Content Author Object Flagger Flag Created Reason Resolved by Resolution
Chiapas white pine (Variety Pinus strobus chiapensis) astrobirder Wed, 20 Mar 2019 20:15:20 +0000

Lump this with P. chiapensis?

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P. strobus chiapensis is an accepted synonym for P. chiapensis. No ambiguity.

Posted by chris_earle about 2 years ago (Flag)
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POWO continues to treat chiapensis as a ssp of strobus http://www.plantsoftheworldonline.org/?q=Pinus+chiapensis

Posted by loarie over 1 year ago (Flag)
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@chris_earle are you asking that we elevate P. strobus chiapensis to species status as P. chiapensis?

Posted by loarie over 1 year ago (Flag)
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Any updates on this? Can you guys clarify that what you're proposing to do is deviate from POWO by elevating Pinus strobus chiapensis to species status as Pinus chiapensis? If not I'd like to close this

Posted by loarie 9 months ago (Flag)
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IUCN treats it as P. strobus var. chiapensis, but they don't really keep up with the literature. Syring et al. 2007 find it equally similar/dissimilar to P. monticola and P. strobus, in particular finding that if it arose through vicarian speciation, it's at least as likely to be from P. monticola as from P. strobus; they conclude it warrants species status. del Castillo et al. 2009 reach a similar conclusion, perhaps less well grounded in evidence. I find no evidence that Farjon or Eckenwalder seriously questioned subspecies status in preparing their comprehensive reviews of Pinus in 2010 and 2009, respectively, but in subsequent correspondence I've found Farjon receptive to the species rank notion. The Threatened Conifers of the World website (https://threatenedconifers.rbge.org.uk/conifers/pinus-chiapensis) treats it at species rank. So I propose deviating from POWO on this point. Personally, I'm reasonably sure that a renewed molecular study would support this.

del Castillo, R. F., S. T. Argueta, and C. Sáenz-Romero. 2009. Pinus chiapensis, a keystone species: Genetics, ecology, and conservation. Forest Ecology and Management. 257(11):2201–2208.

Syring, J., R. F. del Castillo, R. Cronn, and A. Liston. 2007. Multiple nuclear loci reveal the distinctiveness of the threatened, neotropical Pinus chiapensis. Systematic Botany. 32(4):703–717.

Posted by chris_earle 8 months ago (Flag)
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OK - to make this change we'll need to split P. strobus. Looking at this map of observations https://www.inaturalist.org/taxa/52391-Pinus-strobus can you describe the boundary between P. strobus and P. chiapensis? Is it as simple as Mexico = P. chiapensis and North of Mexico = P. strobus?

Posted by loarie 8 months ago (Flag)
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Yes, it is that simple.

Posted by chris_earle 8 months ago (Flag)
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Posted by loarie 8 months ago (Flag)

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