88 ARKIV FOR BOTANIK. BAND 13. N:0 15. 



Pappi setae interiores numero 30, persistentes, tenues, 

 filiformes, albida3, exterioribus subfiliformibus, distinctis circ. 

 5-plo longiores. Corolla fere 6 mm longa, tubo glabro, sensim 

 dilatato, long. 2 / 3 corollae, limbi laciniis dorso plus minusve 

 pilosis, pilis longis, erecto-appressis. Antherae 2 mm longae, 

 ligula 1 / 3 1 / i long, antherae, auriculis brevibus, obtusis. 



Hab. in Tobago: prope Frenchfield in silv. mont. juxta 

 Hope River, alt. 600 m, solo argillaceo, 26. 10. 89, Eggers 

 n. 5615 (K, KU, P); in collibus ad Bacolet, 19. 11. 89, Eggers 

 n. 5885 b (KU); Kings bay, alt. 60 m, 26. 4. 96, Seitz n. 47 

 (KU); Spring Road prope Scarborough, 12. 3. 09, Broadway 

 n. 3080 (KU). Trinidad: Cedros, ad ripam maris, 14. 1. 08, 

 Broadway n. 2168 (KU, S). Margarita: El Valle, 20. 7. 01, 

 Miller et Johnston n. 134 (KU); ibidem, 30. 7. 01, Miller 

 et Johnston n. 133 (KU); Juan Griego trail, 2. 6. 03, John- 

 ston n. 323 (KU). Insuper in America austral! a Nicaragua 

 usque ad Uruguay divulgata. 



A variable, though always easily recognized, species, 

 abundantly represented in all herbaria. The West Indian spe- 

 cimens agree throughout with South American ones. The syno- 

 nyms cited all belong to South American specimens, and 

 should be discussed in a work on the Vernoniae of the 

 corresponding regions. 



Subsect. Pallescentes. 



Suffrutex erectus. Folia membranacea, elliptica, basi longe 

 attenuata, apice longe acuminata, glabra, margine remote dentata. 

 Inflorescentia cymoso-scorpioidea, cymis elongatis, sparse dicJio- 

 tome ramosis, calathidiis parvulis, sessilibus, remotis; bracteis 

 nullis. Involucrum infundibuliforme, squamis pauciseriatis, 

 acutiusculis, extimis patulis, interioribus erectis. Beceptaculum 

 subalveolatum, subnudum. Pappi setce interiores persistentes, 

 numero 50, tenues, filiformes, brunnem, quam exteriores valde 

 indistinctce, incequilongce, filiformes vulgo 8-plo longiores. Co- 

 rolla 5 mm longa, glabra, tubo gracili, cylindrico, in limbum su- 

 bito abeunte, long. 3 /o corolloe, limbi laciniis patentibus, dorso 

 apice papulosis. Antherce 1,5 mm longce, ligula long. l f 6 antherce, 

 auricidis obtusis. Achcenium tenuissime pubescens. 



This subsection includes only one species from St. Vincent. 

 It is distinguished from other West Indian subsections by its 



