Difference between revisions of "Grusonia schottii"
Phytologia 26: 176. 1973.
Common names: Clav ellina
Basionym: Opuntia schottii Engelmann Proc. Amer. Acad. Arts 3: 304. 1856
Synonyms: Corynopuntia schottii (Engelmann) F. M. Knuth
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|common_names=Clav ellina | |common_names=Clav ellina | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Opuntia schottii | |name=Opuntia schottii | ||
|authority=Engelmann | |authority=Engelmann | ||
| + | |rank=species | ||
| + | |publication_title=Proc. Amer. Acad. Arts | ||
| + | |publication_place=3: 304. 1856 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Corynopuntia schottii | |name=Corynopuntia schottii | ||
|authority=(Engelmann) F. M. Knuth | |authority=(Engelmann) F. M. Knuth | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Grusonia;Grusonia schottii | |hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Grusonia;Grusonia schottii | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> forming mats, 7.5–9 cm. <b>Roots</b> diffuse. <b>Stem</b> segments clavate, (2–)3.5–6.5 × (1.5–)2–3 cm; tubercles 8–20 mm, 1–3.5 times longer than wide, not or little obscured by spines; areoles 2.5–4 mm in diam.; wool white to yellowish. <b>Spines</b> 11–17 per areole, mostly in distal areoles, spreading to deflexed, white, tan, or red-brown, longest 3–7 cm; major 3 abaxial spines divergent or deflexed, tan to brown, flattened to angular-flattened, sharp edged; major 2–3 adaxial spines ascending-divergent, red-brown, subterete to angular-flattened. <b>Glochids</b> adaxial in areole, yellowish white to yellow, to 7 mm. <b>Flowers</b>: inner tepals bright yellow, ± 20 mm; filaments yellow; style cream; stigma lobes cream or tinged pink. <b>Fruits</b> yellow, cylindric to ellipsoid, 30–50 × 10–30 mm, fleshy, spineless (sometimes with 3–6 white or red spines to 6 mm), yellow glochidiate; areoles 25–35. <b>Seeds</b> yellowish white to yellow, 4.5–5 × 3.5 mm, smooth. <b>2n</b> = 44.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| + | |phenology=Flowering late spring–early summer (Jun–Jul). | ||
|habitat=Chihuahuan Desert, sandy or gravelly flats, low hills | |habitat=Chihuahuan Desert, sandy or gravelly flats, low hills | ||
|elevation=700-1200 m | |elevation=700-1200 m | ||
|distribution=Tex.;Mexico (Coahuila). | |distribution=Tex.;Mexico (Coahuila). | ||
| − | |discussion=<p>Plants restricted to clay soils in Big Bend National Park, Brewster County, Texas, with more spines per areole than Grusonia schottii, have been named G. densispina (Ralston & Hilsenbeck) Pinkava. Much additional study is required to determine the relationship between such plants and G. schottii.</p> | + | |discussion=<p>Plants restricted to clay soils in Big Bend National Park, Brewster County, Texas, with more spines per areole than <i>Grusonia schottii</i>, have been named G. densispina (Ralston & Hilsenbeck) Pinkava. Much additional study is required to determine the relationship between such plants and <i>G. schottii</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Grusonia schottii | name=Grusonia schottii | ||
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|authority=(Engelmann) H. Robinson | |authority=(Engelmann) H. Robinson | ||
|rank=species | |rank=species | ||
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|basionyms=Opuntia schottii | |basionyms=Opuntia schottii | ||
|family=Cactaceae | |family=Cactaceae | ||
| + | |phenology=Flowering late spring–early summer (Jun–Jul). | ||
|habitat=Chihuahuan Desert, sandy or gravelly flats, low hills | |habitat=Chihuahuan Desert, sandy or gravelly flats, low hills | ||
|elevation=700-1200 m | |elevation=700-1200 m | ||
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|publication year=1973 | |publication year=1973 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_233.xml |
|subfamily=Cactaceae subfam. Opuntioideae | |subfamily=Cactaceae subfam. Opuntioideae | ||
|genus=Grusonia | |genus=Grusonia | ||
|species=Grusonia schottii | |species=Grusonia schottii | ||
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-->[[Category:Treatment]][[Category:Grusonia]] | -->[[Category:Treatment]][[Category:Grusonia]] | ||
Latest revision as of 22:57, 5 November 2020
Shrubs, forming mats, 7.5–9 cm. Roots diffuse. Stem segments clavate, (2–)3.5–6.5 × (1.5–)2–3 cm; tubercles 8–20 mm, 1–3.5 times longer than wide, not or little obscured by spines; areoles 2.5–4 mm in diam.; wool white to yellowish. Spines 11–17 per areole, mostly in distal areoles, spreading to deflexed, white, tan, or red-brown, longest 3–7 cm; major 3 abaxial spines divergent or deflexed, tan to brown, flattened to angular-flattened, sharp edged; major 2–3 adaxial spines ascending-divergent, red-brown, subterete to angular-flattened. Glochids adaxial in areole, yellowish white to yellow, to 7 mm. Flowers: inner tepals bright yellow, ± 20 mm; filaments yellow; style cream; stigma lobes cream or tinged pink. Fruits yellow, cylindric to ellipsoid, 30–50 × 10–30 mm, fleshy, spineless (sometimes with 3–6 white or red spines to 6 mm), yellow glochidiate; areoles 25–35. Seeds yellowish white to yellow, 4.5–5 × 3.5 mm, smooth. 2n = 44.
Phenology: Flowering late spring–early summer (Jun–Jul).
Habitat: Chihuahuan Desert, sandy or gravelly flats, low hills
Elevation: 700-1200 m
Distribution
Tex., Mexico (Coahuila).
Discussion
Plants restricted to clay soils in Big Bend National Park, Brewster County, Texas, with more spines per areole than Grusonia schottii, have been named G. densispina (Ralston & Hilsenbeck) Pinkava. Much additional study is required to determine the relationship between such plants and G. schottii.
Selected References
None.
Lower Taxa
None.