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A plant widespread throughout temperate, subtropical and tropical regions.

Common Mallow

A plant widespread throughout temperate, subtropical and tropical regions.

"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,…