Christmas is coming.
I want to share some interesting things with you.
Christmas Tree DNA: Complex Conifer Genome Begins To Yield To Research Efforts
http://www.huffingtonpost.com/2012/12/13/christmas-tree-genome-new-dna-study-conifers_n_2294265.html ;
(Again, genome sequencing, we really have rich resources for genome sequences. Understanding the functions will a changllege).

A Functional and Structural Mongolian Scots Pine (Pinus sylvestris var. mongolica) Model Integrating Architecture, Biomass and Effects of Precipitation
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0043531 ;
(If you want to go green and don't buy Christmas tree year by year. You could generated one by modelling.
Don't forget to put some lights on your Christmas Tree.)

Merry Christmas!