Keys for Defining Genera and Species of the Family Boraginaceae Juss. in Zabaikalsky Krai
A new key to determine the 34 species of 16 genera of Boraginaceae in Zabaikalsky krai is given. As compared to "the Flora of Siberia" data, 7 additional species which have not been previously noted for the region are added: Argusia sibirica (L.) Dandy, Lappula tuvinica Ovczinnikova, Pulmonaria mollis Wulfen ex Hornem., Borago officinalis L., Symphytum officinalis L., Asperugo procumbens L. и Mertensia sibirica (L.) G. Don f. As well, we included one species of the genus Myosotis - M. palustr L. which has not been found on the territory, but has been lately discovered in Bichursky district near the border of Buryatia and Zabaikalsky krai, and also on the Khentey mountains. Diagnostic features of the flower and the fruit and their terminology are discussed. For determination of species of the Boraginaceae family, morphological features of corolla, calyx, length of filaments, shape of anthers and stigmas are important. But features of fruits are the most important. The form of a gynobase is a taxonomical character of a high rank (above tribus), and the form of erems is specific for the genus. The diagnostic characters of erems are shown in two tables.