In this issue:

Am. J. Bot. 2001 88: 0. [Full Text]  

Book Review:

Lawrence D. Harder

Mode and tempo of species diversification
Am. J. Bot. 2001 88: 1707-1710. [Full Text]  

Brief Communication:

Deepak Saxena and G. Stotzky

Bt corn has a higher lignin content than non-Bt corn
Am. J. Bot. 2001 88: 1704-1706. [Abstract] [Full Text]  

Ecology:

William E. Rogers and David C. Hartnett

Temporal vegetation dynamics and recolonization mechanisms on different-sized soil disturbances in tallgrass prairie
Am. J. Bot. 2001 88: 1634-1642. [Abstract] [Full Text]  

Dennis M. Gorsuch, Steven F. Oberbauer, and Jack B. Fisher

Comparative vessel anatomy of arctic deciduous and evergreen dicots
Am. J. Bot. 2001 88: 1643-1649. [Abstract] [Full Text]  

Peggy A. Schultz, R. Michael Miller, Julie D. Jastrow, Claudia V. Rivetta, and James D. Bever

Evidence of a mycorrhizal mechanism for the adaptation of Andropogon gerardii (Poaceae) to high- and low-nutrient prairies
Am. J. Bot. 2001 88: 1650-1656. [Abstract] [Full Text]  

Paleobotany:

Alan Graham, Kathryn M. Gregory-Wodzicki, and Kari L. Wright

Studies in Neotropical Paleobotany. XV. A Mio-Pliocene palynoflora from the Eastern Cordillera, Bolivia: implications for the uplift history of the Central Andes
Am. J. Bot. 2001 88: 1545-1557. [Abstract] [Full Text]  

Brian J. Axsmith, Michael Krings, and Thomas N. Taylor

A filmy fern from the Upper Triassic of North Carolina (USA)
Am. J. Bot. 2001 88: 1558-1567. [Abstract] [Full Text]  

Phycology:

Andrea V. Sussmann and Robert E. DeWreede

Life history of Acrosiphonia (Codiolales, Chlorophyta) in southwestern British Columbia, Canada
Am. J. Bot. 2001 88: 1535-1544. [Abstract] [Full Text]  

Physiology and Development:

Steven K. Rice, David Collins, and Ann M. Anderson

Functional significance of variation in bryophyte canopy structure
Am. J. Bot. 2001 88: 1568-1576. [Abstract] [Full Text]  

Population Biology:

Jennifer L. Williams and Jeffrey K. Conner

Sources of phenotypic variation in floral traits in wild radish, Raphanus raphanistrum (Brassicaceae)
Am. J. Bot. 2001 88: 1577-1581. [Abstract] [Full Text]  

Francisco Batista, Angel Bañares, Juli Caujapé-Castells, Eduardo Carqué, Manuel Marrero-Gómez, and Pedro A. Sosa

Allozyme diversity in three endemic species of Cistus (Cistaceae) from the Canary Islands: intraspecific and interspecific comparisons and implications for genetic conservation
Am. J. Bot. 2001 88: 1582-1592. [Abstract] [Full Text]  

Kirsten A. Leiss and Heinz Müller-Schärer

Adaptation of Senecio vulgaris (Asteraceae) to ruderal and agricultural habitats
Am. J. Bot. 2001 88: 1593-1599. [Abstract] [Full Text]  

Reproductive Biology:

Oscar J. Rocha and Gabriel Aguilar

Variation in the breeding behavior of the dry forest tree Enterolobium cyclocarpum (guanacaste) in Costa Rica
Am. J. Bot. 2001 88: 1600-1606. [Abstract] [Full Text]  

Oscar J. Rocha and Gabriel Aguilar

Reproductive biology of the dry forest tree Enterolobium cyclocarpum (guanacaste) in Costa Rica: a comparison between trees left in pastures and trees in continuous forest
Am. J. Bot. 2001 88: 1607-1614. [Abstract] [Full Text]  

Jennifer M. Moody-Weis and John S. Heywood

Pollination limitation to reproductive success in the Missouri evening primrose, Oenothera macrocarpa (Onagraceae)
Am. J. Bot. 2001 88: 1615-1622. [Abstract] [Full Text]  

Charles F. Williams, Jessica Ruvinsky, Peter E. Scott, and Diana K. Hews

Pollination, breeding system, and genetic structure in two sympatric Delphinium (Ranunculaceae) species
Am. J. Bot. 2001 88: 1623-1633. [Abstract] [Full Text]  

Systematics:

Wendy B. Zomlefer, Norris H. Williams, W. Mark Whitten, and Walter S. Judd

Generic circumscription and relationships in the tribe Melanthieae (Liliales, Melanthiaceae), with emphasis on Zigadenus: evidence from ITS and trnL-F sequence data
Am. J. Bot. 2001 88: 1657-1669. [Abstract] [Full Text]  

Andrea S. Vega and Zulma Rúgolo de Agrasar

Morphological interpretation of the spikelet in Digitaria atra (Poaceae: Panicoideae: Paniceae) and emended generic description
Am. J. Bot. 2001 88: 1670-1674. [Abstract] [Full Text]  

Gregory T. Chandler, Randall J. Bayer, and Michael D. Crisp

A molecular phylogeny of the endemic Australian genus Gastrolobium (Fabaceae: Mirbelieae) and allied genera using chloroplast and nuclear markers
Am. J. Bot. 2001 88: 1675-1687. [Abstract] [Full Text]  

Vickie Caraway, Gerald D. Carr, and Clifford W. Morden

Assessment of hybridization and introgression in lava-colonizing Hawaiian Dubautia (Asteraceae: Madiinae) using RAPD markers
Am. J. Bot. 2001 88: 1688-1694. [Abstract] [Full Text]  

Annika Vinnersten and Kåre Bremer

Age and biogeography of major clades in Liliales
Am. J. Bot. 2001 88: 1695-1703. [Abstract] [Full Text]  

Tropical Biology:

Shoko Sakai

Thrips pollination of androdioecious Castilla elastica (Moraceae) in a seasonal tropical forest
Am. J. Bot. 2001 88: 1527-1534. [Abstract] [Full Text]  

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