Convolvulus has about tso to 200 species, mainly in temperate climates; the genus is principally developed in the Mediterranean area and western Asia.
It drains the tract between the Yamdok Tso and Tigu Lakes, and is fed by the glaciers of the Kulha Kangri and other great ranges.
Under them are village headmen or tso-piin, headmen or mi-pan, and elders or gyan-po.
In what has been called, though erroneously, as we shall see, Confucius's History of his own Times, we find only 13 states of note, and the number of all the states, large and small, which can be brought together from it, and the much more extensive supplement to it by Tso K`iu-ming, not much posterior to the sage, is under 150.
The Annals of Lu, enlarged by Tso K`iu-ming so as to embrace the history of the kingdom generally, are as full of life and interest as the pages of Froissart.
Happily Tso K`iu-ming took it in hand to supply those events, incorporating also others with them, and continuing his narratives over some additional years, so that through him the history of China in all its states, from year to year, for more than two centuries and a half, lies bare before us.