83. okchibacejB. 841 



6. Ophrts. Periantli patent. Lip variously lobed, witliout 

 a spur. Glands of pollen-masses each in a distinct pouch. 



7. Hbkminium. Perianth bellshaped, segments all erect. 

 Lip S-lobed, tumid beneath at tne base, without a spur. 

 Glands of the stalks of the poUen masses exserted, naked. 



Tr. IL NEOTTIDEjE. Anther attached by its base, persistent. 

 Pollen-masses granular ; granules only in a slight state of 

 cohesion ; no stalks. — Root of many fleshy fibres, rarely of 

 2 — 4 much-thickened ones. 



* Stigma with a prolongation (rostellum) at its top. 



8. GooDYBEA. Perianth ringent. Lip gibbous at the base, 

 entire, included. Stigma subcordate. Rostellum erect, bi- 

 partite, with a large squarish appendage between its slender 



9. Spibanthbs. Perianth ringent. Lip channelled, clawed, 

 fringed. Stigma roundish. Rostellum straight, at length 

 bifid, with a long linear appendage between its points. 



10. LisTEBA. Perianth ringent. Lip deflexed, 2-lobed. Stigma 

 transverse. Rostellum foliaceous, acute, arching over stigma. 

 Column very short. 



11. Neottia. Perianth hooded. Lip deflexed, 2-lobed, 

 gibbous at the base. Stigma transverse. Rostellum flat, 

 broad, prominent, entire, without an appendage. Column 

 long. 



12. Epipactis. Perianth patent. Lip interrupted ; the basal 

 division concave; terminal one (label) larger with 2 project- 

 ing plates at its base above. Stigma nearly square. B,os- 

 teUum short, terminated by a globose appendage. Anth. 

 terminal, erect, sessile, 2-ceUed. Column short. Germen 

 straight on a twisted stalk. 



** Stigma without a rostellum. 



13. Obphalantheea. Perianth converging (in C. rubra 

 spreading). Lip interrupted, the basal division gibbous, 

 jointed to the recurved label. Stigma transverse. Anth. 

 terminal, erect, movable, shortly and thickly stalked, 2- 

 celled. Column long. Germen sessile, twisted. 



