Link to photo of var. apulcensis in the Michael P. Frankis cone collection.

Pinus pseudostrobus

Lindley 1839

Common Names

Taxonomic Notes

Two varieties, pseudostrobus and apulcensis (Farjon and Styles 1997). Variety pseudostrobus is further divided into forma pseudostrobus and forma protuberans Martínez 1948.

Synonyms for the type variety include (Farjon 1998):

P. orizabae Gordon 1846
P. protuberans Roezl 1857
P. angulata Roezl 1857
P. protuberans var. angulata (Roezl) Carr. 1867
P. regeliana Roezl 1857
P. pseudostrobus var. coatepecensis Martínez 1945
P. pseudostrobus var. estevezii Martínez 1945
P. estevezii (Martínez) J.P. Perry 1982
P. pseudostrobus var. alpulcensis (Lindley) Martínez 1945 non Shaw 1909
P. pseudostrobus forma megacarpa Loock 1950
P. pseudostrobus subsp. alpulcensis (Lindley) Stead 1984, typ. excl.
P. nubicola J.P. Perry 1987
P. pseudostrobus var. laubenfelsii Silba 1990
P. yecorensis Debreczy et Rácz 1995
P. yecorensis var. sinaloensis Debreczy et Rácz 1995

Description

Range

El Salvador, Guatemala, Honduras, Mexico, with f. protuberans restricted to Mexico: Distrito Federal, Jalisco, México, Michoacán, Morelos, Puebla and Oaxaca (Farjon 1998). See also Thompson et al. (1999).

Big Tree

Oldest

Dendrochronology

One study performed in Oaxaca (Naylor 1971) found generally unsatisfactory results: all sampled trees were young, complacent, and could not be crossdated. This finding was attributed to an insufficiently seasonal climate. I am cautious about this, knowing that Naylor (1971) reached the same conclusion for Pinus hartwegii, a species which has since proved useful not in Oaxaca, but at similar sites in Colima. Further work can be located at the Bibliography of Dendrochronology.

Ethnobotany

Observations

Remarks

This species is a principal host for the dwarf mistletoes Arceuthobium aureum subsp. aureum (in Guatemala), A. aureum subsp. petersonii (in Oaxaca and Chiapas), A. durangense (in Jalisco), A. globosum subsp. grandicaule (in southern Mexico and Guatemala), and A. oaxacanum (rare, in Oaxaca) (Hawksworth and Wiens 1996).

Citations

Naylor, T.H. 1971. Dendrochronology in Oaxaca, Mexico: a preliminary study. Tree-Ring Bulletin 31:25-29. Available online at www.treeringsociety.org/TRBTRR/TRBvol31_25-29.pdf (accessed 2006.06.14).