I don't have the answer (yet), but would note that the references I've seen to Mt. Alzapan all seem to be from 1925... you might need a historical map. Also, those references explicitly state Tayabas province.

Nepenthes alzapan Jebb & Cheek, sp. nov. Type:—PHILIPPINES. Luzon, “Tayabas Prov., Mt Alzapan”, male fl. 7 June 1925, Ramos & Edanõ 45690 (holotype K!; isotypes NY!, UC!, US!) (Fig. 1).

I'll continue poking around....

Kind regards and please let us know what you find,
Robert


Jason M Glatz wrote:
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Hello,

 

I’m trying to assist a graduate student who is looking for the latitude and longitude of an obscure mountain in the Philippines called Mt. Alzapan (possibly spelled Alsapan). It is located on Luzon around the provinces of Nueva Vizcaya or Quirino. He believes that it should be between 1,000 and 2,000 meters tall. It is referenced in a couple of botanical journals, but I have not been able to find it using our maps, gazetteers (we are missing the 1st volume of our Philippine Board on Geographic Names Gazetteer), or  a lengthy Google search. Any help you can provide would be greatly appreciated.

 

Thanks,
Jason

 

Jason Glatz, Maps Specialist

University Libraries (2014 Waldo Library)

Western Michigan University

1903 W Michigan Ave

Kalamazoo MI 49008-5353 USA