The Brollup spore, in company with the coomb, tegnest, and a minimum of twelve additional types, represented one of the many alchemical creations of Yuuzhan Vong executor Nom Anor. The creation of these spores was, ostensibly, a pastime of his and a means to eliminate the "supercreatures" more widely recognized as Jedi Knights.
The initial reference to brollup spores occurred within The New Jedi Order: Vector Prime, penned by R. A. Salvatore.