@book {4539,
	title = {Reliquiae Haenkeanae},
	volume = {1},
	year = {1825},
	author = {C. Presl}
}
@book {4467,
	title = {Flora Xizangica},
	volume = {1},
	year = {1983},
	author = {Ching and S. K. Wu}
}
