G2 MB. G. BENTHAM ON TEIINSTBCEMTACEJ2. 



4. C. glabrata, Mart. Nov. Gen. et Sp. i. p. 105, t. 65. 



Hub. North Brazil. A single specimen of Mr. Spruce's from Caripi 

 agrees very well with Martius's figure and description ; the leaves are 

 much broader in proportion to the length than in C. grandifolia, the 

 panicle more lax, the flower larger. 



5. C. racemosa, Camb. Mem. Ternstr. et Gutt. p. 47. 



Hub. Cayenne, Richard. I have seen no specimen precisely answering 

 to Cambessedes' description. 



6. C. tereticaulis, Tul. Ann. Sc.Nat. Par. ser. 3. viii. p. 341. 

 blab. British Guiana, Rob. Schomburgk, 2nd coll. n. 682; Rich. Schom- 



burgk, n. 925. This agrees with the description of C. racemosa in 

 foliage, but not in inflorescence. It has also smaller flowers, and two 

 ovules in each cell. 



/. C. angustifolia, Aubl. PL Gui. i. p. 564, t .224. f. 4. — C. vari- 

 abilis, Camb. Mem. Ternstr. et Gutt. p. 48. 

 Hub. Cayenne, Martin. 



8. C. suaveolens, Planeh. MS. Foliis oblongis obtusissimis glabris 

 subtus glaucescentibus tenuiter penniveniis, paniculse tomentella; ramis 

 laxe cymiferis, alabastro ovoideo ovarioque tomentellis (capsula brevi). 

 — Arbor parva. Folia 2^-4-pollicaria. Inflorescentia C . fasciadata 

 nisi laxior, floribus paucioribus, multo majoribus. Alabastra ovoidea, 

 4 lin. longa. Flores albi, suaveolentes. 



Hah. British Guiana, Rob. Schomburgk. A few specimens only, gathered 

 in his last expedition to the southern frontier, and not generally dis- 

 tributed. 



y. C. fasciculata, Camb. Mem. Ternstr. et Gutt. p. 49. Foliis ovali- 

 bus oblongisve obtusis acuminatisve glaberrimis subtus glaucis, pani- 

 cula: tioribundse glabriuscula) ramis laxe cymiferis, alabastro subglo- 

 boso ovarioque tomentellis, capsula brevi. — Folia 2^-4 -pollicaria. 

 Alabastra 5 lin. diametro. 



Hab. Guiana and North Brazil. I am inclined to unite with this species 

 the C. densifolia, Mart. Nov. Gen. et Sp. i. p. 105 ; C. laxiflora, Benth. 

 in Hook. Loud. Journ. Bot. ii. p. 364, gathered by Rob. Schomburgk 

 on the Rio Quitaro, 1st coll. n. 583 ; and the three following numbers 

 of Mr. Spruce's collection : viz., n. 2016, distributed as C. laurlfolia, a 

 much branched tree, 20 to 30 feet high, abundant in the gapo of the 

 Rio Negro from Barcellos upwards, called bv the natives Tamacoari 

 do gapb ; n. 2515, distributed as C. myrciatfolia, sp. n., a tree some- 

 times 70 feet high in the gapo of the Rio Uaupes, an affluent of the 

 Rio Negro ; and n. 2580, distributed under the same name, a small 

 tree of 20 to 30 feet, called Tamacoari-mire in the " lingua geral." To 

 this Mr. Spruce appends the following memorandum : — 



" From a closely allied species with larger leaves, frequent on the Rio 

 Negro about Castanheiro and St. Isabel, but of which I have not seen 

 flowers or fruit, is extracted the celebrated balsam of Tamacoari, alluded 



