X KEY TO THE GENEEA. 



12. AcANTHosTACHYs. — InflorescencG spicate, strobiliform, lateral 

 on a long stem. Fruits not concrete. — Central Brazil. 



13. Bromelia. — Inflorescence a dense panicle. Leaves numerous, 

 ensiform. Fruits large, pulpy, distinct. — Through Tropical America. 



14. Rhodostachys. — Inflorescence a central capitulum. Fruits 

 large, pulpy, distinct. Leaves numerous, ensiform. — Subtemperate 

 Chili d' Argentaria. 



15. Ar/eococcus. — Inflorescence a lax panicle. Leaves few, 

 lorate. Berry the size of a small pea. — Guiana d Amazon Y alley , 



"^^ Stigmas long, twisted. 



16. Streptocalyx. — Inflorescence panicled. Sepals mucronate, 

 much twisted. Petals much longer than the sepals, not scaled at 

 the base. — Brazil d Guiana. 



17. -^chmea. — Inflorescence panicled or spicate. Sepals and 

 flower-bracts usually coriaceous and mucronate. Petals usually 

 not much longer than the sepals, scaled at the base. — Through 

 Tropical America. 



18. Billbergia. — Inflorescence panicled or spicate. Sepals and 

 flower-bracts not mucronate. Petals much longer than the sepals, 

 scaled at the base, with filaments attached to their base. — Trojncal 

 South America. 



19. Quesnelia. — Inflorescence spicate, usually strobiliform. 

 Sepals obtuse. Petals twice as long as the sepals, with stamens 

 attached half-way up. — Brazil d Guiana. 



Tribe 11. PiTCAiRNiEiE. — Fruit a 3-valved capsule. Seeds not 

 furnished with a funiculus that splits up into fine threads. 

 Leaves with or without prickles. 



* Capsule free only near the tip, 



20. Brocchinia. — Petals not longer than the sepals. Leaves 

 lorate, glabrous, entire. — Guiana d Brazil. 



21. Bakeria. — Petals much longer than the sepals. Leaves 

 ensiform, acuminate, lepidote. — Columbia. 



*^ 



Capsule free J except near the base. 



22. PiTCAiRNiA. — Petals much longer than the sepals. Capsule 

 septicidally 3-valved. — Throughout Tropical America, 



^'^^^^ Capsule entirely superior. 



23. Puya. — Capsule loculicidally 3-valved. Style long, entire. — 

 Chili d Andes of Peru d Columbia. 



Capsule septicidally 3-valved. Styles short. 



24. CoTTENDORFiA. — Flowcis hermaphrodite. Leaves long, thin, 

 entire. — Brazil d Argentaria. 



