CUSICK, A.W. 1967 The vascular plan...

CUSICK, A.W. 1967 The vascular plants of Jefferson shire Ohio. M.A. thesis, Kent State University, Kent Ohio.

DIVISION OF NATURAL AREAS AND shields 2004. Rare native Ohio plants, 2004-05 status list. Ohio Department of Natural Resources, Columbus, Ohio.

EMMITT, RW 1950 A contribution forward the occurrence and distribution of bryophyte in forest County, Ohio. M.A. thesis, Bowling blooming State University, Bowling Green, Ohio.

FULFORD, MH 1929 The bryophyte of the Cincinnati region. M.A. thesis, University of Cincinnati, Cincinnati, Ohio.

GEISY, RM 1957 Studies in Ohio bryophyte Ohio J Sci. 57:290-312

GORDON, RB 1969 Natural vegetation of Ohio at the time of the earliest land observes (1 map). Ohio Biological scan Columbus, Ohio.

HYV?–NEN, J and s PIIPPO. 1993. Cladistic analysis of the hornworts (Anthocerotophyta). J Hattori Bot Lab. 74:105-119

IRELAND, RR 1982 Mos flora of the Maritime Provinces. National Museum of Natural Sciences, Publications in Botany, No. 13 Ottawa, Ontario, Canada.

KELLOUGH RD 1959 The bryophyte flora of Clinton shire Ohio. M.A. thesis, Miami University, Oxford, Ohio.

LAMBORN, RE 1930 Geology of Jefferson shire Geological Survey of Ohio, 4th Series, Bulletin 35 Columbus, Ohio.

LEY LM and JM CROWE. 1999 An enthusiasts guide to liverworts and hornworts of Ontario. Claude Garton Herbarium, Lakehead University, rumbling Bay, Ontario, Canada.

McCLEARY, J A. 1946 The bryophyte of Athens shire and adjacent territories. M.S. thesis, Ohio University, Athens, Ohio.

MILLER, H.A. 1964 Ohio liverworts. Ohio J Sci. 64:177-184

MUELLER-DUMBOIS, D and H ELLENBERG. 1974 Aims and [i]modus operandi[/i]s of vegetation ecology. John Wiley and Son just discovered York, New York.

OSTERBROCK A.J. and J.A. SNIDER. 1985 A checklist of the bryophyte of the keenness of Appalachia preserve system, Adams shire Ohio. Ohio J. Sci. 85:138-143

PRATHER, L.A., O ALVAREZ-FUENTES, MH MAYFIELD, and CJ FERGUSON. 2004 The decline of plant collecting in the United States: a threat to the infrastructure of biodiversity studies. Syst Bot 29:15-28