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Hello Otto, Just another guess…what about Equisetum rhizome. At least for your last slide. The think-walled elongated cells in your last slide, resemble Equisetum rhizome epidermis. May not be charred. With all the best Lucy Kubiak-Martens > Hello, > > This is just a guess...Chenopodiaceae? (maybe the big spaces in slide 8, > slide 11, are included phloem). > > Toodle-oo. Naomi > > On Jul 30, 2012, at 10:50 AM, Brinkkemper, Otto wrote: > >> Dear colleagues, >> >> In an Early Holocene deposit, with recognisable charcoal of Pinus (cross >> section of Coniferous type with raisin channels) and Betula (cross >> section with scalariform perforation plates and rays of two cells wide) >> in a thin section, my colleague Hans Huisman who studied these thin >> sections found charred plant remains with in several cases seemingly a >> concentric pattern of leaves. Does any of the photo's in the attached >> PPTX-file ring any bell? Never mind the text sheets in Dutch, they >> merely announce what's coming next. The last slide shows a longitudinal >> section which might also give some hints, although it is not certain if >> this belongs to the same plant. >> Any hints would be highly welcome, >> >> With kind regards, >> >> oTTo >> <Verkoold materiaal A2 II.pptx> > > ------------------------------------------------- > Naomi F. Miller > University of Pennsylvania Museum > Near East Section > 3260 South Street > Philadelphia, PA 19104 USA > 215.898.4075 > 215.898.0657 (fax) > http://www.sas.upenn.edu/~nmiller0 > [log in to unmask] > >