found: Work cat.: 97-137262: Biogeochemistry of lichens and mosses in and near Mt. Zirkel Wilderness, Routt National Forest, Colorado : influences of coal-fired power plant emissions, 1996:p. ii (Tortula ...)
found: Web. 3:under Tortulaceae (tortula, genus of mosses)
found: Ind. nom. gen. (plant.)(Tortula, Pottiaceae)
found: Engler Syl. Pfanz.:under Dematiaceae (Tortula)
found: CAB thes.(Tortula; bt=Deuteromycotina)
found: Mosses of eastern North America, 1981:under Pottiaceae (Tortula)
found: Smith, A.J.E. The moss flora of Britain and Ireland, 1978(Tortula)
found: AGRICOLA, via 1stsearch, June 25, 1998(titles: Tortula ...; identifiers: Tortula ...)
found: Biol. & agr. index, via 1stsearch, June 25, 1998(titles: Tortula ...; subjects: Tortula ...)
notfound: SPN;National list of sci. plant names, 1982