In this issue:

Am. J. Bot. 2003 90: 0. [Full Text]  

Invited Special Paper:

Verne Grant

Incongruence between cladistic and taxonomic systems
Am. J. Bot. 2003 90: 1263-1270. [Abstract] [Full Text]  

Brief Communication:

Barry A. Logan, Gary Monteiro, Dmytro Kornyeyev, Paxton Payton, Randy D. Allen, and A. Scott Holaday

Transgenic overproduction of glutathione reductase does not protect cotton, Gossypium hirsutum (Malvaceae), from photoinhibition during growth under chilling conditions
Am. J. Bot. 2003 90: 1400-1403. [Abstract] [Full Text]  

Ecology:

Raúl E. Alcalá and César A. Domínguez

Patterns of prey capture and prey availability among populations of the carnivorous plant Pinguicula moranensis (Lentibulariaceae) along an environmental gradient
Am. J. Bot. 2003 90: 1341-1348. [Abstract] [Full Text]  

Genetics and Molecular Biology:

Michael T. Tercek, Donald P. Hauber, and Steven P. Darwin

Genetic and historical relationships among geothermally adapted Agrostis (bentgrass) of North America and Kamchatka: evidence for a previously unrecognized, thermally adapted taxon
Am. J. Bot. 2003 90: 1306-1312. [Abstract] [Full Text]  

Paleobotany:

Elizabeth J. Hermsen, María A. Gandolfo, Kevin C. Nixon, and William L. Crepet

Divisestylus gen. nov. (aff. Iteaceae), a fossil saxifrage from the Late Cretaceous of New Jersey, USA
Am. J. Bot. 2003 90: 1373-1388. [Abstract] [Full Text] [Supplemental Data]  

Lisa D. Boucher, Steven R. Manchester, and Walter S. Judd

An extinct genus of Salicaceae based on twigs with attached flowers, fruits, and foliage from the Eocene Green River Formation of Utah and Colorado, USA
Am. J. Bot. 2003 90: 1389-1399. [Abstract] [Full Text]  

Physiology and Development:

Christopher G. Meloche and Pamela K. Diggle

The pattern of carbon allocation supporting growth of preformed shoot primordia in Acomastylis rossii (Rosaceae)
Am. J. Bot. 2003 90: 1313-1320. [Abstract] [Full Text]  

Reproductive Biology:

Tetsuya Kasagi and Gaku Kudo

Variations in bumble bee preference and pollen limitation among neighboring populations: comparisons between Phyllodoce caerulea and Phyllodoce aleutica (Ericaceae) along snowmelt gradients
Am. J. Bot. 2003 90: 1321-1327. [Abstract] [Full Text]  

Beverly J. Rathcke

Floral longevity and reproductive assurance: seasonal patterns and an experimental test with Kalmia latifolia (Ericaceae)
Am. J. Bot. 2003 90: 1328-1332. [Abstract] [Full Text]  

Christina M. Caruso, S. Brook Peterson, and Caroline E. Ridley

Natural selection on floral traits of Lobelia (Lobeliaceae): spatial and temporal variation
Am. J. Bot. 2003 90: 1333-1340. [Abstract] [Full Text]  

Structure and Development:

Shirley C. Tucker

Floral ontogeny in Swartzia (Leguminosae: Papilionoideae: Swartzieae): distribution and role of the ring meristem
Am. J. Bot. 2003 90: 1271-1292. [Abstract] [Full Text]  

Hervé Sauquet

Androecium diversity and evolution in Myristicaceae (Magnoliales), with a description of a new Malagasy genus, Doyleanthus gen. nov
Am. J. Bot. 2003 90: 1293-1305. [Abstract] [Full Text] [Supplemental Data]  

Systematics:

Chuanzhu Fan and Qiu-Yun Xiang

Phylogenetic analyses of Cornales based on 26S rRNA and combined 26S rDNA-MATK-RBCL sequence data
Am. J. Bot. 2003 90: 1357-1372. [Abstract] [Full Text] [Supplemental Data]  

Tropical Biology:

Bruno Clair, Meriem Fournier, Marie Françoise Prevost, Jacques Beauchene, and Sandrine Bardet

Biomechanics of buttressed trees: bending strains and stresses
Am. J. Bot. 2003 90: 1349-1356. [Abstract] [Full Text]  

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