Heard: "loci" with [k], not [s]; cf. "fungi" with [Ng], not [nDZ] [NT]

[Scott]

Not two words one usually hears in conversation; however, it seems to
me that here in Montana the pronunciations you indicate are usual. In
fact, ISTR a lame joke: "He always orders his pizza with mushrooms;
he's a real fun guy!"

Scott Swanson

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