Note 18 — FOSSIL FLORA OF THE SECONDARY OR MESOZOIC PERIOD.
Reading edition
See fuller description of Coniferæ and Cycadaceæ in Balfour's Class Book of Botany, pp. 906-912.
Reading edition
See fuller description of Coniferæ and Cycadaceæ in Balfour's Class Book of Botany, pp. 906-912.