View source for Bartonia ← Bartonia 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=Bartonia |accepted_authority=Muhlenberg ex Willdenow |publications={{Treatment/Publication |title=Ges. Naturf. Freunde Berlin Neue Schriften |place=3: 444. 1801 |year=1801 |other_info_on_pub=name conserved }} |special_status={{Treatment/ID/Special_status |code=E |label=Endemic }} |basionyms= |synonyms= |hierarchy=Gentianaceae;Bartonia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Gentianaceae]]</div><div class="higher-taxon"><small>genus</small>[[Bartonia]]</div></div> |etymology=For Benjamin Smith Barton, 1766–1815, American botanist |volume=Volume 14 |mention_page= |treatment_page= }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>annual or perennial, weakly chlorophyllous, with stems and leaves yellowish green or purplish, glabrous. <b>Leaves</b> cauline, alternate, subopposite, or opposite, scalelike. <b>Inflorescences</b> dichasial or racemoid cymes, reduced thyrses, or solitary flowers. <b>Flowers</b> 4-merous; calyx lobed nearly to base, or some or all lobes proximally connate; corolla white or greenish white to pale yellow, yellowish green, to green, sometimes purple-tinged, narrowly campanulate, glabrous, lobes longer than tube, margins entire or erose, plicae between lobes absent, spurs absent; stamens inserted in corolla sinuses; anthers distinct; ovary sessile or subsessile; style short and stout or absent; stigma 2-lobed or decurrent along distal portion of sutures; nectaries absent. <b>Capsules</b> compressed-cylindric. <b>x</b> = 11, 13.</span><!-- -->{{Treatment/Body |distribution=c;e North America. |discussion=<p>Species 3 (3 in the flora).</p><!-- --><p>Plants cultivated as Bartonia are species of Mentzelia (Loasaceae), to which the homonym Bartonia Sims of 1804 was formerly applied.</p><!-- --><p>Bartonia has a reduced root system, minute leaves, and stems that are sometimes weakly chlorophyllous, and is partially mycotrophic (D. D. Cameron and J. F. Bolin 2010). Bartonia species have been assumed to be annuals, from the appearance of the basal and underground parts, but this has been questioned.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Leaves ± evenly spaced; corollas 4.8–11 mm, lobed nearly to base, lobes narrowly spatulate-obovate to elliptic; flowering winter–spring. |[[Bartonia verna|Bartonia verna]] |-id=key-0-1 |1 |Leaves crowded near base of stem, distally widely separated; corollas 1.9–6.2 mm, lobed 0.5–0.8 times their length, lobes oblong or oblong-lanceolate; flowering summer–fall. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Corolla lobe margins distally erose-serrate, apices rounded to abruptly acute, mucronate. |[[Bartonia virginica|Bartonia virginica]] |-id=key-0-2 |2 |Corolla lobe margins entire, apices acute to acuminate, not mucronate. |[[Bartonia paniculata|Bartonia paniculata]] |} </div></div><!-- -->{{#Taxon: name=Bartonia |author=James S. Pringle |authority=Muhlenberg ex Willdenow |rank=genus |parent rank=family |synonyms= |basionyms= |family=Gentianaceae |distribution=c;e North America. |reference=None |publication title=Ges. Naturf. Freunde Berlin Neue Schriften |publication year=1801 |special status=Endemic |source xml= |genus=Bartonia }}<!-- -->[[Category:Treatment]][[Category:Gentianaceae]] Templates used on this page: Template:Gentianaceae (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/ID/Special status (view source) Template:Treatment/Publication (view source) Return to Bartonia.