E. L. EKMAN, WEST INDIAN VERNONIiE. 33 



X Rami tenuiter puberuli. Cymae inflore- 

 scentiam distinctam formantes. Involu- 

 crum campanulatum, aut cylindricnm. 

 * Folia membranacea, elliptica, acumi- 

 nata, breviter sed distincte petiolata. 

 Inflorescentia satis ampla. Involu- 

 crum breviter campanulatum, squa- 

 mis 4 — 5-seriatis, satis brevibus, vix 

 carinatis. Corollas tubus long, ^s co- 

 rollae. 



aa. Calathidia in cymis laxe disposita. 

 Involucrum circ. 5 mm longum. 

 CoroUse 6 — 6,5 mm longse tubus 

 gracilis superne in limbum subito 

 abiens. V. acuminata Less. 



ßß. Calathidia in cymis satis approxi- 

 mata. Involucrum circ. 4 mm 

 longum. CoroUse 5 mm longee tu- 

 bus amplior superne in limbum 

 sensim abiens. 



V. expansa Gleason. 

 ** Folia pergamacea, acuta, subsessilia, 

 obsolete denticulata. Inflorescentia val- 

 de congesta, Involucrum elongatum, 

 cylindricum, squamis 6 — 7-seriatis, e- 

 longatis, dorso carinatis. CoroUse tu- 

 bus long, vix 72 coroUse. 



V. pluvialis Gleason. 

 X X Rami juveniles dense tomentosi. Cymse 

 elongatse, flexuosse, inflorescentiam di- 

 stinctam vix formantes. Involucrum in- 

 fundibuliforme, basi cuneatum, squamis 

 multiseriatis, exterioribus valde imbri- 

 catis, interioribus fructus tempore elon- 

 gatis, patentissimis. F. rigida Sw. 



ß. Folia discoloria. — Species insularum Hispan- 

 iola et Cuba incolse. 

 t Folia plana. 



X Folia subtus laxius floccoso-tomentosa. 

 Cymse elongatse, ssepe cauliformes. — 

 Hispaniola. F. fruticosa (L.) Sw. 



Arkiv för botanik. Band 13. iV;o 15. 3 



