ClipArt ETC
"Radial longitudinal section of wood of Pinus Sylvestris. a, cambium; b, c, d, e, f, wood cells; f, bordered pits in an early stage of formation, before the thickening ring has arched over the thin portion of cell'wall; t', bordered pit after the thickening mass has arched over the thin cell-wall; st, very large pits where in contact with medullary rays." — Encyclopedia Britanica, 1893

Pinus Sylvestris

"Radial longitudinal section of wood of Pinus Sylvestris. a, cambium; b, c, d, e, f, wood cells; f,…

"Tangential section through the wood of grapevine. m, cells of medullary ray, and n, of xylem parenchyma, packed full of starch." -Stevens, 1916

Grapevine Wood

"Tangential section through the wood of grapevine. m, cells of medullary ray, and n, of xylem parenchyma,…