@book {1508,
	title = {Flora of Tropical Africa},
	volume = {*},
	year = {1868},
	author = {D. Oliver and W. Turner Thiselton-Dyer and D. Prain and A. William Hill}
}
@book {1478,
	title = {Flora of West Tropical Africa},
	volume = {1},
	year = {1954},
	author = {J. Hutchinson and J. M. Dalziel}
}
