For Myosotis
Al-Shehbaz, I.A. 1991. The genera of Boraginaceae in the southeastern United States. J. Arnold Arb. Suppl. Series 1: 1-169. Google Scholar
Weigend, M., F. Selvi, D.C. Thomas, and H.H. Hilger. 2016. Boraginaceae. In Kadereit, J.W., and V. Bittrich. 2016. The families and genera of flowering plants. XIV. Flowering plants – Eudicots – Aquifoliales, Boraginales, Bruniales, Dipsacales, Escalloniales, Garryales, Paracryphiales, Solanales (except Convolvulaceae), Icacinaceae, Metteniusaceae, Vahliaceae. Springer, Berlin. 412 pp. Google Scholar