Difference between revisions of "Coryphantha dasyacantha"

(Engelmann) Orcutt

Cactography 1926(1): 5. 1926.

Common names: Big Bend cactus
Basionym: Mammillaria dasyacantha Engelmann
Synonyms: Escobaria dasyacantha (Engelmann)B ritton & RoseEscobesseya dasyacantha (Engelmann) Hester
Treatment appears in FNA Volume 4. Treatment on page 230. Mentioned on page 224, 229.
FNA>Volume Importer
 
FNA>Volume Importer
Line 26: Line 26:
 
}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="plant architecture;plant coloration;plant coloration;stem pubescence"><b>Plants </b>usually unbranched (rarely 2–5 branches), white or brown bristly stem.</span> <span class="statement" id="st-d0_s1" data-properties="root density"><b>Roots </b>diffuse (rarely short taproots).</span> <span class="statement" id="st-d0_s2" data-properties="stem shape;stem height or length or size;stem shape;stem atypical length;stem length;stem atypical width;stem atypical width;stem width"><b>Stems </b>spheric, becoming short cylindric in age, 4.5–10 (–17) × (2–) 3–4.5 (–6) cm (1–3 × 2–5 cm in Davis Mountains, Texas);</span> <span class="statement" id="st-d0_s3" data-properties="tubercle atypical length;tubercle atypical length;tubercle length;tubercle atypical width;tubercle width;tubercle pubescence or texture">tubercles (4–) 7–8 (–12) × 3–5 (–7) mm, moderately soft;</span> <span class="statement" id="st-d0_s4" data-properties="areolar gland count">areolar glands absent;</span> <span class="statement" id="st-d0_s5" data-properties="parenchyma coating;medullary system architecture;medullary system count">parenchyma not mucilaginous, medullary vascular system absent.</span> <span class="statement" id="st-d0_s6" data-properties="spine count;spine coloration;tip coloration;tip coloration;tip coloration"><b>Spines </b>26–42 per areole, white with redbrown to nearly black tips (brown to reddish-brown with black tips in Davis Mountains);</span> <span class="statement" id="st-d0_s7" data-properties="spine arrangement;spine count;spine atypical some measurement;spine some measurement">radial spines 21–31 per areole (12–22 in Davis Mountains), 6–9 (–10) mm;</span> <span class="statement" id="st-d0_s8" data-properties="subcentral spine count;subcentral spine fixation or orientation">subcentral spines several, appressed;</span> <span class="statement" id="st-d0_s9" data-properties="central spine atypical count;central spine atypical count;central spine count;central spine orientation;central spine course;longest spine length;longest spine atypical width;longest spine width">central spines (3–) 4–9 (–11) per areole (2 in Davis Mountains), spreading, straight, longest spines 12–17 × 0.2–0.3 (–0.4) mm.</span> <span class="statement" id="st-d0_s10" data-properties="flower length;flower atypical width;flower atypical width;flower width;flower position;distal part reproduction;distal part some measurement;distal part height or length or size;part architecture"><b>Flowers </b>nearly apical, 15–30 × (10–) 13–15 (–22) mm, sterile distal part of flower tube 0–2 mm, shorter than stamen-bearing part;</span> <span class="statement" id="st-d0_s11" data-properties="outer tepal shape">outer tepals conspicuously fringed;</span> <span class="statement" id="st-d0_s12" data-properties="inner tepal count;midstripe coloration;midstripe coloration;midstripe coloration;midstripe coloration;midstripe coloration;midstripe atypical length;midstripe atypical length;midstripe length;midstripe width">inner tepals 14 per flower, midstripes pinkish to brown or brownish green, proximally white, (7–) 8–10 (–12) × 1.5–3 mm;</span> <span class="statement" id="st-d0_s13" data-properties="outer filament coloration;outer filament coloration">outer filaments white or colorless;</span> <span class="statement" id="st-d0_s14" data-properties="anther coloration">anthers bright-yellow;</span> <span class="statement" id="st-d0_s15" data-properties="stigma lobe atypical count;stigma lobe count;stigma lobe coloration;stigma lobe coloration;stigma lobe coloration;stigma lobe some measurement">stigma lobes 4 (–6), dark green to bright-yellow, 1–2.5 mm.</span> <span class="statement" id="st-d0_s16" data-properties="fruit coloration;fruit shape;fruit shape;fruit shape;fruit shape;fruit shape;fruit atypical length;fruit atypical length;fruit length;fruit atypical width;fruit width;fruit texture"><b>Fruits </b>bright red, clavate, cylindric, or narrowly ellipsoid, (7–) 13–27 (–35) × 3.5–6 (–7) mm, not very succulent;</span> <span class="statement" id="st-d0_s17" data-properties="floral remnant duration">floral remnant strongly persistent.</span> <span class="statement" id="st-d0_s18" data-properties=""><b>Seeds </b>black, subspheric, 1–1.2 mm, pitted.</span> <span class="statement" id="st-d0_s19" data-properties="seed coloration;seed shape;seed some measurement;seed relief;2n chromosome count">2n = 22.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>usually unbranched (rarely 2–5 branches), white or brown bristly stem. <b>Roots</b> diffuse (rarely short taproots). <b>Stems</b> spheric, becoming short cylindric in age, 4.5–10(–17) × (2–)3–4.5(–6) cm (1–3 × 2–5 cm in Davis Mountains, Texas); tubercles (4–)7–8(–12) × 3–5(–7) mm, moderately soft; areolar glands absent; parenchyma not mucilaginous, medullary vascular system absent. <b>Spines</b> 26–42 per areole, white with red-brown to nearly black tips (brown to reddish brown with black tips in Davis Mountains); radial spines 21–31 per areole (12–22 in Davis Mountains), 6–9(–10) mm; subcentral spines several, appressed; central spines (3–)4–9(–11) per areole (2 in Davis Mountains), spreading, straight, longest spines 12–17 × 0.2–0.3(–0.4) mm. <b>Flowers</b> nearly apical, 15–30 × (10–)13–15(–22) mm, sterile distal part of flower tube 0–2 mm, shorter than stamen-bearing part; outer tepals conspicuously fringed; inner tepals 14 per flower, midstripes pinkish to brown or brownish green, proximally white, (7–)8–10(–12) × 1.5–3 mm; outer filaments white or colorless; anthers bright yellow; stigma lobes 4(–6), dark green to bright yellow, 1–2.5 mm. <b>Fruits</b> bright red, clavate, cylindric, or narrowly ellipsoid, (7–)13–27(–35) × 3.5–6(–7) mm, not very succulent; floral remnant strongly persistent. <b>Seeds</b> black, subspheric, 1–1.2 mm, pitted. <b>2n</b> = 22.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
 +
|phenology=Flowering Mar–Jul; fruiting (May-)Jun–Aug, ca (1 1/2)-(2 1/2) months after flowering.
 
|habitat=Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats
 
|habitat=Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats
 
|elevation=800-1900 m
 
|elevation=800-1900 m
Line 48: Line 49:
 
|basionyms=Mammillaria dasyacantha
 
|basionyms=Mammillaria dasyacantha
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering Mar–Jul; fruiting (May-)Jun–Aug, ca (1 1/2)-(2 1/2) months after flowering.
 
|habitat=Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats
 
|habitat=Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats
 
|elevation=800-1900 m
 
|elevation=800-1900 m
Line 55: Line 57:
 
|publication year=1926
 
|publication year=1926
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_422.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_422.xml
 
|subfamily=Cactaceae subfam. Cactoideae
 
|subfamily=Cactaceae subfam. Cactoideae
 
|genus=Coryphantha
 
|genus=Coryphantha
 
|species=Coryphantha dasyacantha
 
|species=Coryphantha dasyacantha
|2n chromosome count=22
 
|anther coloration=bright-yellow
 
|areolar gland count=absent
 
|central spine atypical count=9;11
 
|central spine count=4;9
 
|central spine course=straight
 
|central spine orientation=spreading
 
|distal part height or length or size=shorter
 
|distal part reproduction=sterile
 
|distal part some measurement=0mm;2mm
 
|floral remnant duration=persistent
 
|flower atypical width=15mm;22mm
 
|flower length=15mm;30mm
 
|flower position=apical
 
|flower width=13mm;15mm
 
|fruit atypical length=27mm;35mm
 
|fruit atypical width=6mm;7mm
 
|fruit coloration=bright red
 
|fruit length=13mm;27mm
 
|fruit shape=ellipsoid;cylindric;ellipsoid;cylindric;clavate
 
|fruit texture=succulent
 
|fruit width=3.5mm;6mm
 
|inner tepal count=14
 
|longest spine atypical width=0.3mm;0.4mm
 
|longest spine length=12mm;17mm
 
|longest spine width=0.2mm;0.3mm
 
|medullary system architecture=vascular
 
|medullary system count=absent
 
|midstripe atypical length=10mm;12mm
 
|midstripe coloration=white;pinkish;brown or brownish green
 
|midstripe length=8mm;10mm
 
|midstripe width=1.5mm;3mm
 
|outer filament coloration=colorless;white
 
|outer tepal shape=fringed
 
|parenchyma coating=not mucilaginous
 
|part architecture=stamen-bearing
 
|plant architecture=unbranched
 
|plant coloration=brown;white
 
|root density=diffuse
 
|seed coloration=black
 
|seed relief=pitted
 
|seed shape=subspheric
 
|seed some measurement=1mm;1.2mm
 
|spine arrangement=radial
 
|spine atypical some measurement=9mm;10mm
 
|spine coloration=white
 
|spine count=21;31
 
|spine some measurement=6mm;9mm
 
|stem atypical length=10cm;17cm
 
|stem atypical width=4.5cm;6cm
 
|stem height or length or size=short
 
|stem length=4.5cm;10cm
 
|stem pubescence=bristly
 
|stem shape=cylindric;spheric
 
|stem width=3cm;4.5cm
 
|stigma lobe atypical count=4;6
 
|stigma lobe coloration=dark green;bright-yellow
 
|stigma lobe count=4
 
|stigma lobe some measurement=1mm;2.5mm
 
|subcentral spine count=several
 
|subcentral spine fixation or orientation=appressed
 
|tip coloration=redbrown;nearly black
 
|tubercle atypical length=8mm;12mm
 
|tubercle atypical width=5mm;7mm
 
|tubercle length=7mm;8mm
 
|tubercle pubescence or texture=soft
 
|tubercle width=3mm;5mm
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Coryphantha]]
 
-->[[Category:Treatment]][[Category:Coryphantha]]

Revision as of 15:10, 27 July 2019

Plants usually unbranched (rarely 2–5 branches), white or brown bristly stem. Roots diffuse (rarely short taproots). Stems spheric, becoming short cylindric in age, 4.5–10(–17) × (2–)3–4.5(–6) cm (1–3 × 2–5 cm in Davis Mountains, Texas); tubercles (4–)7–8(–12) × 3–5(–7) mm, moderately soft; areolar glands absent; parenchyma not mucilaginous, medullary vascular system absent. Spines 26–42 per areole, white with red-brown to nearly black tips (brown to reddish brown with black tips in Davis Mountains); radial spines 21–31 per areole (12–22 in Davis Mountains), 6–9(–10) mm; subcentral spines several, appressed; central spines (3–)4–9(–11) per areole (2 in Davis Mountains), spreading, straight, longest spines 12–17 × 0.2–0.3(–0.4) mm. Flowers nearly apical, 15–30 × (10–)13–15(–22) mm, sterile distal part of flower tube 0–2 mm, shorter than stamen-bearing part; outer tepals conspicuously fringed; inner tepals 14 per flower, midstripes pinkish to brown or brownish green, proximally white, (7–)8–10(–12) × 1.5–3 mm; outer filaments white or colorless; anthers bright yellow; stigma lobes 4(–6), dark green to bright yellow, 1–2.5 mm. Fruits bright red, clavate, cylindric, or narrowly ellipsoid, (7–)13–27(–35) × 3.5–6(–7) mm, not very succulent; floral remnant strongly persistent. Seeds black, subspheric, 1–1.2 mm, pitted. 2n = 22.


Phenology: Flowering Mar–Jul; fruiting (May-)Jun–Aug, ca (1 1/2)-(2 1/2) months after flowering.
Habitat: Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats
Elevation: 800-1900 m

Discussion

Many published photographs and specimen citations purported to represent Coryphantha dasyacantha reflect misidentifications. Ripe fruits, with their strongly persistent floral remnant, provide the only simple way to distinguish C. dasyacantha from C. duncanii. The black fresh seeds of C. dasyacantha and related species usually provide immediate distinction from C. tuberculosa, C. sneedii, and C. vivipara, which have differently shaped, bright reddish brown fresh seeds. In addition, the greenish stigma lobes of C. dasyacantha, C. duncanii, C. chaffeyi, C. pottsiana, and certain Mexican taxa contrast with the violet or white stigma lobes of C. vivipara, C. sneedii, C. alversonii, and C. hesteri. Vegetatively, C. dasyacantha always is distinguishable from C. vivipara and C. sneedii by its lack of the unusually large druses described under 20. C. sneedii.

Selected References

None.

Lower Taxa

None.
... more about "Coryphantha dasyacantha"
Allan D. Zimmerman +  and Bruce D. Parfitt +
(Engelmann) Orcutt +
Mammillaria dasyacantha +
Big Bend cactus +
800-1900 m +
Desert scrub with Larrea or Prosopis, on limestone, igneous rocks, gravelly bajadas, silty flats +
Flowering Mar–Jul +  and fruiting (May-)Jun–Aug, ca (1 1/2)-(2 1/2) months after flowering. +
Cactography +
Escobaria dasyacantha +  and Escobesseya dasyacantha +
Coryphantha dasyacantha +
Coryphantha +
species +