Differences in cone and seed morphology of pinus strobiformis and pinus ayacahuite

1. Leal-Sáenz, A.
2. Waring, K.M.
3. Sniezko, R.A.
4. Menon, M.
5. Hernández-DÍaz, J.C.
6. López-Sánchez, C.A.
7. Martínez-Guerrero, J.H.
8. Mariscal-Lucero, S.D.R.
9. Silva-Cardoza, A.
10. Wehenkel, C.