In this issue:

IN THIS ISSUE
Am. J. Bot. 1998 85: 0. [Full Text]

Invited Special Paper:

William P. Jacobs

Hormone transport and action in the green shoot:long-term studies of a clonal stock of Coleus blumei(Labiatae)
Am. J. Bot. 1998 85: 1353-1363. [Abstract] [Full Text]

Ecology:

Alfonso Valiente-Banuet, Noé Flores-Hernández, Miguel Verdú, and Patricia Dávila

The chaparral vegetation in Mexico undernonmediterranean climate: the convergence and Madrean-Tethyan hypothesesreconsidered
Am. J. Bot. 1998 85: 1398-1408. [Abstract] [Full Text]

Genetics and Molecular Biology:

RobertE. Hanson, Xin-ping Zhao, M.Nurul Islam-Faridi, AndrewH. Paterson, MichaelS. Zwick, CharlesF. Crane, ThomasD. McKnight, DavidM. Stelly, and H.James Price

Evolution of interspersed repetitive elements inGossypium (Malvaceae)
Am. J. Bot. 1998 85: 1364-1368. [Abstract] [Full Text]

Paleobotany:

Alan Graham

Studies in Neotropical paleobotany. XI. Late Tertiaryvegetation and environments of southeastern Guatemala: palynofloras fromthe Mio-Pliocene Padre Miguel Group and the Pliocene HerreríaFormation
Am. J. Bot. 1998 85: 1409-1425. [Abstract] [Full Text]

Alan Graham and DavidL. Dilcher

Studies in Neotropical paleobotany. XII. A palynoflorafrom the Pliocene Rio Banano Formation of Costa Rica and the Neogenevegetation of Mesoamerica
Am. J. Bot. 1998 85: 1426-1438. [Abstract] [Full Text]

Physiology and Development:

Edgar Moctezuma and LewisJ. Feldman

Growth rates and auxin effects in graviresponding gynophores of the peanut, Arachis hypogaea(Fabaceae)
Am. J. Bot. 1998 85: 1369-1376. [Abstract] [Full Text]

Reproductive Biology:

Stephen G. Weller, AnnK. Sakai, AnneE. Rankin, Annette Golonka, Brenda Kutcher, and KarenE. Ashby

Dioecy and the evolution of pollination systems inSchiedea and Alsinidendron (Caryophyllaceae:Alsinoideae) in the Hawaiian Islands
Am. J. Bot. 1998 85: 1377-1388. [Abstract] [Full Text]

Diane L. Marshall

Pollen donor performance can be consistent acrossmaternal plants in wild radish (Raphanus sativus,Brassicaceae): a necessary condition for the action of sexualselection
Am. J. Bot. 1998 85: 1389-1397. [Abstract] [Full Text]

Systematics:

PeterL. Morrell and LorenH. Rieseberg

Molecular tests of the proposed diploid hybrid originof Gilia achilleifolia (Polemoniaceae)
Am. J. Bot. 1998 85: 1439-1453. [Abstract] [Full Text]

LawrenceM. Kelly

Phylogenetic relationships in Asarum(Aristolochiaceae) based on morphology and ITSsequences
Am. J. Bot. 1998 85: 1454-1467. [Abstract] [Full Text]

Donald J. Padgett, DonaldH. Les, and GarrettE. Crow

Evidence for the hybrid origin of Nuphar xrubrodisca (Nymphaeaceae)
Am. J. Bot. 1998 85: 1468-1476. [Abstract] [Full Text]

Tropical Biology:

Kuniyasu Momose, Takakazu Yumoto, Teruyoshi Nagamitsu, Makoto Kato, Hidetoshi Nagamasu, Shoko Sakai, RhettD. Harrison, Takao Itioka, AbangA. Hamid, and Tamiji Inoue

Pollination biology in a lowland dipterocarp forest inSarawak, Malaysia. I. Characteristics of the plant-pollinator communityin a lowland dipterocarp forest
Am. J. Bot. 1998 85: 1477-1501. [Abstract] [Full Text]

Book Reviews:

Robert Wyatt

Richards II: some things do remain quite thesame
Am. J. Bot. 1998 85: 1502-1505. [Full Text]

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