Pinus tecunumanii[3] has been one of the most intensively studied tropical pines in the last two decades. The CAMCORE Cooperative[4], began its first provenance seed collections of P. tecunumanii in Central America in March 1981. Since then CAMCORE has sampled 1473 trees in 48 populations of P. tecunumanii throughout southern Mexico and Central America. One hundred and fifty-three provenance/progeny trials and 50 ex situ conservation banks have been established in 9 countries. There have been 357 selections made in CAMCORE progeny tests and the best genotypes have been grafted into seed orchards in Colombia and South Africa. Other seed orchards are planned for Brazil and Venezuela. Costs for the seed collections and establishment, maintenance, and assessment of field trials over the last 20 years have been approximately US 1.0 million dollars. This paper summarizes some of what has been learned about the species as the result of these intensive research efforts