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. 



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

 olisqiie piibe fusca scabridis, foliis petiolatis late ovatis acuminatis integerri- 

 mis, basi obtusis, supra scabris, subtus subvelutino-piibescentibus irrcgulariter 

 penninerviis, ramonim floralium parvis trijilinerviis, panicula composita, 

 raccmis oppositis elongatis terminali longiore, pedicellis bracteola duplo lon- 

 gioribus capitulo subsequilongis, involucri squamis oblongo-linearibus apice 

 fimbriatis, acbuenio glanduloso. — British Guiana. Scboniburgk, 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 Guiaua. Schom- 

 burgk, n. 310. 



Tribe AsTEuoioEiE. 



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

 Schomburgk, n. 129. 



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

 burgk, n.331. 



Tribe SENEcioNiDEiE. 



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 latissirae obovatis paleisque receptaculi obtusis bre- 

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

 n. 247. 



Herba perennis. Rhizoma lignosum. Caules pedalcs, 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- 

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

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

 demum achaenia involventes. Paleae squamis similes, gradatim minores. 

 CoroUse radii brevissimffi, obscure 3 — S-fidse, supra profundius fissae, pilis 

 paucissimis articulatis ; styli rami exscrti, , glabri, crassi, acuti. Florcs 

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

 in Brasilia occurrit simillima nisi folia breviora. 



