Difference between revisions of "Hexastylis virginica"

(Linnaeus) Small

Fl. S.E. U.S., 1131. 1903.

Endemic
Basionym: Asarum virginicum Linnaeus
Synonyms: Asarum memmingeri AsheHexastylis memmingeri (Ashe) Small
Treatment appears in FNA Volume 3.
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--><span class="statement" id="st-d0_s0" data-properties="internode height or length or size;leaf arrangement"><b>Rhizomes:</b> internodes short, leaves crowded at rhizome apex.</span> <span class="statement" id="st-d0_s1" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade shape"><b>Leaf-</b>blade variegate or not, cordate, subcordate, or subreniform.</span> <span class="statement" id="st-d0_s2" data-properties="calyx-tube shape;calyx-tube shape;calyx-tube shape;calyx-tube length;calyx-tube width;ridge prominence;ridge dehiscence or orientation;reticulation height;lobe orientation;lobe orientation;lobe length;lobe width;lobe pubescence"><b>Flowers:</b> calyx-tube cylindric to narrowly cylindric-urceolate, sometimes with prominent transverse ridge just below sinuses, 8-15 × 6-12 mm, inner surface with high reticulations, lobes erect or weakly spreading, 2-4 × 7-9 mm, adaxially puberulent;</span> <span class="statement" id="st-d0_s3" data-properties="">stamen connective not extending beyond pollen-sacs;</span> <span class="statement" id="st-d0_s4" data-properties="">ovary ca. 1/3-inferior;</span> <span class="statement" id="st-d0_s5" data-properties="ovule quantity">ovules 8 per locule;</span> <span class="statement" id="st-d0_s6" data-properties="">styles notched at apex.</span> <span class="statement" id="st-d0_s7" data-properties="style shape;2n chromosome quantity">2n = 26.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Rhizomes:</b> internodes short, leaves crowded at rhizome apex. <b>Leaf</b> blade variegate or not, cordate, subcordate, or subreniform. <b>Flowers</b>: calyx tube cylindric to narrowly cylindric-urceolate, sometimes with prominent transverse ridge just below sinuses, 8-15 × 6-12 mm, inner surface with high reticulations, lobes erect or weakly spreading, 2-4 × 7-9 mm, adaxially puberulent; stamen connective not extending beyond pollen sacs; ovary ca. 1/3-inferior; ovules 8 per locule; styles notched at apex. <b>2n</b> = 26.</span><!--
  
 
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|publication year=1903
 
|publication year=1903
 
|special status=Endemic
 
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_593.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_593.xml
 
|genus=Hexastylis
 
|genus=Hexastylis
 
|species=Hexastylis virginica
 
|species=Hexastylis virginica
|2n chromosome quantity=26
 
|calyx-tube length=8mm;15mm
 
|calyx-tube shape=cylindric;narrowly cylindric-urceolate
 
|calyx-tube width=6mm;12mm
 
|internode height or length or size=short
 
|leaf arrangement=crowded
 
|leaf-blade shape=subreniform;subcordate;subreniform;subcordate;not cordate
 
|lobe length=2mm;4mm
 
|lobe orientation=spreading;erect
 
|lobe pubescence=puberulent
 
|lobe width=7mm;9mm
 
|ovule quantity=8
 
|reticulation height=high
 
|ridge dehiscence or orientation=transverse
 
|ridge prominence=prominent
 
|style shape=notched
 
 
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-->[[Category:Treatment]][[Category:Hexastylis]]
 
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Revision as of 13:44, 27 July 2019

Rhizomes: internodes short, leaves crowded at rhizome apex. Leaf blade variegate or not, cordate, subcordate, or subreniform. Flowers: calyx tube cylindric to narrowly cylindric-urceolate, sometimes with prominent transverse ridge just below sinuses, 8-15 × 6-12 mm, inner surface with high reticulations, lobes erect or weakly spreading, 2-4 × 7-9 mm, adaxially puberulent; stamen connective not extending beyond pollen sacs; ovary ca. 1/3-inferior; ovules 8 per locule; styles notched at apex. 2n = 26.


Phenology: Flowering spring (Apr–Jun).
Habitat: Deciduous and mixed deciduous-conifer forests
Elevation: 0-700 m

Distribution

V3 593-distribution-map.gif

Ky., Md., N.C., Tenn., Va., W.Va.

Discussion

Plants of Hexastylis virginica with small, cylindric-urceolate calices have been treated as a distinct species, H. memmingeri. The two calyx types are often found in the same population, however, so H. memmingeri seems unworthy of taxonomic recognition at any rank.

Prior to the study by H. L. Blomquist (1957), many botanists interpreted Hexastylis virginica in a very broad sense, so old herbarium specimens of many other species of Hexastylis are often annotated as H. virginica.

The Cherokee used Hexastylis virginica medicinally to stop blood from passing (D. E. Moerman 1986, as Asarum virginicum).

Selected References

None.

Lower Taxa

None.
... more about "Hexastylis virginica"
Alan T. Whittemore +  and L.L. Gaddy +
(Linnaeus) Small +
Asarum virginicum +
Ky. +, Md. +, N.C. +, Tenn. +, Va. +  and W.Va. +
0-700 m +
Deciduous and mixed deciduous-conifer forests +
Flowering spring (Apr–Jun). +
Fl. S.E. U.S., +
Asarum memmingeri +  and Hexastylis memmingeri +
Hexastylis virginica +
Hexastylis +
species +