Avinoam Danin, a botanist from Hebrew University of Jerusalem claims he has identified pollen from the tumbleweed Gundelia tournefortii and a bean caper on the shroud.He claims this combination is found only around Jerusalem.Some believers think the crown of thorns was made of this type of tumbleweed. His sample of pollen grains originated with Max Frei, who tape-lifted pollen grain samples from the shroud.Frei's pollen grains have been controversial from the beginning.Even if the pollen grains weren't introduced by some pious fraud, they could have been carried to the shroud by anyone who handled it.In short, the pollen grains could have originated in Jerusalem at any time before or after the appearance of the shroud in Italy. Moreover, that there are two cloths believed to have been wrapped around the dead body of Jesus does not strengthen the claim that the shroud is authentic, but weakens it.Frei, who once pronounced the forged "Hitler Diaries" to be genuine, probably introduced the pollen grains himself or was duped and innocently picked up pollen grains another pious fraud had introduced (Nickell).Danin and his colleague Uri Baruch also claim that they found impressions of flowers on the shroud and that those flowers could only come from Israel.
It is claimed to be the image of a man brutally beaten in a way which corresponds to the way Jesus is thought to have been treated.
A weight of 20th century carbon equaling nearly two times the weight of the Shroud carbon itself would be required to change a 1st century date to the 14th century (see It may interest skeptics to know that many people of faith believe that there is scientific evidence which supports their belief in the shroud's authenticity.
Of course, the evidence is limited almost exclusively to pointing out facts that would be true the shroud were authentic.
However, the floral images they see are hidden in mottled stains much the way the image of Jesus is hidden in a tortilla or the image of Mary is hidden in the bark of a tree.
The first to see flowers in the stains was a psychiatrist, who was probably an expert at seeing personality traits in inkblots (Nickell, 1994)Danin notes that another relic believed to be the burial face cloth of Jesus (the Sudarium of Oviedo in Spain) contains the same two types of pollen grains as the Shroud and also is stained with type AB blood.