sassafras lauraceae. magnoliids monocots current angiosperm phylogeny group tree for flowering...
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Sassafras
LAURACEAE
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magnoliids
monocotsCurrent Angiosperm Phylogeny Group Tree
for Flowering Plants2010
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LAURACEAE
current history of the order Laurales - APG website
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folded carpel portion
ascidiate base stamens
Lauraceae - flower development
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Ocotea lancifolia, Photo of W. Thomas 10597.
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Cineole from Laurus nobilis
Linalool from Aniba (Brazilian rosewood)
Safrole from Sassafras
Cinnamaldehyde, from Cinnamomum (cinnamon)
A cabinet of ethereal oils from the Lauraceae
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essential (ethereal) oils: more or less volatile and often aromatic substances made up of various kinds of terpenesTerpenes (terpenoids): usually hydrophilic compounds consisting of an isoprenoid skeleton, subdivided according to number of carbon atoms10 = mono15 = sesqui 20 = di
Isoprene (isoprenoid): a volatile unsaturated branched chain five-carbon hydrocarbon that is the basic unit of terpenes
Isoprene, C5 H8.
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monoterpenoids: with a base of C10 H16, they occur in essential oils and are made up of one or two isoprene rings or an open chain of isoprene units;
They are colorless, water-insoluble, volatile, with fragrant odor.
All of these are also found in the Lauraceae
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Sassafras
Beilschmiedia etc.
Gondwana genera
Persea - avocado
Lindera - spicebush
Laurus - bayleaf
Cinnamomum
Ocotea
boreotropicalmadrean-neotropical
austral
DNA: 17-20 ybp
worldwide
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Persea americana - the avocado
i - morning phasej - afternoon phase
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Persea borbonia - red bay
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Beilschmiedia
and the resplendant quetzal
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Ocotea-Nectandra
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Key Characters:Magnoliid syndromeGreen twigs, ascending
secondaries, leaves clusteredTiny flowers with 2–3 stamen
whorls and flap dehiscenceFruits with cupules
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http://www.flmnh.ufl.edu/soltislab/FGP_Education/Persea.html
Chanderbali, A.S, van der Werff, H., Renner, S.S. 2001. Phylogeny and historical biogeography of Lauraceae: Evidence from the chloroplast and nuclear genomes. Ann. Missouri Bot. Gard. 88: 104-134.
Gottlieb, O. R 1972. Chemosystematics of the Lauraceae. Phytochemistry, 11: 1537- 1570. The various chemical constituents of the Lauraceae are discussed in relation to the taxonomy of the family. Although there is a great paucity of data, the variation in the arylpropanoids, alkaloids, flavanoids and terpene constituents is in general in agreement with the subdivision of the family put forward by Kostermans.
Qiu, Y.-L. Lee, J., Bernasconi-Quadroni, F., Soltis, D.E., Soltis, P.S., Zanis, M., Zimmer, E.A., Chen, Z. Savolainen, V. Chase, M.W. 2000. Phylogeny of basal angiosperms: analyses of five genes from three genomes. Int. J. Plant Sci. 161 (6 Suppl.): S3-S27.
Simić, A., Soković, M. D., Ristić, M., Grujić‐Jovanović, S., Vukojević, J., & Marin, P. D. (2004). The chemical composition of some Lauraceae essential oils and their antifungal activities. Phytotherapy Research, 18(9), 713-717.
Soltis, D.E., Soltis, P.S., Albert, V.A., Oppenheimer, D.G, dePamphilis, C.W., Frohlich, M.W., Theißen, G. 2002. Missing links: The genetic arcitecture of the flower and floral diversification. Trends Plant Sci. 7: 22-31.
Lauraceae references: