Glandulicactus uncinatus var. wrightii

(Engelmann) Backeberg

Cactaceae 5: 2925. 1961.

Illustrated
Basionyms: Echinocactus uncinatus var. wrightii Engelmann Proc. Amer. A cad. Arts 3: 272. 1856
Synonyms: Ancistrocactus uncinatus var. wrightii (Engelmann) L. D. Benson Echinomastus unicinatus var. wrightii (Engelmann) F. M. Knuth Glandulicactus wrightii (Engelmann) D. Ferguson Sclerocactus uncinatus subsp. wrightii (Engelmann) N. P. Taylor
Treatment appears in FNA Volume 4. Mentioned on page 208.

Stems: ribs protruding 9–15 mm, 6–10 mm wide. Spines straw colored to pale gray or some (especially proximalmost few of areoles) pink to reddish (rarely all reddish); radial spines (5–) 8–10 per areole, abaxial 3 hooked, (11–) 20–35 (–47) mm, nearly as thick as central spines; central hooked spine 50–90 (–130) × 0.5–1 (–1.7) mm; others, if present, straight and poorly differentiated from adaxial radial spines. Flowers orange-red or reddish to purplish or brownish purple, usually dark or dull. Fruits: pulp mealy (funicular cells remaining intact, giving the fresh funicular surface a beaded appearance). Seeds: testa cells weakly to strongly convex. 2n = 22.


Phenology: Flowering Mar–May; fruiting May–Jun.
Habitat: Chihuahuan desert scrub, semidesert grasslands, limestone outcrops, sometimes igneous substrates or alluvium
Elevation: (100-)500-2000 m

Distribution

V4 389-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (Sonora), Mexico (Zacatecas)

Discussion

The distinctiveness of Glandulicactus uncinatus var. wrightii was long obscured by misidentifications based on questionable differences in tepal shape. Glandulicactus uncinatus var. uncinatus has green fruits and is endemic in and around San Luis Potosí, Mexico south of var. wrightii; perhaps it is more similar to G. mathssonii (Berge ex K. Schumann) D. Ferguson from even farther south (Guanajuato).

Selected References

None.

Lower Taxa

None.

"elongated" is not a number.

3.5 cm35 mm <br />0.035 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
cushionlike +
several +  and 1 +
apart +  and spaced +
circular to linear +
deciduous +  and persistent +
hourglass--shaped +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Allan D. Zimmerman +  and Bruce D. Parfitt +
(Engelmann) Backeberg +
hardened +
Echinocactus uncinatus var. wrightii +
triangular +
flattened +, terete to somewhat +  and hooked +
proliferating +
flattened +  and cylindric +
not mucilaginous +
crenate +  and notched +
N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +, Mexico (Nuevo León) +, Mexico (Sonora) +  and Mexico (Zacatecas) +
(100-)500-2000 m +
not separating +
dark +, reddish +  and purplish or brownish purple +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (15 cm150 mm <br />0.15 m <br />) +
indehiscent +
persistent +, long +  and deciduous +
15mm;25mm +
spheric +, obovoid +  and ovoid +
succulent +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
conspicuous +
Chihuahuan desert scrub, semidesert grasslands, limestone outcrops, sometimes igneous substrates or alluvium +
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
deciduous +  and persistent +
rudimentary +
flat +  and terete +
nearly +  and microscopic +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
9 cm90 mm <br />0.09 m <br /> (13 cm130 mm <br />0.13 m <br />) +
50mm +  and 90mm +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
straight +
differentiated +
crenate-serrate +  and entire +
deciduous +  and persistent +
Flowering Mar–May +  and fruiting May–Jun. +
not mucilaginous +
ridgelike +  and nipple--shaped +
protruding +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
6mm;10mm +
crenate-serrate +  and entire +
fringed +
arillate +  and strophiolate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
obovoid;pyriform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Illustrated +
9 cm90 mm <br />0.09 m <br /> (13 cm130 mm <br />0.13 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
pink +  and reddish +
deciduous +  and persistent +
50mm +  and 90mm +
8 (?) +  and 10 (?) +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
hard +  and rigid +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
decurrent +
unsegmented +
7.5 cm75 mm <br />0.075 m <br /> (10 cm100 mm <br />0.1 m <br />) +
grayish green +  and bluish green +
7cm;15cm +
spheric +  and cylindric +
succulent +
5cm;7.5cm +
pale-yellow +  and dull orange +
tuberculate +
Ancistrocactus uncinatus var. wrightii +, Echinomastus unicinatus var. wrightii +, Glandulicactus wrightii +  and Sclerocactus uncinatus subsp. wrightii +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Glandulicactus uncinatus var. wrightii +
Glandulicactus uncinatus +
variety +
dull +  and glossy +
9mm +  and 15mm +
6mm +  and 10mm +
epiphytic;epiphytic;epiphytic +
not deep-seated +
barrel-shaped +  and spheric +