Systematics and pollination of the "closed-flowered" species of Calathea (Marantaceae) /

The pollination of flowers by insects /
Published: (1978)

Systematics of the genus Monochaetum (Melastomataceae) in Mexico and Central America /
by: Almeda, Frank
Published: (1978)

Systematics of tuberous lomatiums (Umbelliferae) /
by: Schlessman, Mark A., 1952-
Published: (1984)

Systematics of Frankenia (Frankeniaceae) in North and South America /
by: Whalen, Molly Ann
Published: (1987)

Systematics of the Acutae group of Carex (Cyperaceae) in the Pacific Northwest /
by: Standley, Lisa A., 1953-
Published: (1985)

Systematics and economic botany of the Oenocarpus--Jessenia (Palmae) complex /
by: Balick, Michael J., 1952-
Published: (1986)

Taxonomy of Agastache section Brittonastrum (Lamiaceae-Nepeteae) /
by: Sanders, Roger William
Published: (1986)

Revision of Hieracium (Asteraceae) in Mexico and Central America /
by: Beaman, John H.
Published: (1990)

Revision of Palicourea (Rubiaceae) in Mexico and Central America /
by: Taylor, Charlotte M.
Published: (1989)

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

Experimental pollination ; an outline of the ecology of flowers and insects /
by: Clements, Frederic E. (Frederic Edward), 1874-1945
Published: (1923)

Carlowrightia (Acanthaceae) /
by: Daniel, Thomas F., 1954-
Published: (1983)

Revision of Perymenium (Asteraceae-Heliantheae) in Mexico and Central America /
by: Fay, John J.
Published: (1978)

Pollination ecology and evolution in Compositae (Asteraceae) /
by: Mani, M. S.
Published: (1999)

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

Morphology and systematics of Paepalanthus subgenus Xeractis (Eriocaulaceae) /
by: Hensold, Nancy
Published: (1988)

A monograph of Leochilus (Orchidaceae) /
by: Chase, Mark W., 1951-
Published: (1986)

Systematic botany of flowering plants : a new phylogenetic approach to angiosperms of the temperate and tropical regions /
Published: (2004)

Revision of Cuphea Section Diploptychia (Lythraceae) /
by: Graham, Shirley A.
Published: (1998)

Connaraceae /
by: Forero, Enrique, 1942-
Published: (1983)

Olacaceae /
by: Sleumer, Hermann Otto
Published: (1984)

Ericaceae /
by: Luteyn, James L., 1948-
Published: (1983)

Revision of Cuphea section Heterodon (Lythraceae) /
by: Graham, Shirley A.
Published: (1988)

Revision of Tristerix (Loranthaceae) /
by: Kuijt, Job
Published: (1988)

Revisão taxonômica do gênero Simaba Aubl. (Simaroubaceae) na América do Sul /
by: Cavalcante, Paulo B.
Published: (1983)

Catalogue of New World grasses (Poaceae).
Published: (2003)

Gleasonia, Henriquezia, and Platycarpum (Rubiaceae) /
by: Rogers, George K. (George King)
Published: (1984)

The pollination of flowers /
by: Proctor, M. C. F. (Michael Charles Faraday)
Published: (1972)

A taxonomic revision of the continental African Bulbophyllinae /
by: Vermeulen, J. J., 1955-
Published: (1987)

Saprophytes pro parte /
by: Maas, P. J. M.
Published: (1986)

An introduction to the modern classification of insects : founded on the natural habits and corresponding organisation of the different families /
by: Westwood, J. O. (John Obadiah), 1805-1893
Published: (1839)

Insect pollination of crops /
by: Free, John Brand
Published: (1970)

A revision of the genus Ptychosperma Labill (Arecaceae) /
by: Essig, Frederick B.
Published: (1978)

Grass systematics /
by: Gould, Frank W.
Published: (1983)

Pollination of agricultural crops by bees = Opylenie pchelami sel'skokhozyaistvennykh kul'tur /
Published: (1977)

A taxonomic revision of the genus Acriopsis Reinwardt ex Blume (Acriopsidinae, Orchidaceae) /
by: Minderhoud, M. E.
Published: (1986)