Actinosporangiumvitaminophilum is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Actinosporangium.
See also Ezaki et al. (1983).Publication:
Ezaki N, Koyama M, Kodama Y, Shomura T, Tashiro K, Tsuruoka T, Inouye S, Sakai S. Pyrrolomycins F1, F2a, F2b and F3, new metabolites produced by the addition of bromide to the fermentation. J Antibiot (Tokyo) 1983; 36:1431-1438.