Citation: Pm. Eckel et al., PSEUDOCROSSIDIUM OBTUSULUM (POTTIACEAE, BRYOPSIDA) NEW TO MONTANA WITH A KEY TO NORTH-AMERICAN SPECIES IN THE GENUS, The Great Basin naturalist, 57(3), 1997, pp. 259-262
Citation: Pm. Eckel, WEISSIA BRACHYCARPA (NEES AND HORNSCH) JUR AT NIAGARA-FALLS, A MOSS NEW TO ONTARIO, Canadian field-naturalist, 111(2), 1997, pp. 318-319
Citation: Pm. Eckel, THE MOSS TORTELLA-ALPICOLA DIX NEW TO ALBERTA AND THE YUKON-TERRITORYWITH A DISCUSSION OF ITS RANGE AND COMMENTS ON RELATED SPECIES, Canadian field-naturalist, 111(2), 1997, pp. 320-322