Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1988)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1989)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1990)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1992)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1994)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1995)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1996)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1998)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1999)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2000)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2001)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2002)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2003)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2007)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2008)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2009)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2010)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2011)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2012)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2013)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2014)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2015)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2016)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2017)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2018)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2019)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2020)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2021)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2022)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1940)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1941)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1942)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1943)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1944)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1945)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1946)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1947)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1948)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1950)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1951)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1952)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1953)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1954)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1955)

The Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) ([University of Washington, 1956)

Arboretum bulletin of the associates - University of Pennsylvania. Morris Arboretum. (The Morris Arboretum of the University of Pennylvania, 1941)

Arboretum et fruticetum britannicum, or : The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described ... - Loudon, J. C. (John Claudius), 1783 -1843 (J.C. Loudon, 1844)

Arboretum et fruticetum Britannicum, or : the trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described : with their propagation, culture, management, and uses in the arts, in useful and ornamental plantations, and in landscape gardening : preceded by a historical and geographical outline of the trees and shrubs of temperate climates throughout the world - Loudon, J. C. (John Claudius), 1783 -1843 (Printed for the author, and sold by Longman, Orme, Brown, Green, and Longmans, 1838)

Arctic searching expedition: a journal of a boat-voyage through Rupert's Land and the Arctic Sea, in search of the discovery ships under command of Sir John Franklin. With an appendix on the physical geography of North America - Richardson, John, Sir, 1787 -1865 (Longman, Brown, Green, and Longmans, 1851)

Arizona chaparral : plant associations and ecology - United States. Forest Service. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1978)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1934)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1941)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1949)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1933)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1935)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1936)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1932)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1946)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1943)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1947)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1944)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1948)

Armstrong Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Nurseries, 1945)

Armstrong seeds [catalog] : 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armstrong Seed Company, 1923)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1977)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1985)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1994)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1970)

L'art des jardins. Parcs–jardins–promenades–étude historique–principles de la composition des jardins–plantations–décoration pittoresque et artistique des parcs et jardins publics; traité pratique et didactique - Alphand, Adolphe, 1817 -1801 (J. Rothschild, 1886)

As California wild flowers grow: suggestions to nature lovers - Chandler, Katherine. (Harr Wagner Publishing Co, 1922)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1856)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1858)

The Asa Gray bulletin - McVaugh, Rogers, 1909 - (1952)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1983)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1986)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1989)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1991)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1993)

Asiatic herpetological research - Asiatic Herpetological Research Society. (Asiatic Herpetological Research Society, 2004)

Aspen community types of the Intermountain Region - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1988)

Assessment of the Red Rock River subbasin and wetlands of the Centennial Valley - United States. Bureau of Land Management. (Montana Natural Heritage Program, 2009)

Atala - Xerces Society. (Xerces Society, 1973)

Atlas of Adirondack caterpillars : with a host list, rearing notes, and a selected bibliography of works depicting caterpillars - McCabe, Timothy Lee. (University of the State of New York, State Education Dept., New York State Museum, Division of Research and Collections, 1991)

"Aulseed" quality seeds and bulbs, plants, implements for garden and farm - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Walter E. Cook Inc, 1923)

Australian Garden History: journal of the Australian Garden History Society - Australian Garden History Society (Australian Garden History Society, 2003)