collected by Mr. Schomburgk in British Guiana. 109 



E. Salzmannianum and others of the same habit, pink. Leaves very- 

 similar to those of the Dodoncea viscosa. Differs from E. dodonea- 

 folium by the pubescent achsenia, &c. 



10. Mikania racemulosa, sp. n., fruticosa, scandens, ramis teretibus peti- 

 olisque pube fusca scabridis, foliis petiolatis late ovatis acuminatis integerri- 

 mis, basi obtusis, supra scabris, subtus subvelutino-pubescentibus irregulariter 

 penninerviis, ramorum floralium parvis triplinerviis, panicula composita, 

 raccmis oppositis elongatis terminali longiore, pedicellis bracteola duplo lon- 

 gioribus capitulo subsequilongis, involucri squamis oblongo-linearibus apice 

 fimbriates, achaenio glanduloso. — British Guiana. Schomburgk, n. 480. 



Leaves 4 to 5 inches long, about 3 broad. Pedicels numerous, 

 divaricate, about 2 lines long. Flowers white. This species, very- 

 well marked amongst the spiciform ones by the flower heads being 

 all pedicellate along the axis, is probably allied in this respect to the 

 M. Houstonii, which is, however, described as entirely glabrous. 



17. Mikania Hookeriana. DC. Prod. 5. p. 195. — British Guiana. Schom- 

 burgk, n. 479. Flowers white. 



18. Mikania denticulata. DC. Prod. 5. p. 198. — British Guiana. Schom- 

 burgk, n.321. 



19. Mikania convolvulacea. DC. Prod. 5. p. 199. — British Guiana. Schom- 

 burgk, n. 93. 



20. Mikania Parkeriana. DC. Prod. 5. p. 199. — British Guiana. Schom- 

 burgk, n. 310. 



Tribe Asteroide^e. 



21. Baccharis leptocephala. DC. Prod. 5. p. 413. — British Guiana. 

 Schomburgk, n. 129. 



22. Eclipta erecta, Linn. DC. Prod. 5. p. 490. — British Guiana. Schom- 

 burgk, n.331. 



Tribe Senecionide.<e. 



23. Riencourtia glomerata, Cass. DC. Prod. 5. p. 504. — French Guiana. 

 Herb. Par. n. 3. 



24. Latreillea glabrata, sp. n., caulibus glabris subramosis, foliis lanceo- 

 latis obscure dentatis integerrimisque, petiolis brevissimis supremis subci- 

 liatis, involucri squamis latissime obovatis paleisque receptaculi obtusis bre- 

 vissime fimbriatis glabris. — Dry Savannahs, British Guiana. Schomburgk, 

 n. 247. 



Herba pcrennis. Rhizoma lignosum. Caules pedales, erecti, simplices vel 

 opposite ramosi. Folia 3 — 4 pollices longa, 6 — 12 lineas lata, sub 5-nervia 

 et reticulato-venosa, glaberrima. Capitula 3 — 7, ad apices caulium et ramo- 

 rum umbellato-capitata, supra foliorum par ultimum subsessilia, ovoidea, 

 lupuliformia, in vivo nivea, in sicco fusca. Squamae involucri veri striata?, 

 demum achoenia involventes. Palea? squamis similes, gradatim minores. 

 Corollee radii brevissimse, obscure 3 — 5-fidse, supra profundius fissre, pilis 

 paucissimis articulatis ; styli rami exserti, glabri, crassi, acuti. Flores 

 disci tubulosi, antheris concretis ecaudatis, stylo simplici hispido. — Varietas 

 in Brasilia occurrit simillima nisi folia breviora. 



