60 ORD. XXIX. Hesperidee. MELALEUCA CAJUPUTI. 
camphor and oil of turpentine, but gradually becomes more fragrant. It is 
transparent, and of a beautiful bluish green colour; when dropped on the 
surface of water, it diffuses itself over it, and very rapidly and completely 
evaporates : this is said to be a test of its purity.* When ignited, it burns 
rapidly, without leaving any residue. When pure, it is entirely soluble in 
alcohol, and partly so in water. Its green colour is said by some to be de- 
rived from the copper vessels in which it is imported, but by others this is 
denied ; in confirmation of which, we are told by Mr. Brande, that none of 
the samples which he examined contained copper. 
For the Medical Properties and Uses of this tree, we refer our readers to 
Vol. III. page 547 of this work. 3 
* Cajuputi oil is said to be frequently adulterated with a mixture of fine oil and oil 
of turpentine. 
ORD. XXXII. GRUINALES. 
QUASSIA EXCELSA. LOFTY, or ASH-LEAVED QUASSIA. 
SYNONYMA. Quassia excelsa. Swartz in Stockh. Trans. For 1788, p. 302, 
#.8; Prodr. Ind. Oceid. v. 2,742; Willd. Sp. Pl. v. 2. p- 569. Simaruba 
excelsa. De Cand. in Ann. du Mus. v. 17, p. 424; Prodr.v.\. p. 733; 
Unchte Quassie, Nom. Triv. Willd. Quassia Polygama. Trans. Roy. 
Soc. Edin. v. 3. p. 205. t.6. : 
Class, Decandria. Ord. Monogynia. 
Nat. Ord. Gruinales, Linn. Magnoliz, Juss. Simarubex, Rich. De Cand. 
Gen. Char. Calyx, fiveleaved. Petals, five. Nectary, composed of five 
seales. Drupes, five, distant, bivalved, placed on a fleshy receptacle. 
Spec. Char. Flowers, polygamous. Stamens, five. 
: Leaves, pinnate. 
Leaflets, opposite, petioled ; common stalk naked. 
