Systematik und Pflanisengeograpliie. ' 225 



** Petals free or joined only at the very base. 

 * Sepals united in a distiuct tube above tlie cyathiform 

 apex of the ovary. 



1) Infloresceuce capitate. 



4. Ci'yjptanthus Otto et Dietr. Capitulum central. Petals 

 white, spreading widely. Leaves sessile. — Brazil , Guiana. 

 12 Arten. 



5. Distec/iiuthns Lemaire. Capitulum lateral. Petals yellow 

 spreading widely. Leaves petioled. — Guiana. 1 Art. 



6. Ortgiesia Regel. Capitulum or spike central. Petal blade 

 small. Leaves sessile. Fruit small. — Uruguay and South 

 Brazil. 2 Arten. 



7. Ochagaria Philippi. Capitulum central. Petal blade small. 

 Leaves rigid, lanceolate. Fruit small, compressed. — Juan 

 Fernandez. 1 Art. 



2) Inflorescense a central panicle or spike. 



8. Fernseea Baker. Petals little longer than the sepals. 

 Stigmas long, twisted. Leaves ensitorm. — Central Brazil, 



1 Art. 



9. Roiinebergia E. Morren et Andre. Petals much longer than 

 the sepals, spreading only at the tip. Leaves petioled, oblong 

 without spines. — New Granada. 1 Art. 



10. Portea K. Koch. Petals much longer than the mucronate 

 sepals, spreading widely. Stigmas long, twisted. Leaves 

 lorate or ensiform, spine-edged. — Brazil. 3 Arten. 



*"=' Sepals free quite or nearly to the cyathiform apex 

 of the ovary. 

 ^ Stigmas short, not twisted. 



11. Ananas Adans. Infloresceuce terminal on a short peduncle; 

 strobiliform. Fruits concrete with the bracts into a large fleshy 



syncarpiura. — Trough tvopical Amerika, 3 Arten. 



12. Acantliostacliys Klotzsch. Inflorescence spicate, strobiliform, 

 lateral on a long stem fruits not concrete. - — Central Brazil, 



2 Arten. 



13. Broinelia L. e. p. Inflorescence a dense panicle. Leaves 

 numcrous, ensiform. fruits large, pulpy distinct. — Trough 

 tropical America. (J Arten. 



14. EJiodostachys Phil. Inflorescence a central capitulum. Fruits 

 large, pulpy, distinct. Leaves numerous, ensiform. — Sub- 

 teraperate Chili and Argentinia. 7 Ax'ten. 



15. Araeococcns Brong. Inflorescence a large panicle. Leaves 

 few, lorate. Berry the rize of a small pea. — Guiana and 

 Amazon Vallev. 1 Ai't. 



** Stigmas long, twisted. 



16. Sh7'eptocalyx Beer. Inflorescence panicled. Sepals mucronate, 

 much twisted. Petals mach twisted. Petals much longer 

 than the sepals, not scaled at the base. Brazil and Guiana. 

 8 Arten. 



17. Aechmen Ruiz et Pavon. Inflorescence panicled or spicate 

 Sepals and flower bracts usually coriaceous and mucronate, 



BotaD. Centralbl. Bd. XLI. 1890. 16 



