Nuphar luteum, Yellow Pond-lily.

Produces nervous weakness, with marked symptoms in the sexual sphere.
Male.--Complete absence of sexual desire; parts relaxed; penis retracted. Impotency, with involuntary emissions during stool, when urinating. Spermatorrhoea. Pain in testicles and penis.
Stool.--Entero-colitis. Yellow diarrhoea; worse in the morning. Diarrhoea during typhoid.
Relationship.--Compare: in sexual weakness; Agnus; Kali brom; Lycop; Selen; Yohimbin. In diarrhoea: Chelid; Gambog; Sulph,
Nymphea odorata.Sweet Water Lily-(early morning diarrhoea, backache); acrid leucorrhoea, offensive ulcers; bronchorrhoea; ulcerative sore throat.
Dose.--Tincture to sixth potency.

Boericke's Materia Medica, 1901, was written by William Boericke. Excerpt: The Tinctures.