Toddalia aculeata, Pers. (T. asiatica, L. [Kurz], family Rutaceae) is a shrub that grows wild in the Nilgiri country (India), where it is known as "wild orange tree". All parts of the plant have a pungent, aromatic taste. The root, which was known as early as the 17th century as Radix Indica Lopeziania2), is known as Malakarunnay by the natives and is used by them as a remedy in stomach troubles. The root bark contains a volatile oil the odor of which is described by Schnitzer3) as cinnamon- and balm-like.
The oil from the leaves has been distilled by D. Hooper4). It is limpid and has a pleasant odor reminding of both verbena and basil. It contains considerable amounts of citronellal and an alcoholic constituent which boils above 200°.
1) Journ. chem. Soc. 99 (1911), 1996.
2) Fluckiger and Hanbury, Pharmacographia, p. 111.
3) Wittstein's Vierteljahrsschrift f. prakt. Pharmacie 11 (1862), 1.
4) .Report of Schimmel & Co. April 1893, 73.
Upon the distillation of the leaves, Brooks1) obtained an oil with the following constants: d30/30o059; nD30o 1,4620. When cooled, 18 p. c. of a substance separated which had an odor reminding of camphor, was very decomposable and when re-crystallized from petroleum ether melted at 96,5 to 97°. Fractions 195 to 200° contained linalool which was characterized by its oxidation to citral.