Schlumbergera

Schlumbergera bridgesii -

Reported to contain unspecified alkaloids.

Schlumbergera runcata -

Reported to contain unspecified alkaloids.

Selenicereus

Selenicereus pteranthus -

Contains: hordenine.

Solisia

Selenicereus pectinata -

Contains: hordenine, N-methyltyramine.

Stenocereus

A generally large tree-like, columnar Cactus reported to contain mescaline and sterols. Native from the Baha desert to Haiti depending on the species. Protect from frost, not cold tolerant.

Stenocereus beneckei -

Stenocereus eruca -

Contains: mescaline, 3-4-dimethoxyphenethylamine (.01%), 4-hydroxy-3-5-dimethoxyphenethylamine (.01%).

Stenocereus fricii -

Reported to contain unspecified alkaloids.

Stenocereus quercetaroensis -

Reported to contain unspecified alkaloids.

Stenocereus stellatus -

Stenocereus treleasei -

Contains: mescaline, 3-4-dimethoxyphenethylamine (.01%), 4-hydroxy-3-5-dimethoxyphenethylamine (.01%).

Stetsonia

Stetsonia coryne -

Strombocactus

Strombocactus disciformis -

 

Sulcorebutia

Sulcorebutia kruegeri -

Reported to contain unspecified alkaloids.