Difference between revisions of "Pilosocereus robinii"

(Lemaire) Byles & G. D. Rowley

Cact. Succ. J. Gr. Brit. 19: 67. 1957.

Common names: Key tree cactus
IllustratedConservation concern
Basionym: Pilocereus robinii Lemaire Ill. Hort. 9: 74. 1864 (as robini)
Synonyms: Cephalocereus deeringii Small Cephalocereus keyensis Britton & Rose Cereus robinii (Lemaire) L. D. Benson Cereus robinii var. deeringii (Small) L. D. Benson Cereus robinii var. keyensis (Britton & Rose) L. D. Bens on ex R. W. Long & Lakela Pilosocereus deeringii Pilosocereus keyensis Pilosocereus robinii var. deeringii (Small) Kartesz & Gandhi
Treatment appears in FNA Volume 4. Treatment on page 180. Mentioned on page 181.
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}}
 
}}
 
|common_names=Key tree cactus
 
|common_names=Key tree cactus
|basionyms={{Treatment/ID/Synonym
+
|special_status={{Treatment/ID/Special_status
 +
|code=F
 +
|label=Illustrated
 +
}}{{Treatment/ID/Special_status
 +
|code=C
 +
|label=Conservation concern
 +
}}
 +
|basionyms={{Treatment/ID/Basionym
 
|name=Pilocereus robinii
 
|name=Pilocereus robinii
 
|authority=Lemaire
 
|authority=Lemaire
 +
|rank=species
 +
|publication_title=Ill. Hort.
 +
|publication_place=9: 74. 1864 (as robini)
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Cephalocereus deeringii
 
|name=Cephalocereus deeringii
 
|authority=Small
 
|authority=Small
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Cephalocereus keyensis
 
|name=Cephalocereus keyensis
 
|authority=Britton & Rose
 
|authority=Britton & Rose
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Cereus robinii
 
|name=Cereus robinii
 
|authority=(Lemaire) L. D. Benson
 
|authority=(Lemaire) L. D. Benson
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Cereus robinii var. deeringii
 
|name=Cereus robinii var. deeringii
 
|authority=(Small) L. D. Benson
 
|authority=(Small) L. D. Benson
}}{{Treatment/ID/Synonym
+
|rank=variety
 +
}} {{Treatment/ID/Synonym
 
|name=Cereus robinii var. keyensis
 
|name=Cereus robinii var. keyensis
 
|authority=(Britton & Rose) L. D. Bens on ex R. W. Long & Lakela
 
|authority=(Britton & Rose) L. D. Bens on ex R. W. Long & Lakela
}}{{Treatment/ID/Synonym
+
|rank=variety
 +
}} {{Treatment/ID/Synonym
 
|name=Pilosocereus deeringii
 
|name=Pilosocereus deeringii
|authority=unknown
+
|authority=
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Pilosocereus keyensis
 
|name=Pilosocereus keyensis
|authority=unknown
+
|authority=
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Pilosocereus robinii var. deeringii
 
|name=Pilosocereus robinii var. deeringii
 
|authority=(Small) Kartesz & Gandhi
 
|authority=(Small) Kartesz & Gandhi
 +
|rank=variety
 
}}
 
}}
 
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Pilosocereus;Pilosocereus robinii
 
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Pilosocereus;Pilosocereus robinii
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="plant orientation;branch count;branch arrangement;crown size or width"><b>Plants </b>erect, normally with few–many, closely parallel branches forming a narrow crown.</span> <span class="statement" id="st-d0_s1" data-properties="stem coloration;stem coloration;stem coloration;stem coloration;stem coloration;stem coloration;stem coloration;stem coloration;stem coloration;stem coloration"><b>Stems </b>light to deep green, or blue-green especially when young;</span> <span class="statement" id="st-d0_s2" data-properties="rib count">ribs 9–13;</span> <span class="statement" id="st-d0_s3" data-properties="areole pubescence">areoles copiously hairy;</span> <span class="statement" id="st-d0_s4" data-properties="hair duration;hair duration;hair duration;hair length or size;hair height or length or size">hairs deciduous to persistent, long or short.</span> <span class="statement" id="st-d0_s5" data-properties="spine count"><b>Spines </b>9–31 per areole;</span> <span class="statement" id="st-d0_s6" data-properties="longest spine some measurement">longest spines 10 mm.</span> <span class="statement" id="st-d0_s7" data-properties="flower shape;flower some measurement"><b>Flowers </b>campanulate, 5–6 cm;</span> <span class="statement" id="st-d0_s8" data-properties="outer tepal coloration;outer tepal shape;outer tepal shape;outer tepal shape;midstripe coloration;apex shape;apex shape;apex shape">outer tepals light green with brownish midstripes, ovate to obovate, apex acute to obtuse;</span> <span class="statement" id="st-d0_s9" data-properties="inner tepal coloration">inner tepals white;</span> <span class="statement" id="st-d0_s10" data-properties="outermost tepal shape;outermost tepal shape;outermost tepal shape;innermost tepal shape;innermost tepal shape;innermost tepal shape">outermost ovate to elliptic, innermost oblanceolate to broadly linear.</span> <span class="statement" id="st-d0_s11" data-properties="scale count"><b>Fruits </b>sometimes with 1–2 scales.</span> <span class="statement" id="st-d0_s12" data-properties="seed some measurement"><b>Seeds </b>2 mm.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect, normally with few–many, closely parallel branches forming a narrow crown. <b>Stems</b> light to deep green, or blue-green especially when young; ribs 9–13; areoles copiously hairy; hairs deciduous to persistent, long or short. <b>Spines</b> 9–31 per areole; longest spines 10 mm. <b>Flowers</b> campanulate, 5–6 cm; outer tepals light green with brownish midstripes, ovate to obovate, apex acute to obtuse; inner tepals white; outermost ovate to elliptic, innermost oblanceolate to broadly linear. <b>Fruits</b> sometimes with 1–2 scales. <b>Seeds</b> 2 mm.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
 +
|phenology=Flowering (Mar-)Aug–Sep; fruiting year-round.
 
|habitat=Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock
 
|habitat=Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock
 
|elevation=0-10 m
 
|elevation=0-10 m
 
|distribution=Fla.;Mexico;West Indies.
 
|distribution=Fla.;Mexico;West Indies.
 
|discussion=<p>Of conservation concern.</p><!--
 
|discussion=<p>Of conservation concern.</p><!--
--><p>In the flora, Pilosocereus robinii has been known historically from Key West to Key Largo, Florida, but is now restricted to Upper and Lower Matecumbe Keys, Long Key, and Big Pine Key. Pilosocereus keyensis and P. deeringii were originally described (as Cephalocereus species) from Key West and Lower Matecumbe Key, respectively, where they supposedly were endemic. Recent authors (D. F. Austin 1984; A. N. Lima and R. N. Adams 1996; R. P. Wunderlin and B. F. Hansen, www.plantatlas.usf.edu) have considered them to be within the range of variation of P. robinii. Although E. F. Anderson (2001) treated all of those named variants and others as merely insular forms of P. polygonus (Lamarck) Byles & G. D. Rowley, such treatment remains to be supported by a populational study throughout the West Indian range of the taxa.</p><!--
+
--><p>In the flora, <i>Pilosocereus robinii</i> has been known historically from Key West to Key Largo, Florida, but is now restricted to Upper and Lower Matecumbe Keys, Long Key, and Big Pine Key. <i>Pilosocereus</i> keyensis and P. deeringii were originally described (as Cephalocereus species) from Key West and Lower Matecumbe Key, respectively, where they supposedly were endemic. Recent authors (D. F. Austin 1984; A. N. Lima and R. N. Adams 1996; R. P. Wunderlin and B. F. Hansen, www.plantatlas.usf.edu) have considered them to be within the range of variation of <i>P. robinii</i>. Although E. F. Anderson (2001) treated all of those named variants and others as merely insular forms of P. polygonus (Lamarck) Byles & G. D. Rowley, such treatment remains to be supported by a populational study throughout the West Indian range of the taxa.</p><!--
--><p>In 1992, a clone identified as Pilosocereus bahamensis (Britton & Rose) Byles & G. D. Rowley was discovered in a rock hammock surrounded by mangrove swamp on Key Largo, Florida. E. F. Anderson (2001) also included that species as a synonym of P. polygonus.</p><!--
+
--><p>In 1992, a clone identified as <i>Pilosocereus</i> bahamensis (Britton & Rose) Byles & G. D. Rowley was discovered in a rock hammock surrounded by mangrove swamp on Key Largo, Florida. E. F. Anderson (2001) also included that species as a synonym of P. polygonus.</p><!--
 
--><p>When main stems fall to the ground, for whatever reason, the lateral branches develop into plants with the ‘unbranched’ pattern that was the basis for Small’s concept of Cephalocereus deeringii (D. F. Austin 1984).</p><!--
 
--><p>When main stems fall to the ground, for whatever reason, the lateral branches develop into plants with the ‘unbranched’ pattern that was the basis for Small’s concept of Cephalocereus deeringii (D. F. Austin 1984).</p><!--
 
--><p>According to L. D. Benson (1982), when the flowers initially open in the afternoon they may have an odor of onion or garlic.</p><!--
 
--><p>According to L. D. Benson (1982), when the flowers initially open in the afternoon they may have an odor of onion or garlic.</p><!--
--><p>Pilosocereus robinii is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
+
--><p><i>Pilosocereus robinii</i> is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Pilosocereus robinii
 
name=Pilosocereus robinii
|author=
 
 
|authority=(Lemaire) Byles & G. D. Rowley
 
|authority=(Lemaire) Byles & G. D. Rowley
 
|rank=species
 
|rank=species
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|basionyms=Pilocereus robinii
 
|basionyms=Pilocereus robinii
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering (Mar-)Aug–Sep; fruiting year-round.
 
|habitat=Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock
 
|habitat=Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock
 
|elevation=0-10 m
 
|elevation=0-10 m
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|publication title=Cact. Succ. J. Gr. Brit.
 
|publication title=Cact. Succ. J. Gr. Brit.
 
|publication year=1957
 
|publication year=1957
|special status=
+
|special status=Illustrated;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_344.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_344.xml
 
|subfamily=Cactaceae subfam. Cactoideae
 
|subfamily=Cactaceae subfam. Cactoideae
 
|genus=Pilosocereus
 
|genus=Pilosocereus
 
|species=Pilosocereus robinii
 
|species=Pilosocereus robinii
|apex shape=acute;obtuse
 
|areole pubescence=hairy
 
|branch arrangement=parallel
 
|branch count=few;many
 
|crown size or width=narrow
 
|flower shape=campanulate
 
|flower some measurement=5cm;6cm
 
|hair duration=deciduous;persistent
 
|hair height or length or size=short
 
|hair length or size=long
 
|inner tepal coloration=white
 
|innermost tepal shape=oblanceolate;broadly linear
 
|longest spine some measurement=10
 
|midstripe coloration=brownish
 
|outer tepal coloration=light green
 
|outer tepal shape=ovate;obovate
 
|outermost tepal shape=ovate;elliptic
 
|plant orientation=erect
 
|rib count=9;13
 
|scale count=1;2
 
|seed some measurement=2
 
|spine count=9;31
 
|stem coloration=light;deep green or blue-green
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Pilosocereus]]
 
-->[[Category:Treatment]][[Category:Pilosocereus]]

Latest revision as of 21:58, 5 November 2020

Plants erect, normally with few–many, closely parallel branches forming a narrow crown. Stems light to deep green, or blue-green especially when young; ribs 9–13; areoles copiously hairy; hairs deciduous to persistent, long or short. Spines 9–31 per areole; longest spines 10 mm. Flowers campanulate, 5–6 cm; outer tepals light green with brownish midstripes, ovate to obovate, apex acute to obtuse; inner tepals white; outermost ovate to elliptic, innermost oblanceolate to broadly linear. Fruits sometimes with 1–2 scales. Seeds 2 mm.


Phenology: Flowering (Mar-)Aug–Sep; fruiting year-round.
Habitat: Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock
Elevation: 0-10 m

Distribution

V4 344-distribution-map.gif

Fla., Mexico, West Indies.

Discussion

Of conservation concern.

In the flora, Pilosocereus robinii has been known historically from Key West to Key Largo, Florida, but is now restricted to Upper and Lower Matecumbe Keys, Long Key, and Big Pine Key. Pilosocereus keyensis and P. deeringii were originally described (as Cephalocereus species) from Key West and Lower Matecumbe Key, respectively, where they supposedly were endemic. Recent authors (D. F. Austin 1984; A. N. Lima and R. N. Adams 1996; R. P. Wunderlin and B. F. Hansen, www.plantatlas.usf.edu) have considered them to be within the range of variation of P. robinii. Although E. F. Anderson (2001) treated all of those named variants and others as merely insular forms of P. polygonus (Lamarck) Byles & G. D. Rowley, such treatment remains to be supported by a populational study throughout the West Indian range of the taxa.

In 1992, a clone identified as Pilosocereus bahamensis (Britton & Rose) Byles & G. D. Rowley was discovered in a rock hammock surrounded by mangrove swamp on Key Largo, Florida. E. F. Anderson (2001) also included that species as a synonym of P. polygonus.

When main stems fall to the ground, for whatever reason, the lateral branches develop into plants with the ‘unbranched’ pattern that was the basis for Small’s concept of Cephalocereus deeringii (D. F. Austin 1984).

According to L. D. Benson (1982), when the flowers initially open in the afternoon they may have an odor of onion or garlic.

Pilosocereus robinii is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.
... more about "Pilosocereus robinii"
Bruce D. Parfitt +  and Arthur C. Gibson +
(Lemaire) Byles & G. D. Rowley +
Pilocereus robinii +
Key tree cactus +
Fla. +, Mexico +  and West Indies. +
0-10 m +
Upland tropical hardwood hammocks, "cactus hammocks" (low elevation thorn scrub), sandy soils, nearly bare coral rock +
Flowering (Mar-)Aug–Sep +  and fruiting year-round. +
Cact. Succ. J. Gr. Brit. +
Illustrated +  and Conservation concern +
Cephalocereus deeringii +, Cephalocereus keyensis +, Cereus robinii +, Cereus robinii var. deeringii +, Cereus robinii var. keyensis +, Pilosocereus deeringii +, Pilosocereus keyensis +  and Pilosocereus robinii var. deeringii +
Pilosocereus robinii +
Pilosocereus +
species +