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Beiselia mexicana
was discovered by Karl-Werner Beisel (owner of German
Kakteenland) in 1982
in a remote area of Mexico, and its position in the family was not
immediately clear. A thorough study by Forman considered many
characters and could only tentatively conclude that it should belong
in Bursereae. The gross morphology suggested affinities with
Bursereae, pollen indicated affinities with Canarieae, and many
anatomical characters indicated closer agreement with Bursereae and
Protieae than Canarieae. The main basis for its final grouping was
the emphasis given to fruit characters, which showed similarities to
Boswellia and Triomma fruits. B. m. has simple
cotyledons; molecular studies suggest that it is sister to the rest
of the family (e.g. Clarkson 2002). This has considerable
implications for character evolution, including cotyledon
morphology; Beiselia also has probably derived features, like it
gyneocium with its 9-12 carpels.
Kind of hard to find
info on. If you can add any, please E-m@il.me
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