-,iis 



Britton: Studies of West Indian plants 



Leaves cordate at the base; corolla 3-4 cm. 



long. 

 Leaves not cordate; corolla much smaller. 

 Leaves glabrous on both sides, cori- 

 aceous. 

 Peduncles short, 3-15 mm. long, 



1-2-flowered. 

 Peduncles long, 3-8 cm. long, few- 

 several-flowered. 

 Leaves thin, pubescent beneath, at least 

 on the veins. 

 Leaves appressed-silky beneath, 



long-acuminate at the apex. 

 Pubescence not silky; leaves obtuse 

 to acute or short-acuminate. 

 Fruit oblong. 

 Fruit subglobose. 



Leaves prominently reticu- 

 late-veined beneath. 

 Leaves setulose above. 

 Leaves not setulose above. 

 Leaves not prominently re- 

 ticulate-veined beneath. 

 1 1 Inflorescence several-many-flowered. 

 Leaves thick, scabrous above. 

 Leaves thin, smooth above. 

 C. Species known to me only from the description. 



16. G. calyplrala. 



17. G. monocarpa. 



18. G. V alenzuelana. 



19. G. calcicola. 



20. G. Lindeniana. 



21. G. brevinodis. 



22. G. inaequipes. 



23. G. elliptica. 



24. G. scabra. 



25. G. Combsii. 



26. G. retusa. 



1. Guettarda Echinodendron C. Wright; Sauvalle, Anales 

 Acad. Habana 6: 124. 1869 



Stenostomum microphylliim Griseb. Cat. PI. Cub. 133. 1866. 

 Not Guettarda micro phylla Bartl. 

 Type locality: Near San Marcos, western Cuba. 

 Distribution : Known only from the type locality. 



2. Guettarda Coxiana sp. nov. 



A shrub, 2.5 m. high, with short, slender, densely pubescent 

 twigs, the leaf-scars long-persistent. Stipules ovate, acuminate, 

 2-3 mm. long; leaves ovate or ovate-elliptic, 2 cm. long or less, 

 coriaceous, rigid, the apex acute and spinulose-tipped, the base 

 obtuse, the upper surface smooth, with indistinct venation, the 

 under surface very prominently reticulate-veined and densely 

 pubescent, the stout pubescent petiole 1-2 mm. long; peduncles 

 axillary, i-flowered or 2-flowered, pubescent, 2.5-3 mm. long; 

 bractlets subulate, 1 mm. long; calyx obconic, truncate, densely 

 puberulent, 2 mm. long; corolla yellowish, densely puberulent, 



