Early Secondary Xylem
hi-res links (requires broadband)
Curtis, Lersten, and Nowak 2002 rev. 2019
Solanum lycopersicum
(garden tomato): early development of secondary xylem, vascular cambium, and patches of secondary phloem.
Juglans
(walnut) woody stem cross section.
Tilia
(basswood) stem cross section, one year old.
Tilia
(basswood) stem cross section, one year old.
Tilia
(basswood) stem cross section, one year old.
Tilia
(basswood) stem cross section, two years old.
Tilia
(basswood) stem cross section, two years old.
Tilia
(basswood) stem cross section, three years old.
Tilia
(basswood) stem cross section, three years old.
Tilia
(basswood) stem cross section, three years old.
Tilia
(basswood) stem cross section, three years old.
Tilia
(basswood) stem cross section, xylem, phloem with pith rays, and bark.
Tilia
(basswood) three-year-old stem showing all tissues.
Tilia
(basswood) stem cross section with lenticel.
Lenticel closeup.
Tilia
(basswood) stem cross section: vascular cambium and bark.
Tilia
(basswood) stem cross section: vascular cambium and secondary phloem.
Tilia
(basswood) stem cross section: vascular cambium.
Acer saccharum
(sugar maple) stem, four years old.
Acer saccharum
(sugar maple) inner woody stem with pith, primary and secondary xylem.
Robinia
(locust) woody stem cross-section.
Robinia
(locust) stem cross section.
Sambucus
(elderberry) stem cross section: vascular cambium, phloem fibers, and wood.
Pine (
Pinus
) stem, four (?) years old.