In this issue:

Am. J. Bot. 2000 87: 0. [Full Text]  

Invited Special Paper:

Colin M. Orians

The effects of hybridization in plants on secondary chemistry: implications for the ecology and evolution of plant–herbivore interactions
Am. J. Bot. 2000 87: 1749-1756. [Abstract] [Full Text]  

Ecology:

Annette M. Kretzer, Martin I. Bidartondo, Lisa C. Grubisha, Joseph W. Spatafora, Timothy M. Szaro, and Thomas D. Bruns

Regional specialization of Sarcodes sanguinea (Ericaceae) on a single fungal symbiont from the Rhizopogon ellenae (Rhizopogonaceae) species complex
Am. J. Bot. 2000 87: 1778-1782. [Abstract] [Full Text]  

Martin I. Bidartondo, Annette M. Kretzer, Elizabeth M. Pine, and Thomas D. Bruns

High root concentration and uneven ectomycorrhizal diversity near Sarcodes sanguinea (Ericaceae): a cheater that stimulates its victims?
Am. J. Bot. 2000 87: 1783-1788. [Abstract] [Full Text]  

Christopher J. Lortie and Lonnie W. Aarssen

A test of the reserve meristem hypothesis using Verbascum thapsus (Scrophulariaceae)
Am. J. Bot. 2000 87: 1789-1792. [Abstract] [Full Text]  

Christopher J. Lortie and Lonnie W. Aarssen

Fitness consequences of branching in Verbascum thapsus (Scrophulariaceae)
Am. J. Bot. 2000 87: 1793-1796. [Abstract] [Full Text]  

A. W. Schoettle and S. G. Rochelle

Morphological variation of Pinus flexilis (Pinaceae), a bird-dispersed pine, across a range of elevations
Am. J. Bot. 2000 87: 1797-1806. [Abstract] [Full Text]  

Meredith W. Cornett, Peter B. Reich, Klaus J. Puettmann, and Lee E. Frelich

Seedbed and moisture availability determine safe sites for early Thuja occidentalis (Cupressaceae) regeneration
Am. J. Bot. 2000 87: 1807-1814. [Abstract] [Full Text]  

Joanne G. Romagni and Corinna Gries

Post-fire recolonization of dominant epiphytic lichen species on Quercus hypoleucoides (Fagaceae)
Am. J. Bot. 2000 87: 1815-1820. [Abstract] [Full Text]  

Scott J. Meiners and Steven N. Handel

Additive and nonadditive effects of herbivory and competition on tree seedling mortality, growth, and allocation
Am. J. Bot. 2000 87: 1821-1826. [Abstract] [Full Text]  

Genetics and Molecular Biology:

M. S. Zwick, M. N. Islam-Faridi, H. B. Zhang, G. L. Hodnett, M. I. Gomez, J. S. Kim, H. J. Price, and D. M. Stelly

Distribution and sequence analysis of the centromere-associated repetitive element CEN38 of Sorghum bicolor (Poaceae)
Am. J. Bot. 2000 87: 1757-1764. [Abstract] [Full Text]  

Paleobotany:

Steven R. Manchester and Elizabeth J. Hermsen

Flowers, fruits, seeds, and pollen of Landeenia gen. nov., an extinct sapindalean genus from the Eocene of Wyoming
Am. J. Bot. 2000 87: 1909-1914. [Abstract] [Full Text]  

Reproductive Biology:

Steven R. Seavey, Susan K. Mangels, and Natasha J. Chappel

Unfertilized ovules of Epilobium obcordatum (Onagraceae) continue to grow in developing fruits
Am. J. Bot. 2000 87: 1765-1768. [Abstract] [Full Text]  

Margaret L. Ronsheim and James D. Bever

Genetic variation and evolutionary trade-offs for sexual and asexual reproductive modes in Allium vineale (Liliaceae)
Am. J. Bot. 2000 87: 1769-1777. [Abstract] [Full Text]  

Systematics:

Eva Wallander and Victor A. Albert

Phylogeny and classification of Oleaceae based on rps16 and trnL-F sequence data
Am. J. Bot. 2000 87: 1827-1841. [Abstract] [Full Text]  

W. Mark Whitten, Norris H. Williams, and Mark W. Chase

Subtribal and generic relationships of Maxillarieae (Orchidaceae) with emphasis on Stanhopeinae: combined molecular evidence
Am. J. Bot. 2000 87: 1842-1856. [Abstract] [Full Text]  

Charles D. Bell and Robert W. Patterson

Molecular phylogeny and biogeography of Linanthus (Polemoniaceae)
Am. J. Bot. 2000 87: 1857-1870. [Abstract] [Full Text]  

G. J. Allan and J. Mark Porter

Tribal delimitation and phylogenetic relationships of Loteae and Coronilleae (Faboideae: Fabaceae) with special reference to Lotus: evidence from nuclear ribosomal ITS sequences
Am. J. Bot. 2000 87: 1871-1881. [Abstract] [Full Text]  

Grégory Mahy, Leo P. Bruederle, Bridget Connors, Michael Van Hofwegen, and Nicholi Vorsa

Allozyme evidence for genetic autopolyploidy and high genetic diversity in tetraploid cranberry, Vaccinium oxycoccos (Ericaceae)
Am. J. Bot. 2000 87: 1882-1889. [Abstract] [Full Text]  

Bruce G. Baldwin and Bridget L. Wessa

Origin and relationships of the tarweed–silversword lineage (Compositae–Madiinae)
Am. J. Bot. 2000 87: 1890-1908. [Abstract] [Full Text]  

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