In this issue:

Am. J. Bot. 2004 91: 0. [Full Text]  

Book Review:

B. C. Husband

Chromosomal variation in plant evolution
Am. J. Bot. 2004 91: 621-625. [Full Text]  

Bryology and Lichenology:

William B. Sanders, Richard L. Moe, and Carmen Ascaso

The intertidal marine lichen formed by the pyrenomycete fungus Verrucaria tavaresiae (Ascomycotina) and the brown alga Petroderma maculiforme (Phaeophyceae): thallus organization and symbiont interaction
Am. J. Bot. 2004 91: 511-522. [Abstract] [Full Text]  

Ecology:

Humberto Fabio Causin, David C. Tremmel, Thomas W. Rufty, and James F. Reynolds

Growth, nitrogen uptake, and metabolism in two semiarid shrubs grown at ambient and elevated atmospheric CO₂ concentrations: effects of nitrogen supply and source
Am. J. Bot. 2004 91: 565-572. [Abstract] [Full Text]  

Arielle M. Cooley, Alexandra Reich, and Philip Rundel

Leaf support biomechanics of neotropical understory herbs
Am. J. Bot. 2004 91: 573-581. [Abstract] [Full Text]  

Genetics and Molecular Biology:

Zeng-Yu Wang, Yaxin Ge, Megann Scott, and German Spangenberg

Viability and longevity of pollen from transgenic and nontransgenic tall fescue (Festuca arundinacea) (Poaceae) plants
Am. J. Bot. 2004 91: 523-530. [Abstract] [Full Text]  

Population Biology:

Kristina A. Stinson

Natural selection favors rapid reproductive phenology in Potentilla pulcherrima (Rosaceae) at opposite ends of a subalpine snowmelt gradient
Am. J. Bot. 2004 91: 531-539. [Abstract] [Full Text]  

Jennifer M. Cruse-Sanders and J. L. Hamrick

Genetic diversity in harvested and protected populations of wild American ginseng, Panax quinquefolius L. (Araliaceae)
Am. J. Bot. 2004 91: 540-548. [Abstract] [Full Text]  

Rosemarie Walter and Bryan K. Epperson

Microsatellite analysis of spatial structure among seedlings in populations of Pinus strobus (pinaceae)
Am. J. Bot. 2004 91: 549-557. [Abstract] [Full Text]  

Reproductive Biology:

A. Hedhly, J. I. Hormaza, and M. Herrero

Effect of temperature on pollen tube kinetics and dynamics in sweet cherry, Prunus avium (Rosaceae)
Am. J. Bot. 2004 91: 558-564. [Abstract] [Full Text]  

Systematics:

Johan B. Mols, Barbara Gravendeel, Lars W. Chatrou, Michael D. Pirie, Paul C. Bygrave, Mark W. Chase, and Paul J. A. Keßler

Identifying clades in Asian Annonaceae: monophyletic genera in the polyphyletic Miliuseae
Am. J. Bot. 2004 91: 590-600. [Abstract] [Full Text] [Supplementary Data]  

Paul E. Berry, William J. Hahn, Kenneth J. Sytsma, Jocelyn C. Hall, and Austin Mast

Phylogenetic relationships and biogeography of Fuchsia (Onagraceae) based on noncoding nuclear and chloroplast DNA data
Am. J. Bot. 2004 91: 601-614. [Abstract] [Full Text] [Supplementary Data]  

Sangtae Kim, Douglas E. Soltis, Pamela S. Soltis, and Youngbae Suh

DNA sequences from Miocene fossils: an ndhF sequence of Magnolia latahensis (Magnoliaceae) and an rbcL sequence of Persea pseudocarolinensis (Lauraceae)
Am. J. Bot. 2004 91: 615-620. [Abstract] [Full Text]  

Tropical Biology:

Alexandra Reich, N. Michele Holbrook, and John J. Ewel

Developmental and physiological correlates of leaf size in Hyeronima alchorneoides (Euphorbiaceae)
Am. J. Bot. 2004 91: 582-589. [Abstract] [Full Text]  

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