Ancient Plants / Being a Simple Account of the past Vegetation of the Earth and of the Recent Important Discoveries Made in This Realm of Nature

by Marie Carmichael Stopes

Fig. 27

Latex cells.—Large, often much elongated cells, m, lying in the parenchyma, p, [fig. 27], which are packed with contents. Compare [fig. 107], s.

Fig. 28

Sclerenchyma.—Thick-walled cells among parenchyma for strengthening, [fig. 28]. Compare [fig. 34], s.

Fig. 29

Cork.—Layers of cells replacing the epidermis in old stems. Outer cells, o, crushed; k, closely packed cork cells; stone cells, s, [fig. 29]. Compare [fig. 95], k.

Cork cambium.—Narrow, actively dividing cells, c in [fig. 29], giving rise to new cork cells in consecutive rows.