Distribution of the absolute magnitude of all the observed primitive asteroids within the primitive collisional families located in the inner main belt (Polana, Erigone, Sulamitis, Clarissa, Klio, Chaldaea, Chimaera, and Svea) as a function of the spectral slope. There is a total of 318 observed objects from the eight families. The vertical black line represents the mean value of the slope dispersion, 1.13%∕1000 Å. The dashedblue and red lines represent the mean spread of the spectral slopes that we might expect (blue for a one-sigma spread, and red for two-sigma). These regions are defined in the main text.