View source for Acoraceae ← Acoraceae You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Acoraceae |accepted_authority=Martinov |publications= |common_names=Sweet-Flag Family |basionyms= |synonyms= |hierarchy=Acoraceae |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Acoraceae]]</div></div> |volume=Volume 22 |mention_page= |treatment_page=page 124 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism growth form;oil odor"><b>Herbs,</b> perennial, wetland, usually with aromatic oil, especially in rhizomes.</span> <span class="statement" id="st-d0_s1" data-properties="rhizome orientation;rhizome growth form or orientation;rhizome growth form or orientation;rhizome architecture"><b>Rhizomes </b>horizontal, creeping at or near surface, branched.</span> <span class="statement" id="st-d0_s2" data-properties="stem growth form;rhizome architecture"><b>Stems </b>repent, branched rhizomes.</span> <span class="statement" id="st-d0_s3" data-properties="cataphyll presence"><b>Cataphylls </b>absent.</span> <span class="statement" id="st-d0_s4" data-properties=""><b>Leaves </b>not differentiated into petiole and blade, equitant, sword-shaped, larger than 1.5 cm;</span> <span class="statement" id="st-d0_s5" data-properties="leaf variability;leaf arrangement;leaf shape;leaf some measurement;leaf arrangement">venation parallel along length of leaf.</span> <span class="statement" id="st-d0_s6" data-properties="axis shape;distal leaf architecture"><b>Inflorescences:</b> spadices, from 3-angled axis (peduncle fused with proximal portion of sympodial leaf, i.e., leaf encircling terminal inflorescence), distal sympodial leaf extending beyond spadix;</span> <span class="statement" id="st-d0_s7" data-properties="spathe derivation;spathe presence">true spathe absent;</span> <span class="statement" id="st-d0_s8" data-properties="spadix shape;spadix shape;apex shape">spadix nearly cylindric, tapering, apex obtuse.</span> <span class="statement" id="st-d0_s9" data-properties="flower reproduction"><b>Flowers </b>bisexual;</span> <span class="statement" id="st-d0_s10" data-properties="tepal quantity">tepals 6;</span> <span class="statement" id="st-d0_s11" data-properties="">stamens 6, distinct;</span> <span class="statement" id="st-d0_s12" data-properties="stamen quantity;stamen fusion;stamen quantity;stamen architecture or structure in adjective form;stamen architecture">ovariesy 1, (1–) 3-locular, sessile;</span> <span class="statement" id="st-d0_s13" data-properties="stigma architecture;stigma size">stigmas sessile (styles essentially absent), minute.</span> <span class="statement" id="st-d0_s14" data-properties=""><b>Fruits </b>berries;</span> <span class="statement" id="st-d0_s15" data-properties="pericarp width;pericarp texture">pericarp thin, leathery.</span> <span class="statement" id="st-d0_s16" data-properties="seed atypical quantity;seed quantity"><b>Seeds </b>1–6 (–14), from apex of locule.</span><!-- -->{{Treatment/Body |distribution=Temperate Northern Hemisphere;tropical Asia at higher elevations;and sporadically into Southern Hemisphere |discussion=<p>Acorus historically was recognized as an aberrant genus within Araceae, but much evidence supports its treatment as a separate family and the removal of this family from Arales (M. H. Grayum 1987). Other than the absence of a close association with Arales, the phylogenetic affinities of Acoraceae remain unclear. Evidence based on DNA sequences fails to show any close relationships between Acorus and other genera, and instead supports Acorus as the oldest extant lineage of monocotyledons (M. R. Duvall et al. 1993).</p><!-- --><p>The removal of Acorus from Araceae is supported by the absence of a spathe and the unique vasculature of the structure traditionally interpreted as a spathe (T. S. Ray 1987). The structure that has been called a spathe in Acorus is not morphologically equivalent to the spathe of Araceae; instead it is interpreted as the distal part of the sympodial leaf. The proximal part of the sympodial leaf is adnate to the peduncle, forming a 3-angled axis that bears the inflorescence.</p><!-- --><p>Genera 1, species 3–6 (2 species in the flora).</p> |tables= |references={{Treatment/Reference |id=grayum1987a |text=Grayum, M. H. 1987. A summary of evidence and arguments supporting the removal of Acorus from the Araceae. Taxon 36: 723--729. }}{{Treatment/Reference |id=thompson1995b |text=Thompson, S. A. 1995. Systematics and Biology of the Araceae and Acoraceae of Temperate North America. Ph.D. dissertation. University of Illinois. Urbana-Champaign. }} }}<!-- --><!-- -->{{#Taxon: name=Acoraceae |author=Sue A. Thompson |authority=Martinov |rank=family |parent rank= |synonyms= |basionyms= |family=Acoraceae |illustrator=John Myers |illustration copyright=Flora of North America Association |distribution=Temperate Northern Hemisphere;tropical Asia at higher elevations;and sporadically into Southern Hemisphere |reference=grayum1987a;thompson1995b |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/62857cf6bca5c4637d27b113da92d27dbf9962f4/V22/V22_275.xml |apex shape=obtuse |axis shape=3-angled |cataphyll presence=absent |distal leaf architecture=sympodial |flower reproduction=bisexual |leaf arrangement=parallel;equitant |leaf shape=sword--shaped |leaf some measurement=1.5 |leaf variability=not differentiated |oil odor=aromatic |pericarp texture=leathery |pericarp width=thin |rhizome architecture=branched;branched |rhizome growth form or orientation=near surface;creeping |rhizome orientation=horizontal |seed atypical quantity=6;14 |seed quantity=1;6 |spadix shape=tapering;cylindric |spathe derivation=true |spathe presence=absent |stamen architecture=sessile |stamen architecture or structure in adjective form=(1-)3-locular |stamen fusion=distinct |stamen quantity=1;6 |stem growth form=repent |stigma architecture=sessile |stigma size=minute |tepal quantity=6 |whole_organism duration=perennial |whole_organism growth form=herb }}<!-- -->[[Category:Treatment]] Templates used on this page: Acoraceae Illustrations (view source) Template:Acoraceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Reference (view source) Return to Acoraceae.