I missed this recent paper. I only discovered it while reading through Barrie Schwortz’ Late Breaking News for the most recent update to shroud.com. Here is what Barrie reports:
Exploration of the Face of the Turin Shroud. Pollens Studied by SEM Analysis by Gérard Lucotte – Archeological Discovery, Vol.3 No.4, October 2015. Here is an excerpt from the abstract:
"We studied by SEM-EDX analysis the pollens on the Face of the Turin Shroud. A total of ten pollen grains were found; they were photographed, characterised and analysed. Three of them (pollens p6, p7 and p10) belong to Ceratonia siliqua, the carob tree; one of them (pollen p1) belongs to Balanites aegyptiaca (the palm tree of the desert), and another one (pollen p9) belongs to Cercis siliquastrum (the Judean tree). These three plants have their geographical distributions in the Near-East; that is indicative of a Palestinian origin of the Turin Shroud…"
FREE PDF: The full paper (DOI: 10.4236/ad.2015.34014), richly illustrated with 23 photographs, is published in Scientific Research, an open access journal. The PDF file can be downloaded from the summary and abstract page.