(Received 18 June 1975; accepted 4 August 1975)
Published Online: April
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Since 1972 there have been numerous cases in North America in which the applicability of legislation governing marihuana has been challenged on the basis of a superficially meritorious argument. In brief, the defense has been advanced that there are several species of the marihuana plant, and since most legislation refers only to the species Cannabis sativa, the other species and marihuana obtained from such other species are not proscribed. This defense has been used so extensively that it has become a textbook exemplar . Recent articles supporting its validity [2–4] have exacerbated the situation.
Research scientist, Biosystematics Research Institute, Ottawa,
Stock #: JFS10492J