Letter from the Editor:

Judy J. Jernstedt

From the First Century of the Botanical Society of America into the Second
Am. J. Bot. 2006 93: 941. [Full Text] [PDF]  

History of the Botanical Society of America:

Vassiliki Betty Smocovitis

One hundred years of American botany: a short history of the Botanical Society of America
Am. J. Bot. 2006 93: 942-952. [Abstract] [Full Text] [PDF]  

Special Paper:

Ian M. Ehrenreich and Michael D. Purugganan

The molecular genetic basis of plant adaptation
Am. J. Bot. 2006 93: 953-962. [Abstract] [Full Text] [PDF]  

Anatomy and Morphology:

Sherwin Carlquist and Edward L. Schneider

Origins and nature of vessels in monocotyledons: 8. Orchidaceae
Am. J. Bot. 2006 93: 963-971. [Abstract] [Full Text] [PDF]  

Ecology:

Stacey A. Leicht and John A. Silander, Jr.

Differential responses of invasive Celastrus orbiculatus (Celastraceae) and native C. scandens to changes in light quality
Am. J. Bot. 2006 93: 972-977. [Abstract] [Full Text] [PDF]  

Brenda B. Casper, I. N. Forseth, and D. Alexander Wait

A stage-based study of drought response in Cryptantha flava (Boraginaceae): gas exchange, water use efficiency, and whole plant performance
Am. J. Bot. 2006 93: 978-987. [Abstract] [Full Text] [PDF]  

Akiko Sakai, Ayako Sasa, and Satoki Sakai

Do sexual dimorphisms in reproductive allocation and new shoot biomass increase with an increase of altitude? A case of the shrub willow Salix reinii (Salicaceae)
Am. J. Bot. 2006 93: 988-992. [Abstract] [Full Text] [PDF]  

Physiology and Biochemistry:

Brendan Choat, Tyler W. Brodie, Alexander R. Cobb, Maciej A. Zwieniecki, and N. Michele Holbrook

Direct measurements of intervessel pit membrane hydraulic resistance in two angiosperm tree species
Am. J. Bot. 2006 93: 993-1000. [Abstract] [Full Text] [PDF]  

Population Biology:

Lisa E. Wallace

Spatial genetic structure and frequency of interspecific hybridization in Platanthera aquilonis and P. dilatata (Orchidaceae) occurring in sympatry
Am. J. Bot. 2006 93: 1001-1009. [Abstract] [Full Text] [PDF]  

Dorset W. Trapnell and J. L. Hamrick

Floral display and mating patterns within populations of the neotropical epiphytic orchid,Laeliarubescens (Orchidaceae)
Am. J. Bot. 2006 93: 1010-1018. [Abstract] [Full Text] [PDF]  

Jan Pergl, Irena Perglová, Petr Pysek, and Hansjörg Dietz

Population age structure and reproductive behavior of the monocarpic perennial Heracleum mantegazzianum (Apiaceae) in its native and invaded distribution ranges
Am. J. Bot. 2006 93: 1018-1028. [Abstract] [Full Text] [PDF]  

Reproductive Biology:

Fernanda Pérez, Mary T. K. Arroyo, Rodrigo Medel, and Mark A. Hershkovitz

Ancestral reconstruction of flower morphology and pollination systems in Schizanthus (Solanaceae)
Am. J. Bot. 2006 93: 1029-1038. [Abstract] [Full Text] [PDF]  

Systematics and Phytogeography:

Jonathan R. Bennett and Sarah Mathews

Phylogeny of the parasitic plant family Orobanchaceae inferred from phytochrome A
Am. J. Bot. 2006 93: 1039-1051. [Abstract] [Full Text] [PDF]  

H. Peter Linder, Titus Dlamini, Jack Henning, and G. Anthony Verboom

The evolutionary history of Melianthus (Melianthaceae)
Am. J. Bot. 2006 93: 1052-1064. [Abstract] [Full Text] [PDF] [Supplementary Data]  

Maria Vibe Norup, John Dransfield, Mark W. Chase, Anders S. Barfod, Edwino S. Fernando, and William J. Baker

Homoplasious character combinations and generic delimitation: a case study from the Indo-Pacific arecoid palms (Arecaceae: Areceae)
Am. J. Bot. 2006 93: 1065-1080. [Abstract] [Full Text] [PDF] [Supplementary Data]  

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