Croton lindheimerianus var. tharpii

M. C. Johnston

SouthW. Naturalist 3: 188. 1959.

Common names: Tharp’s three-seed croton
Treatment appears in FNA Volume 12. Treatment on page 219.

Plants roughly tomentose. Leaf-blades lanceolate, length mostly more than 2 times width, apex acute. Pedicels erect in fruit.


Phenology: Flowering Jul–Oct.
Habitat: Loamy or rocky flats, limestone washes.
Elevation: 1000–1600 m.

Distribution

V12 343-distribution-map.jpg

Ariz., Tex., Mexico (Coahuila)

Discussion

Variety tharpii is found in the flora area only in southern Arizona and western Texas.

Selected References

None.

Lower Taxa

None.

"connate" is not a number. "distinct" is not a number.

stellate-hairy +  and glabrous +
Benjamin W. van Ee +  and Paul E. Berry +
M. C. Johnston +
rounded +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2.8 cm28 mm <br />0.028 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lanceolate;suborbiculate +
0.8 cm8 mm <br />0.008 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Tharp’s three-seed croton +
Ariz. +, Tex. +  and Mexico (Coahuila) +
1000–1600 m. +
pistillate +  and staminate +
subtending +
Loamy or rocky flats, limestone washes. +
brown-dotted +
scale-like +  and stellate +
axillary +  and terminal +
palmate +  and pinnate +
colorless +  and reddish +
deciduous +, semideciduous +  and persistent +
palmate +  and pinnate +
denticulate +  and crenate +
extrastaminal +
pistillate +  and staminate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
pale green +  and white +
list;count;distinct +
linear-oblong-lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Jul–Oct. +
(1-)3-carpellate +
SouthW. Naturalist +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
lenticular +, globose +, ovoid +, oblong +  and ellipsoid +
1.5 cm15 mm <br />0.015 m <br /> (?) +
valvate +  and imbricate +
distinct +  and connate +
3 cm30 mm <br />0.03 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
stellate-tomentose +
caducous +, deciduous +  and persistent +
connate +  and distinct +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
Croton lindheimerianus var. tharpii +
Croton lindheimerianus +
variety +
14 +, 10 +, 9 +  and 8 +