Mammillaria longimamma is a species of cactus from Hidalgo and Querétaro, Mexico., p. 428
Phytochemistry Contains longimammidine, longimammine, longimammamine, longimammatine, longimammosine, normacromerine and synephrine; undoubtedly, all these are phenethylamines (cyclised, i.e. tetrahydroisoquinoline alkaloids and beta-substituted phenethylamines; however, this species is not known to have any hallucinogenic effects on humans).
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