Does aridity influence the morphology, distribution and accumulation of calcium oxalate crystals in Acacia (Leguminosae: Mimosoideae)?
Calcium oxalate (CaOx) crystals are a common natural feature of many plant families, including the Leguminosae. The functional role of crystals and the mechanisms that underlie their deposition remain largely unresolved. In several species, the seasonal deposition of crystals has been observed. To gain insight into the effects of rainfall on crystal formation, the morphology, distribution and accumulation of calcium oxalate crystals in phyllodes of the leguminous Acacia sect. Juliflorae (Benth.) C. Moore & Betche from four climate zones along an aridity gradient, was investigated. The shapes of crystals, which include rare Rosanoffian morphologies, were constant between species from different climate zones, implying that morphology was not affected by rainfall. The distribution and5-year-old victim in Mall of America incident 'showing real signs of recovery,' family says "Our miracle child is showing real signs of recovery," the family said.

The family of a 5-year-old boy who was thrown from the third-floor balcony at the Mall of America released a hopeful update on Friday, saying that despite "a long road ahead," the boy is "showing real signs of recovery."

"We have good news to share with you on this Good Friday," the family said in a statement. "Our miracle child is showing real signs of recovery. New test results have been positive, though he remains in intensive care with a long road ahead. Our faith in God and our savior Jesus is strong, and we are gaining more reason for optimism day by day.