Henriksson, E/ Simu, B 1971: Nitrogen fixation by lichens. - Oikos22: 119-121. [RLL List # 79 / Rec.# 8264] Keywords: NITROGEN FIXATION/ PELTIGERA RUFESCENS/ COLLEMA TUNIFORME
Abstract: 1 tab. ["The lichens Collema tuniforme and Peltigera rufescens were shown to fix molecular nitrogen in a quantity of about 30 ng per mg dry weight and hour under laboratory conditions used."]
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