Distribution of L-type asteroid and CO-CV chondrite spectra in the taxonomical space of M22. Asteroid spectra are shown as filled symbols, with two shades of blue depending on whether they fall into the L_L or the L_M group. The symbol indicates the family a given asteroid belongs to. Meteorite spectra scores are shown as open triangles, colour-coded by their respective class and subclass. Arrows show compositional interpretations of the axes of the space and an approximate vector for the effect of increasing space weathering on the score of a spectrum. Grey circles show the scores of spectra used to define the taxonomy in M22, black letters give the mean positions of taxonomic classes in the respective subspace.