Anandakanda 2.9.25

2.9.25

caturviṃśatisomānāṃ lakṣma vyaktaṃ rasāyane /
<somavṛkṣa>
karoti somavṛkṣo'pi rasabandhavadhādikam //

The characteristic of the twenty-four somas has been clearly described in the section on rasāyana.
<Somavṛkṣa>
The somavṛkṣa also performs the fixation, killing, and other actions of mercury.