Anatomy and Morphology:

Richard Jagels and George E Visscher

A synchronous increase in hydraulic conductive capacity and mechanical support in conifers with relatively uniform xylem structure
Am. J. Bot. 2006 93: 179-187. [Abstract] [Full Text] [PDF]  

Brief Communication:

Kunsiri Chaw Siripun and Edward E Schilling

Molecular confirmation of the hybrid origin of Eupatorium godfreyanum (Asteraceae)
Am. J. Bot. 2006 93: 319-325. [Abstract] [Full Text] [PDF]  

Ecology:

Norris Z Muth and Massimo Pigliucci

Traits of invasives reconsidered: phenotypic comparisons of introduced invasive and introduced noninvasive plant species within two closely related clades
Am. J. Bot. 2006 93: 188-196. [Abstract] [Full Text] [PDF] [Supplementary Data]  

Paleobotany:

Diane M Erwin and Howard E Schorn

Pinus baileyi (section Pinus, Pinaceae) from the Paleogene of Idaho, USA
Am. J. Bot. 2006 93: 197-205. [Abstract] [Full Text] [PDF]  

Population Biology:

Yifei Liu, Yong Wang, and Hongwen Huang

High interpopulation genetic differentiation and unidirectional linear migration patterns in Myricaria laxiflora (Tamaricaceae), an endemic riparian plant in the Three Gorges Valley of the Yangtze River
Am. J. Bot. 2006 93: 206-215. [Abstract] [Full Text] [PDF]  

Pteridology:

Hans-Peter Kreier and Harald Schneider

Phylogeny and biogeography of the staghorn fern genus Platycerium (Polypodiaceae, Polypodiidae)
Am. J. Bot. 2006 93: 217-225. [Abstract] [Full Text] [PDF]  

Reproductive Biology:

Naoko Kitamoto, Saneyoshi Ueno, Akio Takenaka, Yoshihiko Tsumura, Izumi Washitani, and Ryo Ohsawa

Effect of flowering phenology on pollen flow distance and the consequences for spatial genetic structure within a population of Primula sieboldii (Primulaceae)
Am. J. Bot. 2006 93: 226-233. [Abstract] [Full Text] [PDF]  

Maria Ángeles Ortiz, Salvador Talavera, Juan Luis Garcia-Castaño, Karin Tremetsberger, Tod Stuessy, Francisco Balao, and Ramón Casimiro-Soriguer

Self-incompatibility and floral parameters in Hypochaeris sect. Hypochaeris (Asteraceae)
Am. J. Bot. 2006 93: 234-244. [Abstract] [Full Text] [PDF]  

Carl W Weekley and Amanda Brothers

Failure of reproductive assurance in the chasmogamous flowers of Polygala lewtonii (Polygalaceae), an endangered sandhill herb
Am. J. Bot. 2006 93: 245-253. [Abstract] [Full Text] [PDF]  

Tammy L Sage, Mary V Price, and Nickolas M Waser

Self-sterility in Ipomopsis aggregata (Polemoniaceae) is due to prezygotic ovule degeneration
Am. J. Bot. 2006 93: 254-262. [Abstract] [Full Text] [PDF]  

Shu-Mei Chang

Female compensation through the quantity and quality of progeny in a gynodioecious plant, Geranium maculatum (Geraniaceae)
Am. J. Bot. 2006 93: 263-270. [Abstract] [Full Text] [PDF]  

Tiffany M Knight, Janette A Steets, and Tia-Lynn Ashman

A quantitative synthesis of pollen supplementation experiments highlights the contribution of resource reallocation to estimates of pollen limitation
Am. J. Bot. 2006 93: 271-277. [Abstract] [Full Text] [PDF] [Supplementary Data]  

Systematics and Phytogeography:

Akiko Soejima and Jun Wen

Phylogenetic analysis of the grape family (Vitaceae) based on three chloroplast markers
Am. J. Bot. 2006 93: 278-287. [Abstract] [Full Text] [PDF]  

Brigitte Marazzi, Peter K Endress, Luciano Paganucci de Queiroz, and Elena Conti

Phylogenetic relationships within Senna (Leguminosae, Cassiinae) based on three chloroplast DNA regions: patterns in the evolution of floral symmetry and extrafloral nectaries
Am. J. Bot. 2006 93: 288-303. [Abstract] [Full Text] [PDF]  

Lúcia G Lohmann

Untangling the phylogeny of neotropical lianas (Bignonieae, Bignoniaceae)
Am. J. Bot. 2006 93: 304-318. [Abstract] [Full Text] [PDF]  

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