North American species of Asterella.

Study of Allocarya.
Published: (1920)

Revisions of genera Acanthospermum, Flourensia, Oyedaea, and Tithonia.
Published: (1921)

Monograph of Hauyeae and Gongylocarpeae, tribes of Onagraceae.
Published: (1913)

Allioniaceae of Mexico and Central America.
Published: (1911)

Botrychium virginianum and its forms; Sphenoclea zeylanica and Caperonia palustris in Southern U.S.
Published: (1913)

Two new sedges from Southwestern U.S.
Published: (1915)

American species of Canavalia and Wenderothia.
Published: (1925)

The gardener's botanical : an encyclopedia of latin plant names /
by: Bayton, Ross
Published: (2020)

Species concepts in biology : historical development, theoretical foundations and practical relevance /
by: Zachos, Frank E., 1974-
Published: (2016)

Endangered species : a reference handbook /
by: Sherry, Clifford J.
Published: (1998)

New species of Piper from Panama.
Published: (1920)

The species-area relationship : theory and application /
Published: (2020)

The origin, expansion, and demise of plant species /
by: Levin, Donald A.
Published: (2000)

Science and the Endangered Species Act /
Published: (1995)

The edge of the wild - upholding the endangered species act.
Published: (2016)

The Endangered Species Act : overview and implementation /
by: Sheikh, Pervaze A., et al.
Published: (2021)

Communicating endangered species : extinction, news and public policy /
Published: (2022)

Mixed-species groups of animals : behavior, community structure, and conservation /
by: Goodale, Eben, et al.
Published: (2017)

Plant species-level systematics : new perspectives on pattern & process /
Published: (2005)

Candidate species : section 4 of the Endangered Species Act.
Published: (2002)

Encyclopedia of endangered species /
Published: (1994)

Defining Species Conservation Success : Tribal, State and Local Stewardship vs. Federal Courtroom Battles and Sue-and-Settle Practices.
Published: (2013)

The intrinsic value of endangered species /
by: Smith, Ian A., 1975-
Published: (2016)

The evolutionary biology of species /
by: Barraclough, Timothy G.
Published: (2019)

Revisiting the Origin of Species : the other Darwins /
by: Hoquet, Thierry
Published: (2018)

Saving endangered species : lessons in wildlife conservation from Indianapolis Prize winners /
Published: (2020)

Endangered Species Act amendments : hearing before the Committee on Resources, House of Representatives, One Hundred Fourth Congress, first session, on H.R. 2275, a bill to reauthorize and amend the Endangered Species Act of 1973, September 20, 1995--Washington, DC.
Published: (1995)

Species coexistence : ecological and evolutionary perspectives /
by: Tokeshi, M.
Published: (1999)

Hearing on the Endangered Species Act : field hearing before the Committee on Resources, House of Representatives, One Hundred Fifth Congress, second session, October 26, 1998, Clovis, New Mexico.
Published: (1998)

Databook on endangered tree and shrub species and provenances /
Published: (1986)

Conservation of endangered species in captivity : an interdisciplinary approach /
Published: (1995)

The gray wolf under the Endangered Species Act (ESA) : a case study in the listing and delisting challenges /
by: Ward, Erin H.
Published: (2020)

Species : newsletter of the SSC.
Published: (1986)

Legislative Hearing on a Discussion Draft Bill, S. _, the Endangered Species Act Amendments of 2018.
Published: (2018)

Species : a history of the idea /
by: Wilkins, John S., 1955-
Published: (2009)

What, if anything, are species? /
by: Mishler, Brent Drennen, 1953-
Published: (2021)