46 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 126 



Mato Grosso: Corumba, Kuntze (NY, type) ; Hoehne in Rondon 3543 (R) ; 



Foster 104S (GH, US) ; 1064 (GH). 

 Also: Paraguay. 



7. Pitcairnia L'Herit. 



Pitcairnia L'Herit. Sert. Angl. 7. 1788, nomen conservandum. 

 Hepetis Sw. Prodr. 4, 56. 1788. 



Mexico and the West Indies to northern Argentina. One species 

 in Africa. 

 I. Flowers and pedicels stout; floral bracts large, ample; ovary almost wholly 



superior; leaves entire, petiolate, 6-8 cm. wide i. P. maidifolia 



I. Flowers slender and usually the pedicels also (pedicels almost lacking in 

 P. anomala) ; floral bracts usually small or narrow. 

 2. Fruit dehiscent; ovary at least half superior; inflorescence simple or 

 compound. 

 3. Petals naked. 

 4. Inflorescence amply paniculate; leaf-blades narrowly triangular, not 

 narrowed at the base. 

 5. Flowers deflexed-secund ; sepals 30-37 mm. long 2. P. nuda 



5. Flowers stiffly spreading in all directions; sepals 15-20 mm. long. 



3. P. patentiflora 

 4. Inflorescence simple; leaf -blades often narrowed at the base. 



6. Blades of all the leaves persistent. 



7. Leaves with a distinct slender petiole 4. P. lancifolia 



7. Leaves not petiolate, though often somewhat narrowed at the base. 

 8. Pedicels 3-5 mm. long, stout, sulcate ; petals only a little longer 



than the sepals; flowers spreading 5. P. encholirioides 



8. Pedicels 8-30 mm. long, slender, even; petals two to three 

 times as long as the sepals. 

 9. Petals zygomorphic at least by position, not spirally recurving 

 at anthesis. (Fig. 8.) 

 ID. Base of the rosette not thickened; leaves not more than 



15 cm. long 6. P. beycalema 



10. Base of the rosette bulbous-thickened ; leaves usually much 

 more than 15 cm. long. 



II. Sepals distinctly carinate 7. P. carinata 



II. Sepals ecarinate. (Fig. 8.) 8. P. flammea 



9. Petals regular, spirally recurving at anthesis. (Fig. 9.) 

 12. Rhachis of the inflorescence glabrous; sepals 15-18 mm. 



long ; petals white to yellow 9. P. albiHos 



12. Rhachis of the inflorescence furfuraceous ; sepals 19-22 



mm. long ; petals red 10. P. staminea 



6. Blades of the larger leaves deciduous along a straight transverse line. 

 13. Leaves serrate on the reduced blades and on the persistent re- 

 mainder of the large blades i r. P. glaziovii 



13. Leaves all entire 12. P. decidua 



3. Petals each bearing a single scale at base. 



14. Leaf-blades narrow and elongate, never more than 22 mm. wide. 

 15. Inflorescence compound. 



