Jackson, DW 1981: An SEM sutdy of lichen pruina crystal morphology. - Scanning Electron Microscopy1981(III): 279-284. [RLL List # 112-35 / Rec.# 9183] Keywords: SEM/ PRUINA/ PHYSCIA/ HETERODERMIA/ PYXINE/ WEDDELLITE/ WHEWELLITE
Abstract: 12 figures. 1 table. [Pruina of Pyxine caesiopruinosa, Physcia aipolia, and Heterodermia albicans are composed of forms of weddellite, while those of Physcia americana may be whewellite. "Evidence was found that indicates a matrix material may be secreted by the hyphae along with the crystallized substance."]