While building a character for use in PFS, I came across the Apocryphal Subdomains from Pathfinder Player Companion: Divine Antholgy.
A domain-using PC can gain access to one of these subdomains via the following faith trait. An NPC does not need such a trait, provided that the NPC has a flavorful background that explains how he or she came in contact with the apocryphal information. Subdomains were introduced on page 86 of the Pathfinder RPG Advanced Player’s Guide.
Acolyte of Apocrypha (Faith): Your religious studies hinged on teachings rarely recognized by your faith. You can select one of the apocryphal subdomains detailed below, provided the subdomain is associated with your patron deity. In some cases, you can select a subdomain associated with a deity despite that deity not offering the associated domain—these exceptions are noted with an asterisk (*), and you gain domain powers and domain spells from the associated domain as usual, even though your deity normally doesn’t grant access to that domain. When selecting a subdomain associated with two domains, a priest can choose only a subdomain that modifies a domain to which he has access. All deities referenced in the following subdomains appear in Pathfinder Campaign Setting: Inner Sea Gods or Pathfinder Campaign Setting: Dragon Empires Gazetteer.
Now, as a domain using character, can a druid with this trait take a apocryphal subdomain like the Alchemy Subdomain (which is normally related to the Artifice/Magic domain) as long as he worships either Brigh, Haagenti, Norgorber* (for Artifice only), Orgesh* (for Magic only), or Qi Zhong? Or does the domain choice presented in the Nature's Bond class feature override the extra choices that the trait offers?
I myself hope that the trait adds to the list, so I could make a more "unique" type of druid character for PFS. But since I'm not sure if it works this way, I turn to the forums in hope of a consensus on this particular rules-interaction.
@blahpers and blashimov
I already feared the answer might be this, but it could never hurt to ask. The Apocryphal Subdomains for Air, Animal, Earth, Plant and Weather do not really interest me, so I guess I'll use my trait for something else. Thank you both for your input on this.
I did not know about that archetype, and I think I'll concoct another character with that one. I had already settled on an Ifrit with the Feyspeaker archetype (and was planning on a level dip into something else as well). But I can use the Nature Priest archetype for yet another druid character, so thanks for bringing that one to my attention!
What you could do, though, is to go with the Nature Priest archetype - it changes your domain selection to match that of the deity you worship, so something like a Druid with the Alchemy subdomain should be possible if you worship, say, Brigh.
Ooh, that totally works. Thanks, I'll have to remember that for next druid.