Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2001)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2003)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (1996)

A checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1986)

Checklist of the armored scales (Homoptera: Diaspididae) of the conterminous United States - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1982)

A checklist of the vascular flora in the vicinity of the Oldman River Dam - Alberta Environmental Centre. (Alberta Environmental Centre, 1992)

Checklist of the vascular flora of St. Catherines Island, Georgia - Jones, Samuel B., 1933 - (American Museum of Natural History, 1988)

Checklist of the vascular plants of Alabama from the John D. Freeman Herbarium and the University of Alabama Herbarium - Morton, Cynthia M. (Carnegie Museum of Natural History, 2002)

Checklist of the vascular plants of the intermountain region - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1966)

Checklist of vascular plants of the Southern Rocky Mountain Region - Snow, Neil Wilton (2009)

Chloroplast pigments and chromatographic analysis - Strain, Harold H. (Harold Henry), 1904 - (Pennsylvania State University, 1958)

Circle west vegetation baseline study : final report - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1978)

Circle West vegetation monitoring study - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1982)

Class book of botany : being an introduction to the study of the vegetable kingdom - Balfour, John Hutton, 1808 -1884 (Adam and Charles Black, 1854)

The classification of flowering plants - Rendle, A. B. (Alfred Barton), 1865 -1938 (University press, 1904)