Note 18 — Chapter II
Reading edition
Engler, A. Plants of the Northern Temperate Zone in their transition to the High Mountains of Tropical Africa. Annals of Botany, Vol. XVIII. p. 523. 1904.
Reading edition
Engler, A. Plants of the Northern Temperate Zone in their transition to the High Mountains of Tropical Africa. Annals of Botany, Vol. XVIII. p. 523. 1904.