Euphorbia geyeri var. wheeleriana

Warnock & M. C. Johnston

SouthW. Naturalist 14: 128. 1969.

Conservation concern
Synonyms: Chamaesyce geyeri var. wheeleriana (Warnock & M. C. Johnston) Mayfield
Treatment appears in FNA Volume 12. Treatment on page 269. Mentioned on page 268.

Involucral gland appendages absent or rudimentary. Staminate flowers 10–20. Capsules 1.5–2 × 2–3 mm. Seeds 1.6–1.7 × 0.9–1.2 mm. 2n = 12.


Phenology: Flowering and fruiting midsummer–early fall.
Habitat: Sand barrens, riverbanks, disturbed sandy or gravelly areas.
Elevation: 500–1500 m.

Distribution

V12 948-distribution-map.jpg

N.Mex., Tex., Mexico (Chihuahua)

Discussion

Variety wheeleriana is known in the flora area from south-central New Mexico and western trans-Pecos Texas.

Selected References

None.

Lower Taxa

None.

"connate" is not a number. "distinct" is not a number."/2" is not declared as a valid unit of measurement for this property.

green +  and pale grayish +
emarginate +  and truncate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
white to reddish-tinged +
pointed +  and rounded +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Victor W. Steinmann +, Jeffery J. Morawetz +, Paul E. Berry +, Jess A. Peirson +  and Ya Yang +
Warnock & M. C. Johnston +
pinnate +, symmetric +  and asymmetric +
rounded +, angled +  and asymmetric +
Anisophyllum +
0.4 cm4 mm <br />0.004 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
oblong;oblong-obovate or oblongelliptic +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
globose-ovoid +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
in small , cymose clusters +  and solitary +
toothed +  and entire +
N.Mex. +, Tex. +  and Mexico (Chihuahua) +
500–1500 m. +
green +  and reddish +
0.2mm;0.4mm +
subtending +
elliptic-oblong +  and nearly circular +
0.2mm +  and 0.6mm +
Sand barrens, riverbanks, disturbed sandy or gravelly areas. +
axillary +  and terminal +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
campanulate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
caducous +, deciduous +  and persistent +
bractlike +
top;bottom +
palmate +  and pinnate +
toothed +  and entire +
venation +  and conspicuous +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
connate;distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering and fruiting midsummer–early fall. +
SouthW. Naturalist +
ashy white +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
terete +  and bluntly subangled +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
expanded +
Conservation concern +
free +, connate +  and distinct +
25 cm250 mm <br />0.25 m <br /> (45 cm450 mm <br />0.45 m <br />) +
mat-forming +
ascending +  and prostrate +
flattened +  and terete +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and distinct +
interpetiolar +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
connate +  and distinct +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +  and 0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +
Chamaesyce geyeri var. wheeleriana +
Euphorbia geyeri var. wheeleriana +
Euphorbia geyeri +
variety +
axillary +  and terminal +
10 +, 9 +, 8 +, 7 +  and 6 +