358 CXXII. OECKIDACEiE. 



Labcllum anticous. 

 Petals entire. 



Sepals membranous, connate at 



back ; petals fleshy, acuminate . 14. MoNOTEiS. 

 Sepals herbaceous, converging ; 

 petals membranous, linear or 



lanceolate 17. Teyphia. 



Petals toothed, fleshy, converging . 18. Bucculina. 

 ** Labellum boat-shaped at base (not saccate), 



3-toothed at apex 32. Beaciiycoeythis. 



*** Labellum 2-spurred or 2-saccate at base, hel- 

 met- or funnel-shaped. 

 Labellum helmet-shaped ; stigma 2-lipped, 

 the upper lip very large. 

 Sepals 3, separate ; petals 2, similar . .22. Satyeium. 

 Sepals connate, in a 3-toothed lip ; pe- 

 tals 24. AviCEPS. 



Labellum funnel-shaped ; stigma minute, 



truncate 23. Satyeidium. 



**** Labellum spurless, rarely subconcave. 

 (1) Labellum free (not attached to the face of 

 column). 

 Labellum posticous. 



Sepals spreading; labellum entire (like 



the petals) 13. Pachites. 



Sepals converging ; labellum 3-fid . . 19. Stenoglottis. 

 Labelliun anticous. 



Back sepal galeate, spurred or saccate at 



back. 



Polluiia attached to a smgle gland . . 27. Monadenia. 



PoUinia attached to 2 separate glands. 



A 2-lobed appendix placed between 



the anther and rostellum ; flowers 



as in Dlsa 31. Heeschelia. 



No appendix between anther and 

 rostellum. 



Petals entire 25. Disa. 



Petals 2-lobed or twisted, narrow 28. ScHizoDruM. 

 Back sepal spurless, either somewhat 

 hood-like or quite flat. 

 Petals sessile, separate from the sepals. 

 Sepals valvate in bud ; labellum li- 

 near or fiUform .29. Penthea. 



Sepals imbricate in bud; labellum 



truncate, small, fleshy . . . .30. Foeficaeia. 

 Petals clawed, hood-shaped, attached 

 by the base of their claws to the 

 separate sepals. 

 Sepals entire ; petals and labellum 



fimbriate 33. HUTTON^A. 



Sepals, petals and labellum all fim- 

 briate 34. Hallackia. 



(2) Labellum attached to the face of the column. 

 Back sepal spurred ; labellum minute, fili- 

 form (perianth of i>wa) 26. Beownleea. 



