KEY TO THE GENERA. XI 



25. DycKiA. — Flowers hermaphrodite. Leaves thick, rigid, 

 margined with hooked pungent prickles. — Brazil, Uruguay , Argent- 

 aria, 



26. Hechtu. — Flowers subdioicous. Leaves as in Dyckia, — 

 Mexico f Texas. 



Tribe III. Tillandsie^. — Frait always a 3-valved entirely superior 

 capsule. Seeds furnished with a long funiculus that breaks up 

 into filiform threads. Leaves always without marginal prickles. 



* Corolla gamopetalous. 



27. SoDiROA. — Calyx with a long tube. Leaves spaced out. — 

 Ecuador, Columbia, 



28. Caraguata. — Calyx with a short tube. Leaves rosulate. 

 Anthers free. — West Indies, Guiana, Andes, 



29. Guzmania. — Calyx with a short tube. Leaves rosulate. 

 Anthers syngenesious. — Tropical America, 



** Corolla poly petalous, 



30. Catopsis. — Appendage of the seeds large and flattened ; 

 funiculus short. — Tropical America, 



31. TiLLANDsiA. — Appendage of the seeds a small mucro ; 

 funiculus long. — Tropical d Subtropical America. 



