Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 1996)

Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 1996)

Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 2000)

Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 2000)

Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 2011)

Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 2011)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1994)

Journal of the Kentucky Academy of Science - Kentucky Academy of Science. (The Academy, 2005)

Journal of the Kentucky Academy of Science - Kentucky Academy of Science. (The Academy, 2005)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2002)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2002)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1998)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1994)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1994)

Reading Naturalist. Reading - Reading Natural History Society.

Revised checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1997)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2021)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2021)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1996)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1996)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1996)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1996)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1999)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1999)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1998)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1998)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1998)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 2006)