Difference between revisions of "Echinocereus reichenbachii"

(Walpers) Haage ex Britton & Rose

Cactaceae 3: 25. 1922.

Common names: Lace hedgehog cactus
Basionym: Echinocactus reichenbachii Walpers
Synonyms: Echinocactus reichenbachii var. albispinus (Lahman) L. D. BensonEchinocactus reichenbachii subsp. baileyi (Rose) N. P. TaylorEchinocactus reichenbachii subsp. caespitosus (Engelmann) W. Blum & Mich. LangeEchinocactus reichenbachii subsp. fitchii (Britton & Rose) L. D. Benson
Treatment appears in FNA Volume 4. Mentioned on page 173.
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--><span class="statement" id="st-d0_s0" data-properties="plant architecture;plant architecture"><b>Plants </b>unbranched or sometimes 12-branched.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem shape;stem shape;stem shape;stem atypical length;stem length;stem atypical width;stem width"><b>Stems </b>erect, cylindric or short cylindric, 7.5–30 (–40) × (2.5–) 4–10 cm;</span> <span class="statement" id="st-d0_s2" data-properties="rib count;rib shape">ribs 10–19, slightly undulate;</span> <span class="statement" id="st-d0_s3" data-properties="areole atypical some measurement;areole some measurement;areole arrangement">areoles 1–6 (–10) mm apart.</span> <span class="statement" id="st-d0_s4" data-properties="spine count;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;central spine coloration;central spine tip coloration"><b>Spines </b>15–36 per areole, white to tan, dull pink, dark-brown, or purplish black, central spines and spine tips often darker;</span> <span class="statement" id="st-d0_s5" data-properties="spine arrangement;spine count;spine course;spine course;spine course;spine fixation or orientation;spine arrangement;spine arrangement;spine atypical some measurement;spine some measurement">radial spines 12–36 per areole, straight to slightly curved, appressed, pectinately arranged or nearly so, 2–8 (–25) mm;</span> <span class="statement" id="st-d0_s6" data-properties="central spine count;central spine shape;central spine atypical some measurement;central spine some measurement">central spines 0–7 per areole, terete, 1–6 (–15) mm.</span> <span class="statement" id="st-d0_s7" data-properties="flower atypical length;flower length;flower atypical width;flower width"><b>Flowers </b>4.5–8 (–12) × 5–10 (–12) cm;</span> <span class="statement" id="st-d0_s8" data-properties="flower tube length;flower tube width">flower tube 22–40 × 10–30 mm;</span> <span class="statement" id="st-d0_s9" data-properties="flower tube hair some measurement">flower tube hairs 5–15 mm;</span> <span class="statement" id="st-d0_s10" data-properties="inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal coloration;inner tepal length;inner tepal width;tip width;tip fragility">inner tepals silvery-pink to magenta, usually white, crimson, green, or multicolored proximally, 23–40 × 5–15 mm, tips relatively thin, delicate;</span> <span class="statement" id="st-d0_s11" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s12" data-properties="nectar chamber some measurement">nectar chamber 2–5 mm.</span> <span class="statement" id="st-d0_s13" data-properties="fruit coloration;fruit coloration;fruit coloration;fruit coloration;fruit coloration;fruit some measurement"><b>Fruits </b>green, olive green, or dark green, 15–28 mm, pulp white.</span> <span class="statement" id="st-d0_s14" data-properties="pulp coloration;2n chromosome count">2n = 22.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>unbranched or sometimes 12-branched. <b>Stems</b> erect, cylindric or short cylindric, 7.5–30(–40) × (2.5–)4–10 cm; ribs 10–19, slightly undulate; areoles 1–6(–10) mm apart. <b>Spines</b> 15–36 per areole, white to tan, dull pink, dark brown, or purplish black, central spines and spine tips often darker; radial spines 12–36 per areole, straight to slightly curved, appressed, pectinately arranged or nearly so, 2–8(–25) mm; central spines 0–7 per areole, terete, 1–6(–15) mm. <b>Flowers</b> 4.5–8(–12) × 5–10(–12) cm; flower tube 22–40 × 10–30 mm; flower tube hairs 5–15 mm; inner tepals silvery pink to magenta, usually white, crimson, green, or multicolored proximally, 23–40 × 5–15 mm, tips relatively thin, delicate; anthers yellow; nectar chamber 2–5 mm. <b>Fruits</b> green, olive green, or dark green, 15–28 mm, pulp white. <b>2n</b> = 22.</span><!--
  
 
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|phenology=Flowering early May-late Jun; fruiting 1 1/2-2 1/2 months after flowering.
 
|habitat=Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands
 
|habitat=Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands
 
|elevation=0-1500 m
 
|elevation=0-1500 m
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|basionyms=Echinocactus reichenbachii
 
|basionyms=Echinocactus reichenbachii
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering early May-late Jun; fruiting 1 1/2-2 1/2 months after flowering.
 
|habitat=Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands
 
|habitat=Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands
 
|elevation=0-1500 m
 
|elevation=0-1500 m
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|publication year=1922
 
|publication year=1922
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_329.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_329.xml
 
|subfamily=Cactaceae subfam. Cactoideae
 
|subfamily=Cactaceae subfam. Cactoideae
 
|genus=Echinocereus
 
|genus=Echinocereus
 
|species=Echinocereus reichenbachii
 
|species=Echinocereus reichenbachii
|2n chromosome count=22
 
|anther coloration=yellow
 
|areole arrangement=apart
 
|areole atypical some measurement=6mm;10mm
 
|areole some measurement=1mm;6mm
 
|central spine atypical some measurement=6mm;15mm
 
|central spine coloration=darker
 
|central spine count=0;7
 
|central spine shape=terete
 
|central spine some measurement=1mm;6mm
 
|central spine tip coloration=darker
 
|flower atypical length=8cm;12cm
 
|flower atypical width=10cm;12cm
 
|flower length=4.5cm;8cm
 
|flower tube hair some measurement=5mm;15mm
 
|flower tube length=22mm;40mm
 
|flower tube width=10mm;30mm
 
|flower width=5cm;10cm
 
|fruit coloration=dark green;olive green;dark green;olive green;green
 
|fruit some measurement=15mm;28mm
 
|inner tepal coloration=silvery-pink;magenta usually white crimson green or multicolored
 
|inner tepal length=23mm;40mm
 
|inner tepal width=5mm;15mm
 
|nectar chamber some measurement=2mm;5mm
 
|plant architecture=12-branched;unbranched
 
|pulp coloration=white
 
|rib count=10;19
 
|rib shape=undulate
 
|spine arrangement=nearly;arranged;radial
 
|spine atypical some measurement=8mm;25mm
 
|spine coloration=white;tan dull pink dark-brown or purplish black
 
|spine count=12;36
 
|spine course=straight;slightly curved
 
|spine fixation or orientation=appressed
 
|spine some measurement=2mm;8mm
 
|stem atypical length=30cm;40cm
 
|stem atypical width=2.5cm;4cm
 
|stem length=7.5cm;30cm
 
|stem orientation=erect
 
|stem shape=cylindric;short;cylindric
 
|stem width=4cm;10cm
 
|tip fragility=delicate
 
|tip width=thin
 
 
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-->[[Category:Treatment]][[Category:Echinocereus]]
 
-->[[Category:Treatment]][[Category:Echinocereus]]

Revision as of 14:05, 27 July 2019

Plants unbranched or sometimes 12-branched. Stems erect, cylindric or short cylindric, 7.5–30(–40) × (2.5–)4–10 cm; ribs 10–19, slightly undulate; areoles 1–6(–10) mm apart. Spines 15–36 per areole, white to tan, dull pink, dark brown, or purplish black, central spines and spine tips often darker; radial spines 12–36 per areole, straight to slightly curved, appressed, pectinately arranged or nearly so, 2–8(–25) mm; central spines 0–7 per areole, terete, 1–6(–15) mm. Flowers 4.5–8(–12) × 5–10(–12) cm; flower tube 22–40 × 10–30 mm; flower tube hairs 5–15 mm; inner tepals silvery pink to magenta, usually white, crimson, green, or multicolored proximally, 23–40 × 5–15 mm, tips relatively thin, delicate; anthers yellow; nectar chamber 2–5 mm. Fruits green, olive green, or dark green, 15–28 mm, pulp white. 2n = 22.


Phenology: Flowering early May-late Jun; fruiting 1 1/2-2 1/2 months after flowering.
Habitat: Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands
Elevation: 0-1500 m

Distribution

V4 329-distribution-map.gif

Colo., Kans., N.Mex., Okla., Tex., Mexico (Coahuila, Nuevo León, Tamaulipas).

Discussion

Of conservation concern.

The entire Echinocereus reichenbachii species group (E. reichenbachii, E. chisosensis, E. rigidissimus, E. pseudopectinatus, and an indefinite number of Mexican species) has unusually thin, bristlelike spines clothing the flowers and fruits as well as conspicuous, cobwebby tomentum of unusually long areolar hairs. The persistent, dry, white features of the flower tube are an essential distinction contrasting with the otherwise similar E. pectinatus species group (E. pectinatus, E. dasyacanthus, and possibly E. bonkerae), regardless of the spectacular, colorful floral displays.

The taxonomic and geographic boundaries among the segregate species or numerous proposed infraspecific taxa of Echinocereus reichenbachii remain nebulous and controversial. In no place do pure populations exist sympatrically, and all taxa appear completely interfertile. Typical E. reichenbachii is endemic to Mexico, near Saltillo, Coahuila. The common plants of E. reichenbachii in Texas, usually lacking central spines, are weakly distinguished from typical E. reichenbachii and are the basis for E. reichenbachii subsp. caespitosus. Oklahoma populations with unusually long bristlelike spines were named E. baileyi Rose [E. reichenbachii subsp. baileyi]. They intergrade, however, with the nearby, short-spined populations of E. reichenbachii. Echinocereus reichenbachii var. albispinus pertains to intermediates between E. baileyi and E. reichenbachii subsp. caespitosus. The flowers of E. reichenbachii var. fitchii are among the largest in the species, and their exact color pattern may prove taxonomically significant. Echinocereus reichenbachii var. albertii is somewhat morphologically and geographically intermediate between var. caespitosus and var. fitchii, but with flowers more closely resembling var. fitchii; it is sometimes considered a synonym of var. fitchii or a variety of E. fitchii Britton & Rose. The name “Echinocereus melanocentrus” appears frequently in cactus literature but has not been validly published.

Echinocereus reichenbachii is in the Center for Plant Conservation’s Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.
Allan D. Zimmerman +  and Bruce D. Parfitt +
(Walpers) Haage ex Britton & Rose +
Echinocactus reichenbachii +
Lace hedgehog cactus +
Colo. +, Kans. +, N.Mex. +, Okla. +, Tex. +, Mexico (Coahuila +, Nuevo León +  and Tamaulipas). +
0-1500 m +
Chihuahuan Desert, desert scrub, grasslands, oak-juniper woodlands +
Flowering early May-late Jun +  and fruiting 1 1/2-2 1/2 months after flowering. +
Echinocactus reichenbachii var. albispinus +, Echinocactus reichenbachii subsp. baileyi +, Echinocactus reichenbachii subsp. caespitosus +  and Echinocactus reichenbachii subsp. fitchii +
Echinocereus reichenbachii +
Echinocereus +
species +