The linear-leaved North American species of Potamogeton : section axillares /

Monograph of the North and Central American species of the genus Senecio--Part II.
by: Greenman, Jesse More, 1867-1950
Published: (1915)

A monograph of the North American species of the genus Polygonum /
by: Small, John Kunkel, 1869-1938
Published: (1895)

A revision of the North American species of the section Boraphila Engler of the genus Saxifraga (Tourn) L. /
by: Johnson, Arthur Monrad, 1878-
Published: (1923)

The species of Rumex occurring north of Mexico /
by: Trelease, William, 1857-1945
Published: (1892)

The species of Epilobium occurring north of Mexico /
by: Trelease, William, 1857-1945
Published: (1891)

The American species of Crepis : their interrelationships and distribution as affected by polyploidy and apomixis /
by: Babcock, E. B. (Ernest Brown), 1877-1954
Published: (1938)

Taxonomy of American species of linden (Tilia).
by: Jones, George Neville, 1904-
Published: (1968)

Field guide to native oak species of eastern North America /
by: Stein, John D.
Published: (2003)

A monograph of the American species of the genus Dyschoriste /
by: Kobuski, Clarence Emmeren, 1900-
Published: (1928)

The species of rhododendron.
Published: (1930)

Studies on American grasses : the North American species of Chætochloa /
by: Lamson-Scribner, F.
Published: (1900)

Notes on tulip species /
by: Dykes, William Rickatson, 1877-1925
Published: (1930)

Illustrations of North American pitcherplants /
by: Walcott, Mary Vaux, 1860-1940
Published: (1935)

Studies on American grasses : a revision of the North American species of Bromus occurring north of Mexico /
by: Shear, C. L. (Cornelius Lott), 1865-1956
Published: (1900)

Sunflower species of the United States /
by: Rogers, C. E. (Charlie Ellic), 1938-
Published: (1982)

The genera and species of orchidaceous plants /
by: Lindley, John, 1799-1865
Published: (1963)

Vegetative propagation of arachis species /
by: Nigam, S. N.
Published: (1978)

Morphoanatomical atlas of grass leaves, culms, and caryopses /
by: Gandhi, Dhara, et al.
Published: (2021)

A Guide to species irises : their identification and cultivation /
Published: (1997)

Grass species and varieties ; relationships between stage of growth, yield and forage quality /
by: Green, J. O.
Published: (1971)

Xylotomy of the living Cycads, with a description of their leaves and epidermis /
by: Greguss, Pál, 1890-
Published: (1968)

Genetic resources of Allium species : a global report /
by: Astley, D.
Published: (1982)

A bibliography of rhubarb and rheum species /
by: Marshall, Dale
Published: (1988)

Revision of the Mexican species of Cyperus (Cyperaceae) /
by: Tucker, Gordon C. (Gordon Charles), 1957-
Published: (1994)

Revision of the Old World species of Setaria /
Published: (2014)

The wild species of Gossypium and their evolutionary history /
Published: (1961)

Experimental studies on species relationships in Ceanothus.
by: Nobs, Malcolm A.
Published: (1963)

The taxonomy of Saxifraga (Saxifragaceae), section Boraphila, subsection Integrifoliae in western North America /
by: Elvander, Patrick E., 1950-
Published: (1984)

The polygamous species of the genus Galium (Rubiaceae), section Lophogalium, of Mexico and southwestern United States /
by: Dempster, Lauramay T., 1905-1997
Published: (1973)

Genera et species asterearum. : Recensuit, descriptionibus et animadversionibus illustravit /
by: Nees von Esenbeck, Christian Gottfried Daniel, 1776-1858
Published: (1833)

Systematics of the annual species of Muhlenbergia (Poaceae-Eragrostideae) /
by: Peterson, Paul M.
Published: (1991)

American grasses--I : descriptions of the species /
by: Lamson-Scribner, F.
Published: (1900)

Systematics and pollination of the "closed-flowered" species of Calathea (Marantaceae) /
by: Kennedy, Helen, 1941-
Published: (1978)

A monograph of the Bambusaceae, including descriptions of all the species.
by: Munro, William, 1818-1880
Published: (1966)

The systematics and evolution of the Oenothera caespitosa species complex (Onagraceae) /
by: Wagner, Warren Lambert
Published: (1985)

The Pacific species of Pittosporum Banks ex Gaertn. (Pittosporaceae) /
by: Haas, Judith E.
Published: (1977)