Mercurius Dulcis merc-d.

Scanty; bloody mucus, with bile, with constant desire.
Watery, green.
Dark green, with gripings in the bowels.

Clinical:
Frequently valuable in infantile diarrhœa, with constant desire, but without tenesmus, grass-green stools, excoriating, with offensive breath, salivation, swollen glands, etc.