§ 1 . Catasetum. Lip hooded, convex, placed at the back 

 of the flower. 



l.C. trident atum. Hooker. 



Varieties. — C. macrocarpum, Rich. — Claveringi, Lindl. — floribun- 

 dum, Hooker. 



Monster. Monachanthus viridis, Lindl. 

 2. C. maculatum, Kunth. 



Variety.— C. integerrimum, Hooker. 

 3 C. Hookeri, Lindl. 



4. C. semiapertum, Hooker. 



5. C. purum, Nees. 



C. C. luridum, Lindl. (Anguloa lurida, Link.) 



7 . C. longifolium. Lindl. 



8. C. discolor. (Monachanthus discolor, Lindl.) 



Variety. — Monachanthus Bushnani, Hooker. 



9. C. roseo-album, Lindl. (Monachanthus roseo-albus, Hooker.} Probably 



a variety of the last. 



10. C. atratum, Lindl. 



h 2. Myanthus. Lip flat, placed in front of the flower. 



11. C. cristatura, Lindl. 



Varieties. — C. spinosum, Lindl. (Myanthus spinosus, Hooker.) C. 

 proboscideum, Lindl. — C. barbatum, Lindl. 



12. C. cornutum, Lindl: 



13. C. lanciferum, Lindl. 



14. C. deltoideum, Lindl. (Myanthus deltoideus, Lindl) 



15. C. trifidum, Hooker. (Myanthus cernuus, Lindl.) 



16. C. saccatuni, Lindl. 



17. C. laminatum, Lindl. 

 lb. C. Russellianum, Hooker. 



19. C. Trulla, Lindl. 



20. C. poriferum, Lindl. 



21. C. callosum, Lindl. 



