380 



Britton: Studies of West Indian plants 



None of the leaves spinulosc-dentate. 

 Involucral bracts tomentose. 

 Inner involucral bracts glabrous. 

 Involucre 2 cm. long or less. 

 Involucre 1.5-2 cm. long. 



Leaves or some of them 1.5-2 cm. long. 



Inner involucral bracts obtusish or short- 



pointed. 

 Inner involucral bracts acuminate. 

 Leaves 12 mm. long or less. 



Leaves strongly spinulose-dentate. 

 Leaves repand-denticulate. 

 Involucre 1.5 cm. long or less. 



Leaves 23 times as long as wide. 

 Leaves spinulose-denticulate. 



Leaves strongly reticulated beneath. 

 Leaves not reticulated beneath, or faintly 

 reticulated. 

 Achenes short-tomentose; leaves reticu- 

 late-veined above. 

 Achenes villous; leaves smooth above. 

 Leaves entire-margined. 

 Leaves not longer than wide, or but little longer. 

 Leaves obtuse or truncate at base. 

 Involucre 6 mm. long. 

 Involucre 10 mm. long. 

 Leaves cuneate at base. 



2. Involucral bracts recurved, or with recurved tips. 

 Involucral bracts arachnoid. 



Involucral bracts villous. 



3. Involucre known only in a young condition; leaves oblong, 



4 cm. long, 1.8 cm. wide, entire-margined or with a 

 tooth near the apex. 



6. A. Picardae. 



7. A. crassi folia. 



8. A. oligantha. 



9. A. bahamensis. 



10. A. calcicola. 



11. A. parvifolia. 



12. A. Wilsoni. 



13. A. intertexta. 



14. A. Shaferi. 



15. A. obtusifolia. 



16. A. microcephala. 



17. A. Rosei. 



18. A. Buchii. 



19. A. Northropiana. 



20. A. recurva. 



21. A. lomensis. 



i. Anastraphia ilicifolia D. Don, Trans. Linn. Soc. 16: 296. 



1830 



Gochnatia ilicifolia Less. Linnaea 5: 261. 1830 (attributed to 



Guiana doubtfully). 



Type locality: South America [in error]. 



Distribution: Limestone cliffs and river-gorges, provinces of 

 Matanzas and Havana, Cuba. A shrub 2-3 m. high, the leaves 

 shining above. 



A specimen in Kew Herbarium from rocks on the Rio Canimar, 

 Cuba, 1823, bears the label Staehelina ilicifolia Mutis., but that 

 species is a South American Gynoxys. 



