Bibiography:  Author Listing
Author group 'U'


Umber, R. E. 1979. The genus Glandularia (Verbenaceae) in North America. Systematic Botany 41:72-102.

Umber, R.E. 1979. The genus Glandularia (Verbenaceae) in North America Syst. Bot. 4:72-102.

Urbatsch, L. E. 1972. Systematic study of the Altissimae and Giganteae species groups of the genus Vernonia (compositae). Brittonia 24:229-238.

Urbatsch, L. E. 1978. The Chihuahuan Desert species of Ericameria (Compositae: Astereae). Sida 7:298-303.

Urbatsch, L.E. 1972. Systematic study of the Altissimae and Giganteae species groups of the genus Vernonia (Compositae) Brittonia 24:229-238.

Urbatsch, L.E. and R.K. Jansen. 1995. Phylogenetic affinities among and within the coneflower genera (Asteraceae, Heliantheae), a chloroplast DNA analysis Syst. Bot. 20:28-39.

Urich, R.W., D.L. Bowerman, J.A. LEVISKY, and J.L. Pflug. 1982. Datura stramonium: a fatal poisoning J. Forensic Sci. 27:948-954.

Uttal, L. J. 1987. The genus Vaccinium L. (Ericaceae) in Virginia. Castanea 52:231-255.

Uttal, L. J. 1988. Lectotypification of Azalea rosea Loisel. (Ericaceae) and a new combination in Rhododendron periclymenoides (Michx.) Shinners. Sida 13:167-169.