Lianas as Structural Parasites: The Gumbo limbo Bursera Simaruba Example
The Fecundity of female Bursera simaruba (L.) Sarg. (Burseraceae) trees was found to be negatively correlated with their degree of coverage by lianas in the deciduous forests of Santa Rosa National Park, Guanacaste Province, Costa Rica. Experimental reduction of the liana of heavily overgrown trees resulted in an increase in fruit production. The finding that lianas are detrimental to the fecundity of their hosts, coupled with the fact that lianas require physical contact with trees as a consequence of their growth form, suggests that lianas should be viewed as structural parasites of the trees that support them.
More information: https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.2307/1938806
Leaf and Bark Essential Oil Compositions of Bursera simaruba from Monteverde, Costa Rica
The leaf and bark essential oils of Gumbo limbo Bursera simaruba (L.) Sarg. from Monteverde, Costa Rica were obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. The leaf oil was dominated by the monoterpene o-cymene (65.2%), while the bark oil had α-phellandrene (29.1%), (E)-caryophyllene (19.3%), o-cymene (13.1%), and α-thujene (11.9%) as major components. The essential oil compositions of B. simaruba from Monteverde, Costa Rica, were markedly different from those previously reported from Jamaica or Guadeloupe.
More information: http://www.essencejournal.com/pdf/2014/vol1issue3/PartA/10-969.pdf