View source for Ranunculus auricomus

{{Treatment/ID
|accepted_name=Ranunculus auricomus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 551. 1753
|year=1753
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Ranunculus auricomus subsp. boecheri
|authority=Fagerström & G. Kvist
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Ranunculus auricomus subsp. glabratus
|authority=(Lynge) Fagerström & G. Kvist
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Ranunculus auricomus subsp. hartzii
|authority=Fagerström & G. Kvist
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Ranunculus auricomus var. glabratus
|authority=Lynge
|rank=variety
}}
|hierarchy=Ranunculaceae;Ranunculus;Ranunculus subg. Ranunculus;Ranunculus sect. Epirotes;Ranunculus auricomus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ranunculaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ranunculus]]</div><div class="higher-taxon"><small>subgenus</small>[[Ranunculus subg. Ranunculus]]</div><div class="higher-taxon"><small>section</small>[[Ranunculus sect. Epirotes]]</div><div class="higher-taxon"><small>species</small>[[Ranunculus auricomus]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect or ascending, 12-30 cm, glabrous, each with 1-4 flowers. <b>Roots</b> filiform, 0.2-0.6 mm thick. <b>Basal</b> leaves persistent, blades reniform, 3-parted, 1.2-2.8 × 1.6-4.6 cm, segments again lobed or parted, base cordate, margins toothed, apices of segments rounded in outline. <b>Flowers</b>: pedicels appressed-pubescent; receptacle finely canescent; sepals 4-7 × 2.5-4 mm, abaxially sparsely pilose, hairs colorless; petals 5, 6-10(-15) × 5-9 mm; nectary scale glabrous. <b>Heads</b> of achenes globose to short-ovoid, 5-8 × 5-6 mm; achenes 2-2.2 × 1.8-2 mm, glabrous or sparsely and finely canescent distally; beak lanceolate, weakly to strongly curved, 1.2-2 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jul–Aug).
|habitat=Moist arctic shrubland or herbland
|elevation=100-500 m
|distribution=Greenland;Eurasia.
|discussion=<p><i>Ranunculus auricomus</i> is predominantly apomictic, with irregular meiosis. Different European races may show a variety of characteristics not found in Greenland material (pilose stems, undivided, crenate-dentate leaves, densely canescent achenes, and glabrous receptacles). T. W. Böcher et al. (1968) recognized three distinct races from Greenland, distinguished by minor differences in stature and branching of the plants, width of cauline leaf segments, and indument of achenes. Those races, which were evidently based on very few collections, were named as subspecies by L. Fagerström and G. Kvist (1983). More ample material collected during the 1980s does not support the Fagerström and Kvist classification. Except for stature and branching, which both depend on the general vigor of the plants, these characteristics are poorly correlated with one another and with geographic place of collection. Cauline leaf segments sometimes vary in width within a single collection, and achenes of the Ymer Island collection that they referred to <i>R. auricomus</i> subsp. glabratus are sparsely canescent, not glabrous as stated. These observations, together with the uniformity of indument, leaf shape, and receptacle and achene morphology in the Greenland populations, suggest that they are best considered a single race within the variable apomictic complex comprising <i>R. auricomus</i> in the broad sense.</p><!--
--><p>T. G. Tutin and J. R. Akeroyd (1993) treated <i>Ranunculus auricomus</i> var. glabratus as a synonym of R. affinis (= <i>R. pedatifidus </i>var.<i> affinis</i>; see above). The characteristics in that key and description (leaves palmately 3-5-lobed, achenes in globose heads) do not match American material of <i>R. pedatifidus </i>var.<i> affinis</i>.</p>
|tables=
|references={{Treatment/Reference
|id=fagerstrom1983a
|text=L. Fagerström and G. Kvist. 1983. Vier neue arktische und subarktische Ranunculus auricomus-Sippen. Ann. Bot. Fenn. 20: 237-243.
}}
}}<!--

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-->{{#Taxon:
name=Ranunculus auricomus
|authority=Linnaeus
|rank=species
|parent rank=section
|synonyms=Ranunculus auricomus subsp. boecheri;Ranunculus auricomus subsp. glabratus;Ranunculus auricomus subsp. hartzii;Ranunculus auricomus var. glabratus
|basionyms=
|family=Ranunculaceae
|phenology=Flowering summer (Jul–Aug).
|habitat=Moist arctic shrubland or herbland
|elevation=100-500 m
|distribution=Greenland;Eurasia.
|reference=fagerstrom1983a
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_432.xml
|genus=Ranunculus
|subgenus=Ranunculus subg. Ranunculus
|section=Ranunculus sect. Epirotes
|species=Ranunculus auricomus
}}<!--

-->[[Category:Treatment]][[Category:Ranunculus sect. Epirotes]]