View source for Hexalectris

{{Treatment/ID
|accepted_name=Hexalectris
|accepted_authority=Rafinesque
|publications={{Treatment/Publication
|title=Neogenyton,
|place=4. 1825
|year=1825
}}
|basionyms=
|synonyms=
|hierarchy=Orchidaceae;Orchidaceae subfam. Epidendroideae;Orchidaceae tribe Arethuseae;Orchidaceae (tribe Arethuseae) subtribe Bletiinae;Hexalectris
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orchidaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Orchidaceae subfam. Epidendroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Orchidaceae tribe Arethuseae]]</div><div class="higher-taxon"><small>subtribe</small>[[Orchidaceae (tribe Arethuseae) subtribe Bletiinae]]</div><div class="higher-taxon"><small>genus</small>[[Hexalectris]]</div></div>
|etymology=Greek hex, six, and alectryon, rooster, alluding to six longitudinal fleshy crests on the floral lip
|volume=Volume 26
|mention_page=page 495, 604
|treatment_page=page 603
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, terrestrial, leafless, rootless, mycotrophic, solitary or colonial. <b>Rhizomes</b> branching, articulate, annular, stout. <b>Stems</b> erect, yellowish brown, pink, pinkish red, or reddish purple, glabrous; sheathing bracts 2–5, reduced. <b>Inflorescences</b> racemes, consisting of entire aboveground portion of plant. <b>Flowers</b> 2–25, resupinate, tan, brown, magenta, purple, or maroon; dorsal sepal lanceolate; lateral sepals falcate to lanceolate, base distinct and free; petals linear, lanceolate, or elliptic; lip 3-lobed; lamellae 3–5(–7), prominent; column arcuate, apex narrowly winged; anthers terminal, white, yellow, or maroon; pollinia 8, firm, in 4 pairs, 2 pairs per anther cell; stigma subterminal. <b>Fruits</b> capsules, pendent, ellipsoid; seeds 0.5–0.7 mm.</span><!--

-->{{Treatment/Body
|distribution=Neotemperate and neotropical;mostly Mexican.
|discussion=<p>Species 7 (5 in the flora).</p><!--
--><p>Rafinesque’s choice of the name <i>Hexalectris</i> was probably inappropriate because plants in the genus tend to have five or seven crests on the lip (C. A. Luer 1975; J. Liggio and A. Liggio 1999).</p><!--
--><p>Examination of material, both living and preserved, suggests that a species complex exists that involves <i>Hexalectris nitida</i>, <i>H. revoluta</i>, <i>H. spicata</i> in the broad sense, and the Mexican and Guatemalan <i>H. parviflora</i>. This is a complicated group, some plants of each species resembling plants of another species within the complex. <i>Hexalectris spicata </i>var.<i> arizonica</i> possibly is a hybrid-derived taxon from <i>H. nitida</i> and <i>H. spicata </i>var.<i> spicata</i>, or the latter species and <i>H. revoluta</i> (P. M. Catling and V. S. Engel 1993), although plants with cleistogamous flowers of <i>H. nitida</i> are often similar to <i>H. spicata </i>var.<i> arizonica</i>. A number of recent significant range extensions have been noted for <i>H. nitida</i> (V. S. Engel 1987), <i>H. revoluta</i> (R. A. Coleman), and <i>H. warnockii</i> (V. S. Engel 1987; G. A. Salazar-Chavez 1991), suggesting that members of this genus lurk unsuspected over a very large geographic area; they may be more common than currently assumed. Because relatively few herbarium collections have been made for this genus, particularly in the western United States and Mexico, it is clear that more has yet to be understood about the biology and taxonomy of the members of this complicated genus. Based on plastid DNA sequences, it has been estimated that <i>Hexalectris</i> is most closely related to the neotropical genera <i>Basiphyllaea</i> and <i>Bletia</i> (D. H. Goldman 2000; D. H. Goldman et al. 2001).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Lateral sepals 7–12 mm; lip 7–11 mm; column 6–8 mm; anthers yellow.
|[[Hexalectris nitida|Hexalectris nitida]]
|-id=key-0-1
|1
|Lateral sepals longer than 12 mm; lip 10–20 mm; column 9–18 mm; anthers whitish.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Petals and sepals dark purple to maroon, not recurved; lip with 5 yellow-margined, undulate lamellae; anthers reddish to maroon.
|[[Hexalectris warnockii|Hexalectris warnockii]]
|-id=key-0-2
|2
|Petals yellowish brown, pinkish brown, or pink to rose pink, weakly to strongly recurved; lip with 3–7 white or purple, smooth, ± straight lamellae; anthers white to yellow.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Lip with 5–7 typically purple to white lamellae; lip shallowly 3-lobed, fissure less than 2 mm deep.
|[[Hexalectris spicata|Hexalectris spicata]]
|-id=key-0-3
|3
|Lip with 3–7 white to yellow lamellae; lip deeply 3-lobed, fissure more than 3 mm deep.
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Petals and sepals pink to crimson, slightly recurved; lip with 5 white lamellae.
|[[Hexalectris grandiflora|Hexalectris grandiflora]]
|-id=key-0-4
|4
|Petals and sepals pinkish brown, strongly recurved; lip with 3–7 obscure white to yellow lamellae.
|[[Hexalectris revoluta|Hexalectris revoluta]]
|}
</div></div><!--

-->{{#Taxon:
name=Hexalectris
|author=Douglas H. Goldman;Ronald A. Coleman;Lawrence K. Magrath;Paul M. Catling
|authority=Rafinesque
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Orchidaceae
|distribution=Neotemperate and neotropical;mostly Mexican.
|reference=None
|publication title=Neogenyton,
|publication year=1825
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V26/V26_1231.xml
|subfamily=Orchidaceae subfam. Epidendroideae
|tribe=Orchidaceae tribe Arethuseae
|subtribe=Orchidaceae (tribe Arethuseae) subtribe Bletiinae
|genus=Hexalectris
}}<!--

-->[[Category:Treatment]][[Category:Orchidaceae (tribe Arethuseae) subtribe Bletiinae]]