Strychnos lucida

Strychnos lucida R.Br. (leaves) Strychnaceae Brucine (59) Brucine (V-oxide (59) /3-Colubrine (59) Normacusine B (59) Pseudobrucine (59) Pseudostrychnine (59) Strychnine (59)... 

Strychnos lucida and Strychnos ignatii Berg, have been investigated for their alkaloid contents. Alkaloids isolated from the leaves of S. lucida include strychnine, brucine, pseudobrucine, normacusine B, /3-colubrine, pseudostrychnine, and brucine A-oxide. The alkaloids in the branches (without leaves) are the same as in the leaves except for the absence of pseudostrychnine and the addition of diaboline. In the root bark of this... 

Of the four species of Strychnos found in Australia, S. lucida R. Br. was found to contain strychnine (0.1%) and brucine (1.3%) as well as a further 0.5% of unresolved alkaloids (213). An alkaloid, lucidine-S, has been reported from the same source (214), but may be present only in the young plants, as its presence could not be confirmed in the older samples (213). The leaves of S. psilosperma F. Muell. were claimed to contain strychnine, brucine, and strychnicine (214) a later investigation (213) did not confirm this, but resulted in the isolation of two new alkaloids, strychnospermine (0.9%) and spermostrychnine 10.5%). 

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