View source for Cactaceae subfam. Pereskioideae

{{Treatment/ID
|accepted_name=Cactaceae subfam. Pereskioideae
|accepted_authority=Engelmann in W. H. Brewer et al.
|publications={{Treatment/Publication
|title=in W. H. Brewer et al., Bot. California
|place=1: 243. 1876
|year=1876
}}
|basionyms=
|synonyms=
|hierarchy=Cactaceae;Cactaceae subfam. Pereskioideae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cactaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Cactaceae subfam. Pereskioideae]]</div></div>
|volume=Volume 4
|mention_page=page 92, 93, 95
|treatment_page=page 99
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> shrubs, or woody climbers, erect or scrambling, usually freely branching, not cactuslike, resembling other woody plants. <b>Roots</b> diffuse or tuberlike. <b>Stems</b> unsegmented, not ribbed or tuberculate, not especially succulent, becoming woody with age; areoles in leaf axils, circular, bearing 1 to several spines, glochids absent. <b>Spines</b> persistent, usually acicular, straight, less often curving and catclaw-like, smooth, glabrous, epidermis intact, not separating as sheath. <b>Leaves</b> deciduous, alternate, often petiolate [subsessile]; blade broad, flat, fleshy or ± succulent, resembling leaves of other broad-leaved plants. <b>Flowers</b> diurnal, bisexual [or unisexual], in axillary or terminal racemes, corymbs, panicles, or cymose panicles of 1–70+ flowers [solitary or fasciculate], radially symmetric, stalked [subsessile to sessile], ± rotate [broadly campanulate–urceolate]; tepals perigynous or epigynous, flower tube not apparent; ovary subtended by broad leaflike scaly bracts; nectar chamber not apparent. <b>Fruits</b> indehiscent, spheric, pyriform, or broadly depressed-obovate, fleshy; perianth and contained flower parts ± persistent. <b>Seeds</b> 2–150+, black, lenticular to obovate or subreniform, 1.7–7.5 mm, not strophiolate or arillate.</span><!--

-->{{Treatment/Body
|distribution=tropical and subtropical regions in the New World from central Mexico and the West Indies southward to northern Argentina.
|discussion=<p>Genus 1, species 17 (2 species in the flora).</p><!--
--><p>The monogeneric Pereskioideae is the smallest North American subfamily of <i>Cactaceae</i>. Recently, subfam. Maihuenioideae P. Fearn, of South America, was segregated on the basis of DNA and morphologic data. It has long been generally accepted that the cactus family had its origin in a <i>Pereskia</i>-like ancestor, because species of <i>Pereskia</i>, with their broad leaves, woody, barely succulent habits, and relatively primitive-looking flowers, more closely resemble typical, leafy dicotyledonous plants than succulent cacti (A. C. Gibson and P. S. Nobel 1986; B. E. Leuenberger 1986). In addition, species of <i>Pereskia</i> are reported to have the C3 photosynthetic pathway, unlike stem-succulent cacti, which have crassulacean acid metabolism (A. C. Gibson and P. S. Nobel 1986). Recent analyses of DNA data confirm that <i>Pereskia</i> have DNA sequences that are primitive for the family (R. S. Wallace and A. C. Gibson 2002).</p>
|tables=
|references=
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-->{{#Taxon:
name=Cactaceae subfam. Pereskioideae
|author=Michael W. Hawkes
|authority=Engelmann in W. H. Brewer et al.
|rank=subfamily
|parent rank=family
|synonyms=
|basionyms=
|family=Cactaceae
|distribution=tropical and subtropical regions in the New World from central Mexico and the West Indies southward to northern Argentina.
|introduced=true
|reference=None
|publication title=in W. H. Brewer et al., Bot. California
|publication year=1876
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_189.xml
|subfamily=Cactaceae subfam. Pereskioideae
}}<!--

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