Acapulco & Colombian.. I hear it was a process before curing that involved scraping the stem that interdicted the transportation of minerals during the flush causing the yellow/golden hue.
ah found it:
"The production of "la mona amarilla" or gold buds is achieved by girdling or removing a strip of bark from the main stem of a nearly mature plant, thereby restricting the flow of water, nutrients, and plant products. Over several days the leaves dry up and fall off as the flowers slowly die and turn yellow. This produces the highly prized "Colombian gold" so prevalent in the early to middle 1970s (Partridge 1973)."
As to red buds/pistils?
Maybe Panama Red, Punta Roja (Columbian Red), Skunk Red Hair, not sure of any more.