Constantinos Petrinos / Tower of the Winds or the Horologion of Andronikos Kyrrhestes, with Cypress Tree (Cupressus sempervirens), and the Fethiye Mosque among the ruins of the Roman Agora. Athens, Greece, Mediterranean, Ja...

Constantinos Petrinos / The Temple of Hephaestus surrounded by Cypress trees (Cupressus sempervirens), Olive trees (Olea europaea) and Prickly pears (Opuntia ficus-indica ). Attica region, Athens, Greece, January 2011.

Constantinos Petrinos / The Temple of Hephaestus surrounded by Cypress trees (Cupressus sempervirens), Olive trees (Olea europaea) and Prickly pears (Opuntia ficus-indica ). Attica region, Athens, Greece, January 2011.

Philippe Clement / Cypress spurge (Euphorbia cyparissias) in flower, Italian Alps, Gran Paradiso National Park, June

Philippe Clement / Cypress spurge (Euphorbia cyparissias) in flower, Italian Alps, Gran Paradiso National Park, June

MYN / Dimitris Poursanidis / Mediterranean cypress (Cupressus sempervirens) with cone, Crete, Greece.

Albert Lleal / Italian Cypress (Cupressus sempervirens) dispensing pollen in the wind

Albert Lleal / Italian Cypress (Cupressus sempervirens) SEM close-up view of pollen at 2800x magnification