Low-luminosity supergiants around B0.7. The main features used for classification in this spectral range are marked on top of the spectrum of 26 Cep. Other features of interest are indicated close to the other spectra. HD 190919, the B0.7 Ib standard suggested by Walborn, is almost identical to HD 193076, which Walborn (1971) classifies as B0.7 II and is shown in Fig. 7. Our proposed replacement, HD 190066 lies halfway between the B0.5 Ib and B1 Ib standards in terms of temperature indicators and is closer to them in luminosity. Compare to Fig. 7, and note that HD 192422 is clearly earlier than 26 Cep and would be close to B0.2 Ib.