

 sac 2-glandular within (or not?); column not appendaged in front; stigma 

 anticous. 



83. HERPYSMA. Lip adnate to the sides of the column, limb spreading ; spur 

 long, naked within ; column not appendaged in front ; stigma anticous. 



** Lip if spurred, with the spur or sac covered by the bases of the lateral sepals 

 (except in a few Goody erce). 



f Lip clawed beyond the spur or sac. 



84. ODONTOCHILUS. Lateral sepals connate at the base ; claw of lip crenate 

 toothed or fimbriate, limb usually 2-winged; sac 2-glandular within; column 

 appendaged in front ; stigmatic lobes lateral. 



85. HJSMARIA. Sepals free ; lip adnate to the base and sides of the column, claw 

 winged, limb 2-winged ; sac 2-glandular within ; column large, clavate ; stigma 

 anticous. 



90. CHEIROSTYLIS. Sepals connate to the middle in a tube ; lip with a saccate or 

 cymbiform base and 2-lobed toothed or pectinate limb, sac 2- or multi-glandular 

 within ; columnar appendages long, fleshy ; stigmatic lobes lateral. 



91. ZEUXINE. Sepals free ; lip with a cymbiform or saccate base, a short broad 

 entire toothed or crenate claw, and broadly dilated limb ; sac 2-glandular within ; 

 column with two linear appendages in front j stigmatic lobes lateral. 



ff Lip saccate or spurred, not clawed beyond the sac or spur. 



92. HYLOPHILA. Lip a large globose sac with a narrow linear inflexed blade ; 

 sac 2-glandular within ; column minutely appendaged in front; stigma anticous. 



93. GOODYERA. Lip cymbiform or subsaccate, naked or setose within ; column 

 not appendaged in front; stigma anticous. 



94. HET^ERIA. Sepals free at the base or connate, lip adnate to the sides of the 

 column, limb entire or 2-lobed ; sac 2-glandular or setose within j column winged 

 or not in front ; stigmatic lobes lateral. 



N 2 



