LINKS:

GOOGLE Directory: directory.google.com/Top/Science/Biology/Flora_and_Fauna/Plantae/Coniferophyta

NCBI = GenBank + other Databases: http://ncbi.nlm.nih.gov/entrez/query.fcgi

ePIC Data Sources:www.rbg.kew.org/epic/datasources.htm

References to Papers and Books:www.boga.ruhr-uni-bochum.de/gymnoliteratur.html