In this issue:

Am. J. Bot. 2004 91: 0. [Full Text]  

Invited Special Paper:

Dorota Kwiatkowska

Structural integration at the shoot apical meristem: models, measurements, and experiments
Am. J. Bot. 2004 91: 1277-1293. [Abstract] [Full Text]  

Ecology:

G. Anthony Verboom, H. Peter Linder, and William D. Stock

Testing the adaptive nature of radiation: growth form and life history divergence in the African grass genus Ehrharta (Poaceae: Ehrhartoideae)
Am. J. Bot. 2004 91: 1364-1370. [Abstract] [Full Text] [Supplementary Data]  

Jack T. Tessier

Leaf longevity of Oxalis acetosella (Oxalidaceae) in the Catskill Mountains, New York, USA
Am. J. Bot. 2004 91: 1371-1377. [Abstract] [Full Text]  

James N. Layne and Warren G. Abrahamson

Long-term trends in annual reproductive output of the scrub hickory: factors influencing variation in size of nut crop
Am. J. Bot. 2004 91: 1378-1386. [Abstract] [Full Text]  

Genetics and Molecular Biology:

J. Guillermo Seijo, Graciela I. Lavia, Aveliano Fernández, Antonio Krapovickas, Daniel Ducasse, and Eduardo A. Moscone

Physical mapping of the 5S and 18S–25S rRNA genes by FISH as evidence that Arachis duranensis and A. ipaensis are the wild diploid progenitors of A. hypogaea (Leguminosae)
Am. J. Bot. 2004 91: 1294-1303. [Abstract] [Full Text]  

Physiology and Biochemistry:

Scott A. Heckathorn, J. Kathleen Mueller, Stephanie LaGuidice, Bin Zhu, Tara Barrett, Brian Blair, and Yan Dong

Chloroplast small heat-shock proteins protect photosynthesis during heavy metal stress
Am. J. Bot. 2004 91: 1312-1318. [Abstract] [Full Text]  

Physiology and Development:

Cai-Xia Hou, Lynnette M. A. Dirk, and Mark A. Williams

Inhibition of peptide deformylase in Nicotiana tabacum leads to decreased D1 protein accumulation, ultimately resulting in a reduction of photosystem II complexes
Am. J. Bot. 2004 91: 1304-1311. [Abstract] [Full Text]  

Population Biology:

Jenny K. Archibald, Andrea D. Wolfe, and Steven D. Johnson

Hybridization and gene flow between a day- and night-flowering species of Zaluzianskya (Scrophulariaceae s.s., tribe Manuleeae)
Am. J. Bot. 2004 91: 1333-1344. [Abstract] [Full Text]  

Steven J. Franks, C. L. Richards, E. Gonzales, J. E. Cousins, and J. L. Hamrick

Multi-scale genetic analysis of Uniola paniculata (Poaceae): a coastal species with a linear, fragmented distribution
Am. J. Bot. 2004 91: 1345-1351. [Abstract] [Full Text]  

Efraín Tovar-Sánchez and Ken Oyama

Natural hybridization and hybrid zones between Quercus crassifolia and Quercus crassipes (Fagaceae) in Mexico: morphological and molecular evidence
Am. J. Bot. 2004 91: 1352-1363. [Abstract] [Full Text]  

Reproductive Biology:

Atsushi Kawakita and Makoto Kato

Obligate pollination mutualism in Breynia (Phyllanthaceae): further documentation of pollination mutualism involving Epicephala moths (Gracillariidae)
Am. J. Bot. 2004 91: 1319-1325. [Abstract] [Full Text]  

Matthew B. Routley, Paul Kron, and Brian C. Husband

The consequences of clone size for paternal and maternal success in domestic apple (Malus x domestica)
Am. J. Bot. 2004 91: 1326-1332. [Abstract] [Full Text]  

Systematics:

K. A. Shepherd, M. Waycott, and A. Calladine

Radiation of the Australian Salicornioideae (Chenopodiaceae)—based on evidence from nuclear and chloroplast DNA sequences
Am. J. Bot. 2004 91: 1387-1397. [Abstract] [Full Text] [Supplementary Data]  

Mona Hamzeh and Selvadurai Dayanandan

Phylogeny of Populus (Salicaceae) based on nucleotide sequences of chloroplast TRNT-TRNF region and nuclear rDNA
Am. J. Bot. 2004 91: 1398-1408. [Abstract] [Full Text] [Supplementary Data]  

André O. Simões, Mary E. Endress, Timotheüs van der Niet, Luiza S. Kinoshita, and Elena Conti

Tribal and intergeneric relationships of Mesechiteae (Apocynoideae, Apocynaceae): evidence from three noncoding plastid DNA regions and morphology
Am. J. Bot. 2004 91: 1409-1418. [Abstract] [Full Text] [Supplementary Data]  

Alexey B. Shipunov, Michael F. Fay, Yohan Pillon, Richard M. Bateman, and Mark W. Chase

Dactylorhiza (Orchidaceae) in European Russia: combined molecular and morphological analysis
Am. J. Bot. 2004 91: 1419-1426. [Abstract] [Full Text]  

Susanne S. Renner

Bayesian analysis of combined chloroplast loci, using multiple calibrations, supports the recent arrival of Melastomataceae in Africa and Madagascar
Am. J. Bot. 2004 91: 1427-1435. [Abstract] [Full Text]  

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