64 ARKIV FÖR BOTANIK. BAND 13. NIO 15. 



Vernonia expansa Gleason. 



Tabula nostra III, fig. 4 (inflorescentia). 

 Vernonia expanaa Gleason, 1906 b, p. 186; 1913, p. 311. 



Pappi setae interiores numero 30, ceteris ut in praeced. 



«iCorolla 5 mm longa, tube satis ample, glabro, in limbum sensim 



abeunte, cet. praeced.; limbi laciniis firmioribus. Antherae 



1,8 mm longae, ligula sensim attenuata, auriculis plane obtusis. 



Hab. in Jamaica: prope Iroy, alt. 600 m, 6. 12. 04, 

 Harris n. 8796 (KU, dupl. orig. spec). 



This species is very closely allied to V. acuminata Less., 

 and may prove to be only a variety of this. The distinction 

 given by Gleason as to the different shape of the leaves 

 scarcely appears sufficient to warrant the separation. There 

 are, in fact, specimens of genuine F. acuminata Less., Hansen 

 in 1897, having the leaves as shortly attenuate at the base as 

 those of V. expansa. However, V. expansa is characterized 

 rather well by its small, greenish, somewhat crowded heads, 

 and by its small flowers with wide tube and firm clefts. The 

 material at hand is too scanty to give a reliable account of 

 the taxonomic status of the plant. 



Vernonia pluvialis Gleason. 



Tabula nostra III, fig. 8 (inflorescentia). 



Frutex fere metralis, diffusus, ramosus. Rami satis 

 crassi, inferne teretes, striati, superne angulati, subcom- 

 pressi, hornotini appresse pubescentes, pilis brevissimis, sor- 

 dide albidis; internodia ssepissime brevia. Folia patentia, 

 subsessilia vel brevissime petiolata, petiolo 1 — 2 mm longo, 

 tenuiter pubescente; laminae rhomboideo-ellipticae, 3,5 cm 

 longae, 1,6 cm latae, vel lanceolato-rhomboideae, 5,7 cm longae, 

 1,5 cm latae, apice acutae vel subacuminatae, basi attenuatae — 

 Totundatae, sat remote glanduloso-denticulatae, firmae, planae, 

 margine subrevolutae, olivaceo-virides, subtus pallidae, laeves, 

 utraque facie tenuissime puberulae, glanduloso-punctatae; costa 

 nervisque utriusque lateris numero 5 — 6, utraque facie ex- 

 sculptis, subtus magis perspicuis. Inflorescentia cymoso- 

 -scorpoidea, contracta, ovato-pyramidalis, ad 6 cm longa. 



