Columbia subject headings:
Botanical illustration--History.
Botanical literature--History.
Botanists--Africa, Southern--Biography.
Botany--Africa, Southern--History.
Plant collectors--Africa, Southern--Biography.
Harvard subject headings:
Botanical illustration--History.
Botanical literature--History.
Botanists--Africa, Southern--Biography.
Botany--Africa, Southern--History.
Plant collectors--Africa, Southern--Biography.
Princeton subject headings:
Botanical illustration--History.
Botanical literature--History.
Botanists--Africa, Southern--Biography.
Botany--Africa, Southern--History.
Plant collectors--Africa, Southern--Biography.