Abstract：
:This study shows that structural data, when carefully examined, can provide valuable characters for delimiting monophyletic groups and can complement DNA with observable features to recognize and circumscribe taxa. In the angiosperm order Apiales, traditional classification has relied heavily (often exclusively) on fruit characters. Recent molecular systematic studies, however, provided a radically different picture of relationships, calling into question the utility of fruit characters. We have studied fruit anatomy from 18 genera (Annesorhiza, Asteriscium, Astrotricha, Choritaenia, Dasispermum, Elaeoselinum, Heptaptera, Hermas, Heteromorpha, Laretia, Molopospermum, Myodocarpus, Pachypleurum, Peucedanum, Polemanniopsis, Polylophium, Rouya, and Tordylium) that represent all major taxonomic groups of Apiales characterized by winged fruits and the full range of wing types. Fruit anatomy closely corresponded with the phylogenetic position of these genera, as suggested by molecular studies. Fruit features of taxonomic importance include developmental origin of the wings, carpel shape, presence of vittae, woodiness of the endocarp, position of crystals, and type of carpophores. Despite the long history of recognizing umbellifers as a "natural group," few studies have been able to provide structural characters to help circumscribe the clades identified by molecular data. The interpretations presented are an important step toward erecting a stable system of classification for this difficult family.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Liu MR,Plunkett GM,Lowry PP 2nd,Wyk BE,Tilney PMdoi
10.3732/ajb.93.9.1357subject
Has Abstractpub_date
2006-09-01 00:00:00pages
1357-68issue
9eissn
0002-9122issn
1537-2197pii
93/9/1357journal_volume
93pub_type
杂志文章abstract：PREMISE OF THE STUDY:Over one-third of the native flowering plant species in the Hawaiian Islands are listed as federally threatened or endangered. Lack of sufficient pollination could contribute to reductions in populations, reproduction, and genetic diversity among these species but has been little studied. METHODS:...
journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2019-02-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2011-08-01 00:00:00
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journal_title：American journal of botany
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更新日期：2015-05-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章,评审
doi：10.3732/ajb.1000289
更新日期：2011-03-01 00:00:00
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journal_title：American journal of botany
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更新日期：2009-11-01 00:00:00
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journal_title：American journal of botany
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更新日期：2004-03-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2007-06-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2008-01-01 00:00:00
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更新日期：2002-06-01 00:00:00
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更新日期：2000-12-01 00:00:00
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更新日期：2017-06-01 00:00:00
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更新日期：2005-08-01 00:00:00
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更新日期：2014-05-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1502
更新日期：2020-07-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2017-08-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2011-10-01 00:00:00
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journal_title：American journal of botany
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journal_title：American journal of botany
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更新日期：2006-07-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2008-07-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2011-02-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2009-09-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2003-08-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2013-01-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2006-09-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2017-01-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：2001-08-01 00:00:00
abstract：:Oxalate crystals are very common in angiosperms, but few descriptions of their macropattern (crystal types, their tissue distribution, and development) exist. Because unusually large prismatic crystals and druses, are known from pomegranate, we traced the development of crystal macropattern in various-aged leaf sample...
journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.92.12.1935
更新日期：2005-12-01 00:00:00
