E. L, EKMAN, WEST INDIAN VERNONI^. 39 



2. Inflorescence of capitate clusters. 



a. Pappus brown. — Jamaica. V. pluvialis. 



b. Pappus white. 



a. Leaves densely tomentose beneath. A single 

 terminal cluster of heads. — Cuba. 



V. yunquensis. 

 ß. Leaves finely pubescent beneath. Clusters of 

 heads both terminal and axillar. — Cuba. 



V. segregata. 



1. The allies of Vernonia argyropappa Buek. 



Vernoiiia Trinitatis Ekman n. sp. 



Suffrutex elatus, certe metralis et ultra. Caulis (cujus 

 pars superior tantum adest) erectus, inferne lignosus, diam. 

 4,5 mm, simplex, superne ramosus, teres, striatus, inferne 

 subglaber, cortice pallide avellaneo, superne densiuscule pu- 

 bescens, inferne nudus, apice foliatus. Folia alterna, paten- 

 tia, subsessilia vel brevissime petiolata, petiolo ad 2 mm 

 longo, tomentello, complanato; laminae anguste ovatse, ad 

 13 cm longse, 6 cm latse, infra medium latissimse, basi late 

 rotundatse, apice longe acuminato-acutissimse, membrana- 

 cese, planae, integrse vel remote denticulatse, supra olivaceo- 

 -virides, subglabrse, sublseves, subtus pube moUi, subappressa, 

 subvelutina, rufo-grisea instructse, costa nervisque utriusque 

 lateris numero 8, supra impressis, subtus exculptis, nervulis 

 obsoletis. Inflorescentia cymoso-scorpioidea, ampla, ambitu 

 obpyramidata, ad 3 dm longa, 2,5 dm lata, diffusa, cymis 

 elongatis, patulis, sursum arcuatis, simplicibus vel ramis 

 nonnuUis brevibus instructis, circ. 15-cephalis, calathidiis 

 inferioribus spatio ad 3,5 cm longo disjunctis, superioribus 

 magis approximatis, omnibus bracteis suffultis foliaceis, lis 

 multoties longioribus. Calathidia axillaria, sessilia, solitaria 

 vel ssepe geminata, circ. 25-flora. Involucrum infundi- 

 buliformi-campanulatum, 8 mm altum et totidem fere latum, 

 squamis circ. 5-seriatis, extimis ceteris dimidio brevioribus, 

 lineari-subulatis, subpungentibus, patulis, apice subrecurvis, 

 intermediis inferne anguste oblongis, infra medium in subu- 

 1am longam, patulam, subrecurvam abeuntibus, pulchre ca- 

 rinatis, intimis lineari-ligulatis, breviter acutatis, omnibus 



