familyCactaceae
subfamilyCactaceae subfam. Cactoideae
genusEchinomastus
speciesEchinomastus intertextus
Difference between revisions of "Echinomastus intertextus"
Cact. 3: 149. 1922.
Illustrated
Basionym: Echinocactus intertextus Engelmann Proc. Amer. Acad. Arts 3: 277. 1856
Synonyms: Neolloydia intertexta (Engelmann) L. D. Benson Sclerocactus intertextus (Engelmann) N. P. Taylor
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|year=1922 | |year=1922 | ||
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| − | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Echinocactus intertextus | |name=Echinocactus intertextus | ||
|authority=Engelmann | |authority=Engelmann | ||
| + | |rank=species | ||
| + | |publication_title=Proc. Amer. Acad. Arts | ||
| + | |publication_place=3: 277. 1856 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Neolloydia intertexta | |name=Neolloydia intertexta | ||
|authority=(Engelmann) L. D. Benson | |authority=(Engelmann) L. D. Benson | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Sclerocactus intertextus | |name=Sclerocactus intertextus | ||
|authority=(Engelmann) N. P. Taylor | |authority=(Engelmann) N. P. Taylor | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Echinomastus;Echinomastus intertextus | |hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Echinomastus;Echinomastus intertextus | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>5–17(–20) × 3–10 cm; ribs ca. 13; areoles (5–)9–11 mm apart along ribs; areolar glands absent. <b>Spines</b> 20–29 per areole, dull tan to pale gray, pinkish, or reddish brown (rarely dull white or straw colored), usually tipped reddish brown; radial spines 13–25 per areole; abaxial (shortest) radial spine 5–13 × 0.2–0.4 mm; adaxial and lateral (longest) radial spines 9–20 mm; central spines (3–)4 per areole, abaxial central spine porrect, straight or nearly so, (0–)0.5–14(–20) mm; others 10–18(–20) × 0.2–0.5 mm. <b>Flowers</b> 2.5–3(–3.8) × 2.5–3(–3.8) cm; inner tepals silvery white to pale lavender pink (rarely white with pale pink midstripes), 1.3–2.5 cm × (1–)3–5.5 mm; stigma lobes bright red or pink (rarely white). <b>Fruits</b> immediately dehiscent through wide basal pore (= circumscissile abscission scar), ± spheric, 6–15 × (6–)8–15 mm. <b>2n</b> = 22.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution= | + | |distribution=Ariz.;N.Mex.;Tex.;n Mexico. |
|discussion=<p>Varieties 2 (2 in the flora).</p><!-- | |discussion=<p>Varieties 2 (2 in the flora).</p><!-- | ||
| − | --><p>The mature part of the stem of Echinomastus intertextus is sometimes positioned above ground level on a stalklike proximal part of the stem, which often remains narrowly cylindric while the distal part broadens to the normal diameter of the adult stem. This contrasts with the other species of Echinomastus, which lack a stalklike stem portion between the roots and mature part of the stem. Many populations of E. intertextus are intermediate between the two varieties, i.e., they contain a wide range of central spine lengths. Consequently, sampling error (usually only one specimen from each population) created the illusion of extensive sympatry between long-spined and short-spined varieties.</p> | + | --><p>The mature part of the stem of <i>Echinomastus intertextus</i> is sometimes positioned above ground level on a stalklike proximal part of the stem, which often remains narrowly cylindric while the distal part broadens to the normal diameter of the adult stem. This contrasts with the other species of <i>Echinomastus</i>, which lack a stalklike stem portion between the roots and mature part of the stem. Many populations of <i>E. intertextus</i> are intermediate between the two varieties, i.e., they contain a wide range of central spine lengths. Consequently, sampling error (usually only one specimen from each population) created the illusion of extensive sympatry between long-spined and short-spined varieties.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Echinomastus intertextus | name=Echinomastus intertextus | ||
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|authority=(Engelmann) Britton & Rose | |authority=(Engelmann) Britton & Rose | ||
|rank=species | |rank=species | ||
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|basionyms=Echinocactus intertextus | |basionyms=Echinocactus intertextus | ||
|family=Cactaceae | |family=Cactaceae | ||
| − | |distribution= | + | |distribution=Ariz.;N.Mex.;Tex.;n Mexico. |
|reference=None | |reference=None | ||
|publication title=Cact. | |publication title=Cact. | ||
|publication year=1922 | |publication year=1922 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_368.xml |
|subfamily=Cactaceae subfam. Cactoideae | |subfamily=Cactaceae subfam. Cactoideae | ||
|genus=Echinomastus | |genus=Echinomastus | ||
|species=Echinomastus intertextus | |species=Echinomastus intertextus | ||
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| + | [[Category:Revised Since Print]] | ||
Latest revision as of 18:01, 6 November 2020
Stems 5–17(–20) × 3–10 cm; ribs ca. 13; areoles (5–)9–11 mm apart along ribs; areolar glands absent. Spines 20–29 per areole, dull tan to pale gray, pinkish, or reddish brown (rarely dull white or straw colored), usually tipped reddish brown; radial spines 13–25 per areole; abaxial (shortest) radial spine 5–13 × 0.2–0.4 mm; adaxial and lateral (longest) radial spines 9–20 mm; central spines (3–)4 per areole, abaxial central spine porrect, straight or nearly so, (0–)0.5–14(–20) mm; others 10–18(–20) × 0.2–0.5 mm. Flowers 2.5–3(–3.8) × 2.5–3(–3.8) cm; inner tepals silvery white to pale lavender pink (rarely white with pale pink midstripes), 1.3–2.5 cm × (1–)3–5.5 mm; stigma lobes bright red or pink (rarely white). Fruits immediately dehiscent through wide basal pore (= circumscissile abscission scar), ± spheric, 6–15 × (6–)8–15 mm. 2n = 22.
Distribution
Ariz., N.Mex., Tex., n Mexico.
Discussion
Varieties 2 (2 in the flora).
The mature part of the stem of Echinomastus intertextus is sometimes positioned above ground level on a stalklike proximal part of the stem, which often remains narrowly cylindric while the distal part broadens to the normal diameter of the adult stem. This contrasts with the other species of Echinomastus, which lack a stalklike stem portion between the roots and mature part of the stem. Many populations of E. intertextus are intermediate between the two varieties, i.e., they contain a wide range of central spine lengths. Consequently, sampling error (usually only one specimen from each population) created the illusion of extensive sympatry between long-spined and short-spined varieties.
Selected References
None.
Key
| 1 | Radial spines and adaxial central spines closely appressed; abaxial, porrect central spine 0.5-4(-5) mm | Echinomastus intertextus var. intertextu |
| 1 | Radial and adaxial central spines diffusely spreading; abaxial, porrect central spine 4-15(-20) mm | Echinomastus intertextus var. dasyacanth |