410 CONTRIBUTIONS TOWARDS A 
new, may belong to already described ones. This point, however, 
can only be determined by those who have access to authentic 
specimens. The present species seems more nearly related to 
the Asiatic than the American section, and but for its much 
broader leaves agrees in many respects with E. paludosa, DC. 
1976. E. rivularis ; caule hispido, foliis breviter petiolatis longe 
lineari-lanceolatis apicem versus attenuatis basi obtusis vix 
auriculatis distanter subdenticulatis supra scabridis subtus ad 
nervos piloso-pubescentibus membranaceis, capitulis ad axillas 
solitariis sessilibus, involueri squamis exterioribus late ovatis 
acuminatis reticulatis glabriusculis, paleis radii obovatis 4—5- 
dentatis, dentibus acuminatis pilosis. 
Has. In slow running streams near Barra do Jardim, Province 
of Ceara. Dec. 1838. 
Herba perennis. Caules basi ad nodos radicantes, demum 
adscendentes, bipedales, ramosi." Folia 4 poll. longa, 6-9 lin. 
lata. Involucri squame exteriores 5 lin. longæ, 44 lin. late. 
1053. E. integrifolia; caule glabro, foliis sessilibus lineari-lanceo- 
latis acuminatis basi subauriculatis margine revolutis integer- 
rimis supra scabridis subtus pubescentibus membranaceis, capi- 
tulis ad axillas solitariis sessilibus, involucri squamis exterio- 
ribus rotundatis obtusis reticulatis glabris, paleis radii inæqua- 
liter 3-dentatis acutis pilosis. 
Has. In saline marshes in the Island of Itamarica, Province of 
Pernambuco. Dec. 1837. 
Herba perennis. Caules basi ad nodos radicantes, demum 
adscendentes, ad apicem ramosi, bipedales. Folia 21-3 poll. 
longa, 3—4 lin. lata. Involucri squamæ exteriores 3 lin. longe, 
3 Im. circiter late. 
The stems and leaves of this apparently very distinct species 
become black when dry. 
PoroPHYLLUM, Vaill. 
4259. P. (Euporophyllum) angustissimum ; suffruticosum glabrum ` 
dichotomo-ramosum, foliis alternis linearibus integerrimis 
acutis eglandulosis, involucri cylindriei squamis linearibus 
acutis, achzeniis scabris. 
